BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. has sponsored the creation of one or more 401k plans.
| Measure | Date | Value |
|---|
| 2023 : US DEBT INDEX FUND B 2023 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $413,004,482 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $413,004,482 |
| Total transfer of assets to this plan | 2023-12-31 | $463,328,481 |
| Total transfer of assets from this plan | 2023-12-31 | $1,536,530,203 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $22,057,053 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $6,343,328 |
| Total income from all sources (including contributions) | 2023-12-31 | $146,052,895 |
| Total of all expenses incurred | 2023-12-31 | $20,808 |
| Value of total assets at end of year | 2023-12-31 | $2,377,566,491 |
| Value of total assets at beginning of year | 2023-12-31 | $3,289,022,401 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $20,808 |
| Total interest from all sources | 2023-12-31 | $2,517 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $22,042,352 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $6,332,338 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $22,057,053 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $6,343,328 |
| Administrative expenses (other) incurred | 2023-12-31 | $3,300 |
| Value of net income/loss | 2023-12-31 | $146,032,087 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $2,355,509,438 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $3,282,679,073 |
| Investment advisory and management fees | 2023-12-31 | $9,036 |
| Value of interest in common/collective trusts at end of year | 2023-12-31 | $2,355,474,354 |
| Value of interest in common/collective trusts at beginning of year | 2023-12-31 | $3,282,640,063 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-12-31 | $49,785 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2023-12-31 | $50,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2023-12-31 | $50,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-12-31 | $2,517 |
| Net investment gain or loss from common/collective trusts | 2023-12-31 | $-266,954,104 |
| Aggregate proceeds on sale of assets | 2023-12-31 | $636,961 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $636,961 |
| 2022 : US DEBT INDEX FUND B 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-420,234,498 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-420,234,498 |
| Total transfer of assets to this plan | 2022-12-31 | $850,175,337 |
| Total transfer of assets from this plan | 2022-12-31 | $1,047,348,146 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $6,343,328 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $4,842,913 |
| Total income from all sources (including contributions) | 2022-12-31 | $-514,167,854 |
| Total of all expenses incurred | 2022-12-31 | $19,333 |
| Value of total assets at end of year | 2022-12-31 | $3,289,022,401 |
| Value of total assets at beginning of year | 2022-12-31 | $3,998,881,982 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $19,333 |
| Total interest from all sources | 2022-12-31 | $3,869 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-12-31 | No |
| Administrative expenses professional fees incurred | 2022-12-31 | $7,707 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $6,332,338 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $4,810,996 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $6,343,328 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $4,842,913 |
| Administrative expenses (other) incurred | 2022-12-31 | $3,300 |
| Value of net income/loss | 2022-12-31 | $-514,187,187 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $3,282,679,073 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $3,994,039,069 |
| Investment advisory and management fees | 2022-12-31 | $8,326 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $3,282,640,063 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $3,993,996,379 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $50,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $74,607 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $74,607 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $3,869 |
| Net investment gain or loss from common/collective trusts | 2022-12-31 | $-93,937,225 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $34,321,329 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $34,321,329 |
| 2021 : US DEBT INDEX FUND B 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $-215,711,174 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $-215,711,174 |
| Total transfer of assets to this plan | 2021-12-31 | $1,432,096,268 |
| Total transfer of assets from this plan | 2021-12-31 | $1,409,559,207 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $4,842,913 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $152,301,476 |
| Total income from all sources (including contributions) | 2021-12-31 | $-65,595,713 |
| Total of all expenses incurred | 2021-12-31 | $14,061 |
| Value of total assets at end of year | 2021-12-31 | $3,998,881,982 |
| Value of total assets at beginning of year | 2021-12-31 | $4,189,413,258 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $14,061 |
| Total interest from all sources | 2021-12-31 | $126 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2021-12-31 | No |
| Administrative expenses professional fees incurred | 2021-12-31 | $3,378 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $4,810,996 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $152,291,140 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $4,842,913 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $152,301,476 |
| Administrative expenses (other) incurred | 2021-12-31 | $3,300 |
| Value of net income/loss | 2021-12-31 | $-65,609,774 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $3,994,039,069 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $4,037,111,782 |
