BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. has sponsored the creation of one or more 401k plans.
| Measure | Date | Value |
|---|
| 2023 : US DEBT INDEX FUND W 2023 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $26,338,993 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $26,338,993 |
| Total transfer of assets to this plan | 2023-12-31 | $190,429,577 |
| Total transfer of assets from this plan | 2023-12-31 | $215,337,578 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $20,828,334 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $570,060 |
| Total income from all sources (including contributions) | 2023-12-31 | $29,986,713 |
| Total of all expenses incurred | 2023-12-31 | $228,580 |
| Value of total assets at end of year | 2023-12-31 | $559,821,480 |
| Value of total assets at beginning of year | 2023-12-31 | $534,713,074 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $228,580 |
| Total interest from all sources | 2023-12-31 | $218 |
| 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 | $20,769,877 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $457,679 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $20,828,334 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $570,060 |
| Administrative expenses (other) incurred | 2023-12-31 | $2,627 |
| Value of net income/loss | 2023-12-31 | $29,758,133 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $538,993,146 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $534,143,014 |
| Investment advisory and management fees | 2023-12-31 | $222,091 |
| Value of interest in common/collective trusts at end of year | 2023-12-31 | $539,050,848 |
| Value of interest in common/collective trusts at beginning of year | 2023-12-31 | $534,254,994 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-12-31 | $755 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2023-12-31 | $401 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2023-12-31 | $401 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-12-31 | $218 |
| Net investment gain or loss from common/collective trusts | 2023-12-31 | $3,647,502 |
| Aggregate proceeds on sale of assets | 2023-12-31 | $65,316 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $65,316 |
| 2022 : US DEBT INDEX FUND W 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-16,203,015 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-16,203,015 |
| Total transfer of assets to this plan | 2022-12-31 | $165,111,678 |
| Total transfer of assets from this plan | 2022-12-31 | $228,383,267 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $570,060 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $380,223 |
| Total income from all sources (including contributions) | 2022-12-31 | $-85,600,348 |
| Total of all expenses incurred | 2022-12-31 | $239,346 |
| Value of total assets at end of year | 2022-12-31 | $534,713,074 |
| Value of total assets at beginning of year | 2022-12-31 | $683,634,520 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $239,346 |
| Total interest from all sources | 2022-12-31 | $72 |
| 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 | $3,788 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $457,679 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $231,943 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $570,060 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $380,223 |
| Administrative expenses (other) incurred | 2022-12-31 | $3,267 |
| Value of net income/loss | 2022-12-31 | $-85,839,694 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $534,143,014 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $683,254,297 |
| Investment advisory and management fees | 2022-12-31 | $232,291 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $534,254,994 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $683,402,131 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $401 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $446 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $446 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $72 |
| Net investment gain or loss from common/collective trusts | 2022-12-31 | $-69,397,405 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $79,176 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $79,176 |
| 2021 : US DEBT INDEX FUND W 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $-30,714,312 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $-30,714,312 |
| Total transfer of assets to this plan | 2021-12-31 | $206,422,026 |
| Total transfer of assets from this plan | 2021-12-31 | $215,322,630 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $380,223 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $11,778,734 |
| Total income from all sources (including contributions) | 2021-12-31 | $-10,997,326 |
| Total of all expenses incurred | 2021-12-31 | $293,787 |
| Value of total assets at end of year | 2021-12-31 | $683,634,520 |
| Value of total assets at beginning of year | 2021-12-31 | $715,224,748 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $293,787 |
| Total interest from all sources | 2021-12-31 | $2 |
| 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 | $3,376 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $231,943 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $11,704,218 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $380,223 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $11,778,734 |
| Administrative expenses (other) incurred | 2021-12-31 | $3,300 |
| Value of net income/loss | 2021-12-31 | $-11,291,113 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $683,254,297 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $703,446,014 |
| Investment advisory and management fees | 2021-12-31 | $287,111 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $683,402,131 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $703,519,530 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $446 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $1,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $1,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $2 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $19,716,984 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $6,339 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $6,339 |
| 2020 : US DEBT INDEX FUND W 2020 401k financial data |
|---|
| Total transfer of assets to this plan | 2020-12-31 | $373,068,916 |
| Total transfer of assets from this plan | 2020-12-31 | $363,601,555 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $11,778,734 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $465,934,274 |
| Total income from all sources (including contributions) | 2020-12-31 | $48,217,731 |
| Total of all expenses incurred | 2020-12-31 | $278,788 |
| Value of total assets at end of year | 2020-12-31 | $715,224,748 |
| Value of total assets at beginning of year | 2020-12-31 | $1,111,973,984 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $278,788 |
| Total interest from all sources | 2020-12-31 | $31 |
