STATE STREET GLOBAL ADVISORS TRUST COMPANY has sponsored the creation of one or more 401k plans.
Submission information for form 5500 for 401k plan SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND
401k plan membership statisitcs for SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND
| Measure | Date | Value |
|---|
| 2023 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2023 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $0 |
| Total transfer of assets to this plan | 2023-12-31 | $425,705,251 |
| Total transfer of assets from this plan | 2023-12-31 | $101,116,519 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $2,125 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $7,899 |
| Total income from all sources (including contributions) | 2023-12-31 | $80,837,562 |
| Total loss/gain on sale of assets | 2023-12-31 | $0 |
| Total of all expenses incurred | 2023-12-31 | $31,150 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-12-31 | $0 |
| Value of total assets at end of year | 2023-12-31 | $1,869,258,564 |
| Value of total assets at beginning of year | 2023-12-31 | $1,463,869,194 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $31,150 |
| Total interest from all sources | 2023-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $3 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $3 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $2,125 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $7,899 |
| Administrative expenses (other) incurred | 2023-12-31 | $375 |
| Value of net income/loss | 2023-12-31 | $80,806,412 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $1,869,256,439 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $1,463,861,295 |
| Value of interest in common/collective trusts at end of year | 2023-12-31 | $1,869,258,561 |
| Value of interest in common/collective trusts at beginning of year | 2023-12-31 | $1,463,869,191 |
| Net investment gain or loss from common/collective trusts | 2023-12-31 | $80,837,562 |
| Contract administrator fees | 2023-12-31 | $25,000 |
| 2022 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2022 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $0 |
| Total transfer of assets to this plan | 2022-12-31 | $1,350,521,854 |
| Total transfer of assets from this plan | 2022-12-31 | $111,752,064 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $7,899 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $1,382,578 |
| Total income from all sources (including contributions) | 2022-12-31 | $-10,712,987 |
| Total loss/gain on sale of assets | 2022-12-31 | $0 |
| Total of all expenses incurred | 2022-12-31 | $31,659 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-12-31 | $0 |
| Value of total assets at end of year | 2022-12-31 | $1,463,869,194 |
| Value of total assets at beginning of year | 2022-12-31 | $237,218,729 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $31,659 |
| Total interest from all sources | 2022-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $0 |
| Administrative expenses professional fees incurred | 2022-12-31 | $5,775 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $3 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $1,380,454 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $7,899 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $1,382,578 |
| Administrative expenses (other) incurred | 2022-12-31 | $25,884 |
| Value of net income/loss | 2022-12-31 | $-10,744,646 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $1,463,861,295 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $235,836,151 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $1,463,869,191 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $235,838,275 |
| Net investment gain or loss from common/collective trusts | 2022-12-31 | $-10,712,987 |
| 2021 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2021-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $0 |
| Total transfer of assets to this plan | 2021-12-31 | $70,067,370 |
| Total transfer of assets from this plan | 2021-12-31 | $46,001,012 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $1,382,578 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $10,232,035 |
| Expenses. Interest paid | 2021-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2021-12-31 | $0 |
| Total income from all sources (including contributions) | 2021-12-31 | $-1,088,171 |
| Total loss/gain on sale of assets | 2021-12-31 | $0 |
| Total of all expenses incurred | 2021-12-31 | $33,231 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2021-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2021-12-31 | $0 |
| Value of total assets at end of year | 2021-12-31 | $237,218,729 |
| Value of total assets at beginning of year | 2021-12-31 | $223,123,230 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $33,231 |
| Total interest from all sources | 2021-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $0 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2021-12-31 | $0 |
| Assets. Real estate other than employer real property at end of year | 2021-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2021-12-31 | $0 |
| Administrative expenses professional fees incurred | 2021-12-31 | $7,500 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2021-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2021-12-31 | $0 |
| Assets. Other investments not covered elsewhere at beginning of year | 2021-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $1,380,454 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $10,229,919 |
| Assets. Loans (other than to participants) at end of year | 2021-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2021-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $1,382,578 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $10,232,035 |
| Other income not declared elsewhere | 2021-12-31 | $0 |
| Administrative expenses (other) incurred | 2021-12-31 | $25,731 |
| Total non interest bearing cash at end of year | 2021-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2021-12-31 | $0 |
| Value of net income/loss | 2021-12-31 | $-1,121,402 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $235,836,151 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $212,891,195 |
| Investment advisory and management fees | 2021-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2021-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2021-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2021-12-31 | $0 |
| Interest earned on other investments | 2021-12-31 | $0 |