| Investment advisory and management fees | 2021-12-31 | $7,383 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $3,993,996,379 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $4,037,072,118 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $74,607 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $50,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $50,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $126 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $150,115,335 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $4,174,260 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $4,174,260 |
| 2020 : US DEBT INDEX FUND B 2020 401k financial data |
|---|
| Total transfer of assets to this plan | 2020-12-31 | $982,912,332 |
| Total transfer of assets from this plan | 2020-12-31 | $928,538,256 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $152,301,476 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $36,854,329 |
| Total income from all sources (including contributions) | 2020-12-31 | $262,827,419 |
| Total of all expenses incurred | 2020-12-31 | $14,681 |
| Value of total assets at end of year | 2020-12-31 | $4,189,413,258 |
| Value of total assets at beginning of year | 2020-12-31 | $3,756,779,297 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $14,681 |
| Total interest from all sources | 2020-12-31 | $6,114 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2020-12-31 | No |
| Administrative expenses professional fees incurred | 2020-12-31 | $4,879 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $152,291,140 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $36,851,283 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $152,301,476 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $36,854,329 |
| Administrative expenses (other) incurred | 2020-12-31 | $3,300 |
| Value of net income/loss | 2020-12-31 | $262,812,738 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $4,037,111,782 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $3,719,924,968 |
| Investment advisory and management fees | 2020-12-31 | $6,502 |
| Value of interest in common/collective trusts at end of year | 2020-12-31 | $4,037,072,118 |
| Value of interest in common/collective trusts at beginning of year | 2020-12-31 | $3,719,878,014 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $50,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $50,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $50,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $6,114 |
| Net investment gain or loss from common/collective trusts | 2020-12-31 | $262,821,305 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $2,751,651 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $2,751,651 |
| 2019 : US DEBT INDEX FUND B 2019 401k financial data |
|---|
| Total transfer of assets to this plan | 2019-12-31 | $1,486,013,984 |
| Total transfer of assets from this plan | 2019-12-31 | $890,756,607 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $36,854,329 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $3,571,601 |
| Total income from all sources (including contributions) | 2019-12-31 | $296,109,224 |
| Total of all expenses incurred | 2019-12-31 | $14,458 |
| Value of total assets at end of year | 2019-12-31 | $3,756,779,297 |
| Value of total assets at beginning of year | 2019-12-31 | $2,832,144,426 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $14,458 |
| Total interest from all sources | 2019-12-31 | $7,862 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2019-12-31 | No |
| Administrative expenses professional fees incurred | 2019-12-31 | $5,559 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $36,851,283 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $3,075,826 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $36,854,329 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $3,571,601 |
| Value of net income/loss | 2019-12-31 | $296,094,766 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $3,719,924,968 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $2,828,572,825 |
| Investment advisory and management fees | 2019-12-31 | $8,899 |
| Value of interest in common/collective trusts at end of year | 2019-12-31 | $3,719,878,014 |
| Value of interest in common/collective trusts at beginning of year | 2019-12-31 | $2,828,528,579 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $50,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $540,021 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $540,021 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $7,862 |
| Net investment gain or loss from common/collective trusts | 2019-12-31 | $296,101,362 |
| 2018 : US DEBT INDEX FUND B 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $-41,302,518 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-41,302,518 |
| Total transfer of assets to this plan | 2018-12-31 | $628,514,162 |
| Total transfer of assets from this plan | 2018-12-31 | $411,768,356 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $3,571,601 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $1,322,030 |
| Total income from all sources (including contributions) | 2018-12-31 | $8,140,253 |
| Total loss/gain on sale of assets | 2018-12-31 | $-9,191,792 |
| Total of all expenses incurred | 2018-12-31 | $11,263 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $0 |
| Value of total assets at end of year | 2018-12-31 | $2,832,144,426 |
| Value of total assets at beginning of year | 2018-12-31 | $2,605,020,059 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $11,263 |
| Total interest from all sources | 2018-12-31 | $1,327 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $5,615 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $3,075,826 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $1,321,051 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $3,571,601 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $1,322,030 |
| Administrative expenses (other) incurred | 2018-12-31 | $-208 |
| Value of net income/loss | 2018-12-31 | $8,128,990 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $2,828,572,825 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $2,603,698,029 |
| Investment advisory and management fees | 2018-12-31 | $5,856 |