| 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 | $3,572 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $11,704,218 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $465,669,010 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $11,778,734 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $465,934,274 |
| Administrative expenses (other) incurred | 2020-12-31 | $3,077 |
| Value of net income/loss | 2020-12-31 | $47,938,943 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $703,446,014 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $646,039,710 |
| Investment advisory and management fees | 2020-12-31 | $272,139 |
| Value of interest in common/collective trusts at end of year | 2020-12-31 | $703,519,530 |
| Value of interest in common/collective trusts at beginning of year | 2020-12-31 | $646,303,974 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $1,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $1,000 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $1,000 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $31 |
| Net investment gain or loss from common/collective trusts | 2020-12-31 | $48,217,700 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $618,588 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $618,588 |
| 2019 : US DEBT INDEX FUND W 2019 401k financial data |
|---|
| Total transfer of assets to this plan | 2019-12-31 | $404,016,112 |
| Total transfer of assets from this plan | 2019-12-31 | $1,003,216,790 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $465,934,274 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $1,924,955 |
| Total income from all sources (including contributions) | 2019-12-31 | $108,283,216 |
| Total of all expenses incurred | 2019-12-31 | $517,529 |
| Value of total assets at end of year | 2019-12-31 | $1,111,973,984 |
| Value of total assets at beginning of year | 2019-12-31 | $1,139,399,656 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $517,529 |
| Total interest from all sources | 2019-12-31 | $158 |
| 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 | $3,727 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $465,669,010 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $1,696,971 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $465,934,274 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $1,924,955 |
| Value of net income/loss | 2019-12-31 | $107,765,687 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $646,039,710 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $1,137,474,701 |
| Investment advisory and management fees | 2019-12-31 | $513,802 |
| Value of interest in common/collective trusts at end of year | 2019-12-31 | $646,303,974 |
| Value of interest in common/collective trusts at beginning of year | 2019-12-31 | $1,137,702,152 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $1,000 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $533 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $533 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $158 |
| Net investment gain or loss from common/collective trusts | 2019-12-31 | $108,283,058 |
| 2018 : US DEBT INDEX FUND W 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $-14,405,561 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-14,405,561 |
| Total transfer of assets to this plan | 2018-12-31 | $262,825,071 |
| Total transfer of assets from this plan | 2018-12-31 | $295,706,471 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $1,924,955 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $66,667,945 |
| Total income from all sources (including contributions) | 2018-12-31 | $655,411 |
| Total loss/gain on sale of assets | 2018-12-31 | $-3,837,570 |
| Total of all expenses incurred | 2018-12-31 | $466,655 |
| 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 | $1,139,399,656 |
| Value of total assets at beginning of year | 2018-12-31 | $1,236,835,290 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $466,655 |
| Total interest from all sources | 2018-12-31 | $18 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $3,762 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $1,696,971 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $66,428,135 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $1,924,955 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $66,667,945 |
| Value of net income/loss | 2018-12-31 | $188,756 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $1,137,474,701 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $1,170,167,345 |
| Investment advisory and management fees | 2018-12-31 | $462,893 |
| Value of interest in common/collective trusts at end of year | 2018-12-31 | $1,137,702,152 |
| Value of interest in common/collective trusts at beginning of year | 2018-12-31 | $1,170,406,156 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $533 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $999 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $999 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $18 |
| Net investment gain or loss from common/collective trusts | 2018-12-31 | $18,898,524 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $162,851,430 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $166,689,000 |
| 2017 : US DEBT INDEX FUND W 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2017-12-31 | $13,171,854 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $13,171,854 |
| Total transfer of assets to this plan | 2017-12-31 | $299,034,507 |
| Total transfer of assets from this plan | 2017-12-31 | $259,985,284 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $66,667,945 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $59,348,685 |
| Total income from all sources (including contributions) | 2017-12-31 | $42,151,784 |
| Total loss/gain on sale of assets | 2017-12-31 | $-218,267 |
| Total of all expenses incurred | 2017-12-31 | $478,619 |
| 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 | $1,236,835,290 |
| Value of total assets at beginning of year | 2017-12-31 | $1,148,793,642 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $478,619 |
| Total interest from all sources | 2017-12-31 | $19 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $3,765 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $66,428,135 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $59,249,215 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $66,667,945 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $59,348,685 |
| Value of net income/loss | 2017-12-31 | $41,673,165 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $1,170,167,345 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $1,089,444,957 |
| Investment advisory and management fees | 2017-12-31 | $474,854 |
| Value of interest in common/collective trusts at end of year | 2017-12-31 | $1,170,406,156 |
| Value of interest in common/collective trusts at beginning of year | 2017-12-31 | $1,089,543,894 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $999 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $533 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $533 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $19 |
| Net investment gain or loss from common/collective trusts | 2017-12-31 | $29,198,178 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $106,003,067 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $106,221,334 |