| Income. Interest from US Government securities | 2021-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2021-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $235,838,275 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $212,893,311 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $0 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $0 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2021-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2021-12-31 | $0 |
| Asset value of US Government securities at end of year | 2021-12-31 | $0 |
| Asset value of US Government securities at beginning of year | 2021-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2021-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $-1,088,171 |
| Income. Dividends from preferred stock | 2021-12-31 | $0 |
| Income. Dividends from common stock | 2021-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2021-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2021-12-31 | $0 |
| Contract administrator fees | 2021-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2021-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $0 |
| 2020 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2020 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $0 |
| Total transfer of assets from this plan | 2020-12-31 | $1,578,675,749 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $10,232,035 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $3,454,164 |
| Total income from all sources (including contributions) | 2020-12-31 | $36,307,663 |
| Total loss/gain on sale of assets | 2020-12-31 | $0 |
| Total of all expenses incurred | 2020-12-31 | $33,200 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2020-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2020-12-31 | $0 |
| Value of total assets at end of year | 2020-12-31 | $223,123,230 |
| Value of total assets at beginning of year | 2020-12-31 | $1,758,746,645 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $33,200 |
| Total interest from all sources | 2020-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $0 |
| Administrative expenses professional fees incurred | 2020-12-31 | $7,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $10,229,919 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $3,452,040 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $10,232,035 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $3,454,164 |
| Administrative expenses (other) incurred | 2020-12-31 | $25,700 |
| Value of net income/loss | 2020-12-31 | $36,274,463 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $212,891,195 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $1,755,292,481 |
| Value of interest in common/collective trusts at end of year | 2020-12-31 | $212,893,311 |
| Value of interest in common/collective trusts at beginning of year | 2020-12-31 | $1,755,294,605 |
| Net investment gain or loss from common/collective trusts | 2020-12-31 | $36,307,663 |
| 2019 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2019 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $0 |
| Total transfer of assets to this plan | 2019-12-31 | $75,977,272 |
| Total transfer of assets from this plan | 2019-12-31 | $164,295,151 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $3,454,164 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $1,739,597 |
| Total income from all sources (including contributions) | 2019-12-31 | $69,536,056 |
| Total loss/gain on sale of assets | 2019-12-31 | $0 |
| Total of all expenses incurred | 2019-12-31 | $33,200 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2019-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2019-12-31 | $0 |
| Value of total assets at end of year | 2019-12-31 | $1,758,746,645 |
| Value of total assets at beginning of year | 2019-12-31 | $1,775,847,101 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $33,200 |
| Total interest from all sources | 2019-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $0 |
| Administrative expenses professional fees incurred | 2019-12-31 | $7,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $3,452,040 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $1,737,473 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $3,454,164 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $1,739,597 |
| Administrative expenses (other) incurred | 2019-12-31 | $25,700 |
| Value of net income/loss | 2019-12-31 | $69,502,856 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $1,755,292,481 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $1,774,107,504 |
| Value of interest in common/collective trusts at end of year | 2019-12-31 | $1,755,294,605 |
| Value of interest in common/collective trusts at beginning of year | 2019-12-31 | $1,774,109,628 |
| Net investment gain or loss from common/collective trusts | 2019-12-31 | $69,536,056 |
| 2018 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $0 |
| Total transfer of assets to this plan | 2018-12-31 | $441,624,898 |
| Total transfer of assets from this plan | 2018-12-31 | $82,854,771 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $1,739,597 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $12,404,010 |
| Total income from all sources (including contributions) | 2018-12-31 | $28,811,056 |
| Total loss/gain on sale of assets | 2018-12-31 | $0 |
| Total of all expenses incurred | 2018-12-31 | $33,200 |
| 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 | $1,775,847,101 |
| Value of total assets at beginning of year | 2018-12-31 | $1,398,963,531 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $33,200 |
| Total interest from all sources | 2018-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $7,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $1,737,473 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $12,401,885 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $1,739,597 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $12,404,010 |
| Administrative expenses (other) incurred | 2018-12-31 | $25,700 |
| Value of net income/loss | 2018-12-31 | $28,777,856 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $1,774,107,504 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $1,386,559,521 |
| Income. Interest from US Government securities | 2018-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2018-12-31 | $1,774,109,628 |
| Value of interest in common/collective trusts at beginning of year | 2018-12-31 | $1,386,561,646 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2018-12-31 | $28,811,056 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $0 |
| 2017 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2017-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2017-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $0 |
| Total transfer of assets to this plan | 2017-12-31 | $130,042,521 |
| Total transfer of assets from this plan | 2017-12-31 | $135,685,245 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $12,404,010 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $3,131,145 |