| Value of interest in common/collective trusts at end of year | 2018-12-31 | $2,828,528,579 |
| Value of interest in common/collective trusts at beginning of year | 2018-12-31 | $2,603,649,008 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $540,021 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $50,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $50,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $1,327 |
| Net investment gain or loss from common/collective trusts | 2018-12-31 | $58,633,236 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $386,567,326 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $395,759,118 |
| 2017 : US DEBT INDEX FUND B 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2017-12-31 | $25,328,385 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $25,328,385 |
| Total transfer of assets to this plan | 2017-12-31 | $435,495,058 |
| Total transfer of assets from this plan | 2017-12-31 | $459,191,766 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $1,322,030 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $10,449,718 |
| Total income from all sources (including contributions) | 2017-12-31 | $90,202,058 |
| Total loss/gain on sale of assets | 2017-12-31 | $-1,368,407 |
| Total of all expenses incurred | 2017-12-31 | $11,404 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $0 |
| Value of total assets at end of year | 2017-12-31 | $2,605,020,059 |
| Value of total assets at beginning of year | 2017-12-31 | $2,547,653,801 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $11,404 |
| Total interest from all sources | 2017-12-31 | $632 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $5,593 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $1,321,051 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $10,432,559 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $1,322,030 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $10,449,718 |
| Value of net income/loss | 2017-12-31 | $90,190,654 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $2,603,698,029 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $2,537,204,083 |
| Investment advisory and management fees | 2017-12-31 | $5,811 |
| Value of interest in common/collective trusts at end of year | 2017-12-31 | $2,603,649,008 |
| Value of interest in common/collective trusts at beginning of year | 2017-12-31 | $2,537,171,242 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $50,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $50,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $50,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $632 |
| Net investment gain or loss from common/collective trusts | 2017-12-31 | $66,241,448 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $449,080,192 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $450,448,599 |
| 2016 : US DEBT INDEX FUND B 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $-13,209,488 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $-13,209,488 |
| Total transfer of assets to this plan | 2016-12-31 | $956,646,659 |
| Total transfer of assets from this plan | 2016-12-31 | $336,192,397 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $10,449,718 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $1,093,233 |
| Total income from all sources (including contributions) | 2016-12-31 | $41,992,496 |
| Total loss/gain on sale of assets | 2016-12-31 | $-2,636,209 |
| Total of all expenses incurred | 2016-12-31 | $12,615 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2016-12-31 | $0 |
| Value of total assets at end of year | 2016-12-31 | $2,547,653,801 |
| Value of total assets at beginning of year | 2016-12-31 | $1,875,863,173 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $12,615 |
| Total interest from all sources | 2016-12-31 | $315 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $5,700 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $10,432,559 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $1,086,679 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $10,449,718 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $1,093,233 |
| Value of net income/loss | 2016-12-31 | $41,979,881 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $2,537,204,083 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $1,874,769,940 |
| Investment advisory and management fees | 2016-12-31 | $6,915 |
| Value of interest in common/collective trusts at end of year | 2016-12-31 | $2,537,171,242 |
| Value of interest in common/collective trusts at beginning of year | 2016-12-31 | $1,874,726,267 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $50,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $50,227 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $50,227 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $315 |
| Net investment gain or loss from common/collective trusts | 2016-12-31 | $57,837,878 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $312,899,157 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $315,535,366 |
| 2015 : US DEBT INDEX FUND B 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-29,921,775 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-29,921,775 |
| Total transfer of assets to this plan | 2015-12-31 | $385,328,252 |
| Total transfer of assets from this plan | 2015-12-31 | $860,140,060 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $1,093,233 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $3,091,587 |
| Total income from all sources (including contributions) | 2015-12-31 | $13,354,720 |
| Total loss/gain on sale of assets | 2015-12-31 | $-24,269,218 |
| Total of all expenses incurred | 2015-12-31 | $10,310 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $0 |
| Value of total assets at end of year | 2015-12-31 | $1,875,863,173 |
| Value of total assets at beginning of year | 2015-12-31 | $2,339,328,925 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $10,310 |
| Total interest from all sources | 2015-12-31 | $130 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $0 |