| 2016 : US DEBT INDEX FUND W 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $-6,583,594 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $-6,583,594 |
| Total transfer of assets to this plan | 2016-12-31 | $438,593,746 |
| Total transfer of assets from this plan | 2016-12-31 | $541,270,373 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $59,348,685 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $1,188,562 |
| Total income from all sources (including contributions) | 2016-12-31 | $39,832,881 |
| Total loss/gain on sale of assets | 2016-12-31 | $16,806,393 |
| Total of all expenses incurred | 2016-12-31 | $468,927 |
| 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 | $1,148,793,642 |
| Value of total assets at beginning of year | 2016-12-31 | $1,153,946,192 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $468,927 |
| Total interest from all sources | 2016-12-31 | $12 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $3,910 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $59,249,215 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $1,071,794 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $59,348,685 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $1,188,562 |
| Value of net income/loss | 2016-12-31 | $39,363,954 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $1,089,444,957 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $1,152,757,630 |
| Investment advisory and management fees | 2016-12-31 | $465,017 |
| Value of interest in common/collective trusts at end of year | 2016-12-31 | $1,089,543,894 |
| Value of interest in common/collective trusts at beginning of year | 2016-12-31 | $1,152,874,090 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $533 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $308 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $308 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $12 |
| Net investment gain or loss from common/collective trusts | 2016-12-31 | $29,610,070 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $424,959,292 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $408,152,899 |
| 2015 : US DEBT INDEX FUND W 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-16,940,682 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-16,940,682 |
| Total transfer of assets to this plan | 2015-12-31 | $616,500,467 |
| Total transfer of assets from this plan | 2015-12-31 | $126,947,229 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $1,188,562 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $769,547 |
| Total income from all sources (including contributions) | 2015-12-31 | $3,378,350 |
| Total loss/gain on sale of assets | 2015-12-31 | $128,165 |
| Total of all expenses incurred | 2015-12-31 | $337,944 |
| 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 | $1,153,946,192 |
| Value of total assets at beginning of year | 2015-12-31 | $660,933,533 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $337,944 |
| Total interest from all sources | 2015-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $0 |
| Administrative expenses professional fees incurred | 2015-12-31 | $3,910 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $1,071,794 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $699,839 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $1,188,562 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $769,547 |
| Value of net income/loss | 2015-12-31 | $3,040,406 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $1,152,757,630 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $660,163,986 |
| Investment advisory and management fees | 2015-12-31 | $334,034 |
| Value of interest in common/collective trusts at end of year | 2015-12-31 | $1,152,874,090 |
| Value of interest in common/collective trusts at beginning of year | 2015-12-31 | $660,233,161 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $308 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $533 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $533 |
| Net investment gain or loss from common/collective trusts | 2015-12-31 | $20,190,867 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $56,647,249 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $56,519,084 |
| 2014 : US DEBT INDEX FUND W 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $17,630,695 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $17,630,695 |
| Total transfer of assets to this plan | 2014-12-31 | $255,275,846 |
| Total transfer of assets from this plan | 2014-12-31 | $112,276,494 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $769,547 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $329,656 |
| Total income from all sources (including contributions) | 2014-12-31 | $31,694,096 |
| Total loss/gain on sale of assets | 2014-12-31 | $-2,053,076 |
| Total of all expenses incurred | 2014-12-31 | $220,342 |
| 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 | $660,933,533 |
| Value of total assets at beginning of year | 2014-12-31 | $486,020,536 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $220,342 |
| Total interest from all sources | 2014-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $0 |
| Administrative expenses professional fees incurred | 2014-12-31 | $3,860 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $699,839 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $276,043 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $769,547 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $329,656 |
| Value of net income/loss | 2014-12-31 | $31,473,754 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $660,163,986 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $485,690,880 |
| Investment advisory and management fees | 2014-12-31 | $216,482 |
| Value of interest in common/collective trusts at end of year | 2014-12-31 | $660,233,161 |
| Value of interest in common/collective trusts at beginning of year | 2014-12-31 | $485,743,960 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $533 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $533 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $533 |
| Net investment gain or loss from common/collective trusts | 2014-12-31 | $16,116,477 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $75,897,465 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $77,950,541 |
| 2013 : US DEBT INDEX FUND W 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $-4,565,189 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $-4,565,189 |
| Total transfer of assets to this plan | 2013-12-31 | $468,971,217 |
| Total transfer of assets from this plan | 2013-12-31 | $102,759,950 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $329,656 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $413,546 |
| Total income from all sources (including contributions) | 2013-12-31 | $-1,389,883 |
| Total loss/gain on sale of assets | 2013-12-31 | $-2,476,303 |
| Total of all expenses incurred | 2013-12-31 | $133,551 |
| 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 | $486,020,536 |