| Administrative expenses professional fees incurred | 2015-12-31 | $5,700 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $1,086,679 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $3,084,349 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $1,093,233 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $3,091,587 |
| Administrative expenses (other) incurred | 2015-12-31 | $-1,107 |
| Value of net income/loss | 2015-12-31 | $13,344,410 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $1,874,769,940 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $2,336,237,338 |
| Investment advisory and management fees | 2015-12-31 | $5,717 |
| Value of interest in common/collective trusts at end of year | 2015-12-31 | $1,874,726,267 |
| Value of interest in common/collective trusts at beginning of year | 2015-12-31 | $2,336,194,576 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $50,227 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $50,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $50,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $130 |
| Net investment gain or loss from common/collective trusts | 2015-12-31 | $67,545,583 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $796,220,962 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $820,490,180 |
| 2014 : US DEBT INDEX FUND B 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $64,496,159 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $64,496,159 |
| Total transfer of assets to this plan | 2014-12-31 | $1,019,882,870 |
| Total transfer of assets from this plan | 2014-12-31 | $808,227,539 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $3,091,587 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $6,503,326 |
| Total income from all sources (including contributions) | 2014-12-31 | $125,202,694 |
| Total loss/gain on sale of assets | 2014-12-31 | $-8,491,818 |
| Total of all expenses incurred | 2014-12-31 | $11,418 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $0 |
| Value of total assets at end of year | 2014-12-31 | $2,339,328,925 |
| Value of total assets at beginning of year | 2014-12-31 | $2,005,894,057 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $11,418 |
| Total interest from all sources | 2014-12-31 | $95 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $0 |
| Administrative expenses professional fees incurred | 2014-12-31 | $5,650 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $3,084,349 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $6,495,612 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $3,091,587 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $6,503,326 |
| Value of net income/loss | 2014-12-31 | $125,191,276 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $2,336,237,338 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $1,999,390,731 |
| Investment advisory and management fees | 2014-12-31 | $5,768 |
| Value of interest in common/collective trusts at end of year | 2014-12-31 | $2,336,194,576 |
| Value of interest in common/collective trusts at beginning of year | 2014-12-31 | $1,999,348,446 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $50,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $49,999 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $49,999 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $95 |
| Net investment gain or loss from common/collective trusts | 2014-12-31 | $69,198,258 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $690,931,730 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $699,423,548 |
| 2013 : US DEBT INDEX FUND B 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $-89,039,083 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $-89,039,083 |
| Total transfer of assets to this plan | 2013-12-31 | $545,189,911 |
| Total transfer of assets from this plan | 2013-12-31 | $333,835,845 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $6,503,326 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $44,072,195 |
| Total income from all sources (including contributions) | 2013-12-31 | $-38,463,424 |
| Total loss/gain on sale of assets | 2013-12-31 | $382,209 |
| Total of all expenses incurred | 2013-12-31 | $11,624 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $0 |
| Value of total assets at end of year | 2013-12-31 | $2,005,894,057 |
| Value of total assets at beginning of year | 2013-12-31 | $1,870,583,908 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $11,624 |
| Total interest from all sources | 2013-12-31 | $279 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $0 |
| Administrative expenses professional fees incurred | 2013-12-31 | $5,900 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $6,495,612 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $44,037,083 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $6,503,326 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $44,072,195 |
| Value of net income/loss | 2013-12-31 | $-38,475,048 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $1,999,390,731 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $1,826,511,713 |
| Investment advisory and management fees | 2013-12-31 | $5,724 |
| Value of interest in common/collective trusts at end of year | 2013-12-31 | $1,999,348,446 |
| Value of interest in common/collective trusts at beginning of year | 2013-12-31 | $1,826,496,825 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $49,999 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $50,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $50,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $279 |
| Net investment gain or loss from common/collective trusts | 2013-12-31 | $50,193,171 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $329,666,502 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $329,284,293 |
| 2012 : US DEBT INDEX FUND B 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $-44,752,849 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $-44,752,849 |
| Total transfer of assets to this plan | 2012-12-31 | $373,714,494 |
| Total transfer of assets from this plan | 2012-12-31 | $594,745,770 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $44,072,195 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $2,173,070 |