| Value of total assets at beginning of year | 2013-12-31 | $121,416,593 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $133,551 |
| Total interest from all sources | 2013-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $0 |
| Administrative expenses professional fees incurred | 2013-12-31 | $4,100 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $276,043 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $397,758 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $329,656 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $413,546 |
| Value of net income/loss | 2013-12-31 | $-1,523,434 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $485,690,880 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $121,003,047 |
| Investment advisory and management fees | 2013-12-31 | $129,451 |
| Value of interest in common/collective trusts at end of year | 2013-12-31 | $485,743,960 |
| Value of interest in common/collective trusts at beginning of year | 2013-12-31 | $121,018,302 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $533 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $533 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $533 |
| Net investment gain or loss from common/collective trusts | 2013-12-31 | $5,651,609 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $40,707,055 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $43,183,358 |
| 2012 : US DEBT INDEX FUND W 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $783,029 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $783,029 |
| Total transfer of assets to this plan | 2012-12-31 | $46,371,170 |
| Total transfer of assets from this plan | 2012-12-31 | $305,820,685 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $413,546 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $379,645 |
| Total income from all sources (including contributions) | 2012-12-31 | $6,387,284 |
| Total loss/gain on sale of assets | 2012-12-31 | $533,904 |
| Total of all expenses incurred | 2012-12-31 | $61,815 |
| 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 | $121,416,593 |
| Value of total assets at beginning of year | 2012-12-31 | $374,506,738 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $61,815 |
| Total interest from all sources | 2012-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $0 |
| Administrative expenses professional fees incurred | 2012-12-31 | $4,000 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $397,758 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $339,551 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $413,546 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $379,645 |
| Value of net income/loss | 2012-12-31 | $6,325,469 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $121,003,047 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $374,127,093 |
| Investment advisory and management fees | 2012-12-31 | $57,815 |
| Value of interest in common/collective trusts at end of year | 2012-12-31 | $121,018,302 |
| Value of interest in common/collective trusts at beginning of year | 2012-12-31 | $374,166,973 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $533 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $214 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $214 |
| Net investment gain or loss from common/collective trusts | 2012-12-31 | $5,070,351 |
| Aggregate proceeds on sale of assets | 2012-12-31 | $296,539,142 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $296,005,238 |
| 2011 : US DEBT INDEX FUND W 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $-3,190,454 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $-3,190,454 |
| Total transfer of assets to this plan | 2011-12-31 | $119,744,988 |
| Total transfer of assets from this plan | 2011-12-31 | $54,955,190 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $379,645 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $35,120 |
| Total income from all sources (including contributions) | 2011-12-31 | $23,336,587 |
| Total loss/gain on sale of assets | 2011-12-31 | $888,487 |
| Total of all expenses incurred | 2011-12-31 | $134,991 |
| 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 | $374,506,738 |
| Value of total assets at beginning of year | 2011-12-31 | $286,170,819 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $134,991 |
| 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 | $4,975 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $339,551 |
| 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 | $379,645 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $35,120 |
| Value of net income/loss | 2011-12-31 | $23,201,596 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $374,127,093 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $286,135,699 |
| Investment advisory and management fees | 2011-12-31 | $130,016 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $374,166,973 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $286,170,664 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $214 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $155 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $155 |
| Net investment gain or loss from common/collective trusts | 2011-12-31 | $25,638,554 |
| Aggregate proceeds on sale of assets | 2011-12-31 | $43,131,681 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $42,243,194 |
| 2010 : US DEBT INDEX FUND W 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $-3,630,506 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $-3,630,506 |
| Total transfer of assets to this plan | 2010-12-31 | $129,836,464 |
| Total transfer of assets from this plan | 2010-12-31 | $81,209,711 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $35,120 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $27,908 |
| Total income from all sources (including contributions) | 2010-12-31 | $16,245,368 |
| Total loss/gain on sale of assets | 2010-12-31 | $2,161,369 |
| Total of all expenses incurred | 2010-12-31 | $117,962 |
| 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 | $286,170,819 |
| Value of total assets at beginning of year | 2010-12-31 | $221,409,448 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $117,962 |
| 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 | $4,975 |
| 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 | $391 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $35,120 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $27,908 |
| Value of net income/loss | 2010-12-31 | $16,127,406 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $286,135,699 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $221,381,540 |
| Investment advisory and management fees | 2010-12-31 | $112,987 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $286,170,664 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $221,408,936 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $155 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $121 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $121 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $17,714,505 |
| Aggregate proceeds on sale of assets | 2010-12-31 | $37,436,341 |
| Aggregate carrying amount (costs) on sale of assets | 2010-12-31 | $35,274,972 |