| Total income from all sources (including contributions) | 2012-12-31 | $77,148,842 |
| Total loss/gain on sale of assets | 2012-12-31 | $28,764,081 |
| Total of all expenses incurred | 2012-12-31 | $11,641 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $0 |
| Value of total assets at end of year | 2012-12-31 | $1,870,583,908 |
| Value of total assets at beginning of year | 2012-12-31 | $1,972,578,858 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $11,641 |
| Total interest from all sources | 2012-12-31 | $82 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $0 |
| Administrative expenses professional fees incurred | 2012-12-31 | $5,800 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $44,037,083 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $2,164,577 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $44,072,195 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $2,173,070 |
| Value of net income/loss | 2012-12-31 | $77,137,201 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $1,826,511,713 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $1,970,405,788 |
| Investment advisory and management fees | 2012-12-31 | $5,841 |
| Value of interest in common/collective trusts at end of year | 2012-12-31 | $1,826,496,825 |
| Value of interest in common/collective trusts at beginning of year | 2012-12-31 | $1,970,412,495 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $50,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $1,786 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $1,786 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $82 |
| Net investment gain or loss from common/collective trusts | 2012-12-31 | $93,137,528 |
| Aggregate proceeds on sale of assets | 2012-12-31 | $585,847,668 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $557,083,587 |
| 2011 : US DEBT INDEX FUND B 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $50,571,652 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $50,571,652 |
| Total transfer of assets to this plan | 2011-12-31 | $457,681,083 |
| Total transfer of assets from this plan | 2011-12-31 | $550,390,332 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $2,173,070 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $9,084 |
| Total income from all sources (including contributions) | 2011-12-31 | $148,486,174 |
| Total loss/gain on sale of assets | 2011-12-31 | $13,249,322 |
| Total of all expenses incurred | 2011-12-31 | $12,539 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $0 |
| Value of total assets at end of year | 2011-12-31 | $1,972,578,858 |
| Value of total assets at beginning of year | 2011-12-31 | $1,914,650,486 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $12,539 |
| Total interest from all sources | 2011-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $0 |
| Administrative expenses professional fees incurred | 2011-12-31 | $6,810 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $2,164,577 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $2,173,070 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $9,084 |
| Value of net income/loss | 2011-12-31 | $148,473,635 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $1,970,405,788 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $1,914,641,402 |
| Investment advisory and management fees | 2011-12-31 | $5,729 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $1,970,412,495 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $1,914,648,147 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $1,786 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $2,339 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $2,339 |
| Net investment gain or loss from common/collective trusts | 2011-12-31 | $84,665,200 |
| Aggregate proceeds on sale of assets | 2011-12-31 | $526,633,088 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $513,383,766 |
| 2010 : US DEBT INDEX FUND B 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $6,781,812 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $6,781,812 |
| Total transfer of assets to this plan | 2010-12-31 | $506,109,587 |
| Total transfer of assets from this plan | 2010-12-31 | $273,189,356 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $9,084 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $35,808,834 |
| Total income from all sources (including contributions) | 2010-12-31 | $104,608,747 |
| Total loss/gain on sale of assets | 2010-12-31 | $7,038,751 |
| Total of all expenses incurred | 2010-12-31 | $12,632 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2010-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2010-12-31 | $0 |
| Value of total assets at end of year | 2010-12-31 | $1,914,650,486 |
| Value of total assets at beginning of year | 2010-12-31 | $1,612,933,890 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $12,632 |
| Total interest from all sources | 2010-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $0 |
| Administrative expenses professional fees incurred | 2010-12-31 | $6,810 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $35,800,000 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $9,084 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $35,808,834 |
| Value of net income/loss | 2010-12-31 | $104,596,115 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $1,914,641,402 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $1,577,125,056 |
| Investment advisory and management fees | 2010-12-31 | $5,822 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $1,914,648,147 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $1,577,132,227 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $2,339 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $1,663 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $1,663 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $90,788,184 |
| Aggregate proceeds on sale of assets | 2010-12-31 | $237,760,228 |
| Aggregate carrying amount (costs) on sale of assets | 2010-12-31 | $230,721,477 |