| Expenses. Interest paid | 2017-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2017-12-31 | $0 |
| Total income from all sources (including contributions) | 2017-12-31 | $11,815,702 |
| Total loss/gain on sale of assets | 2017-12-31 | $0 |
| Total of all expenses incurred | 2017-12-31 | $33,200 |
| 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 | $1,398,963,531 |
| Value of total assets at beginning of year | 2017-12-31 | $1,383,550,888 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $33,200 |
| Total interest from all sources | 2017-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $0 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $7,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $12,401,885 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $3,129,029 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $12,404,010 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $3,131,145 |
| Other income not declared elsewhere | 2017-12-31 | $0 |
| Administrative expenses (other) incurred | 2017-12-31 | $25,700 |
| Value of net income/loss | 2017-12-31 | $11,782,502 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $1,386,559,521 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $1,380,419,743 |
| Investment advisory and management fees | 2017-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2017-12-31 | $0 |
| Interest earned on other investments | 2017-12-31 | $0 |
| Income. Interest from US Government securities | 2017-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2017-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2017-12-31 | $1,386,561,646 |
| Value of interest in common/collective trusts at beginning of year | 2017-12-31 | $1,380,421,859 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $0 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2017-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2017-12-31 | $11,815,702 |
| Income. Dividends from preferred stock | 2017-12-31 | $0 |
| Income. Dividends from common stock | 2017-12-31 | $0 |
| Contract administrator fees | 2017-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $0 |
| 2016 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2016 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $0 |
| Total transfer of assets to this plan | 2016-12-31 | $21,163,791 |
| Total transfer of assets from this plan | 2016-12-31 | $30,203,554 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $3,131,145 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $6,502,676 |
| Total income from all sources (including contributions) | 2016-12-31 | $17,448,609 |
| Total loss/gain on sale of assets | 2016-12-31 | $0 |
| Total of all expenses incurred | 2016-12-31 | $31,200 |
| 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 | $1,383,550,888 |
| Value of total assets at beginning of year | 2016-12-31 | $1,378,544,773 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $31,200 |
| Total interest from all sources | 2016-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $5,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $3,129,029 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $6,500,552 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $3,131,145 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $6,502,676 |
| Administrative expenses (other) incurred | 2016-12-31 | $25,700 |
| Value of net income/loss | 2016-12-31 | $17,417,409 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $1,380,419,743 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $1,372,042,097 |
| Value of interest in common/collective trusts at end of year | 2016-12-31 | $1,380,421,859 |
| Value of interest in common/collective trusts at beginning of year | 2016-12-31 | $1,372,044,221 |
| Net investment gain or loss from common/collective trusts | 2016-12-31 | $17,448,609 |
| 2015 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2015-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $0 |
| Total transfer of assets to this plan | 2015-12-31 | $444,825,466 |
| Total transfer of assets from this plan | 2015-12-31 | $51,991,940 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $6,502,676 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $2,123 |
| Total income from all sources (including contributions) | 2015-12-31 | $6,428,376 |
| Total loss/gain on sale of assets | 2015-12-31 | $0 |
| Total of all expenses incurred | 2015-12-31 | $31,200 |
| 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 | $1,378,544,773 |
| Value of total assets at beginning of year | 2015-12-31 | $972,813,518 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $31,200 |
| Total interest from all sources | 2015-12-31 | $0 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $0 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2015-12-31 | $0 |
| Administrative expenses professional fees incurred | 2015-12-31 | $5,500 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $6,500,552 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $6,502,676 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $2,123 |
| Administrative expenses (other) incurred | 2015-12-31 | $25,700 |
| Value of net income/loss | 2015-12-31 | $6,397,176 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $1,372,042,097 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $972,811,395 |
| Investment advisory and management fees | 2015-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2015-12-31 | $0 |
| Interest earned on other investments | 2015-12-31 | $0 |
| Income. Interest from US Government securities | 2015-12-31 | $0 |
| Income. Interest from corporate debt instruments | 2015-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2015-12-31 | $1,372,044,221 |
| Value of interest in common/collective trusts at beginning of year | 2015-12-31 | $972,813,518 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2015-12-31 | $6,428,376 |
| Income. Dividends from preferred stock | 2015-12-31 | $0 |
| Income. Dividends from common stock | 2015-12-31 | $0 |
| Contract administrator fees | 2015-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $0 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $0 |
| 2014 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2014 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $0 |
| Total transfer of assets to this plan | 2014-12-31 | $476,184,543 |
| Total transfer of assets from this plan | 2014-12-31 | $89,060,917 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $2,123 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $2,124 |
| Total income from all sources (including contributions) | 2014-12-31 | $5,982,273 |
| Total loss/gain on sale of assets | 2014-12-31 | $0 |
| Total of all expenses incurred | 2014-12-31 | $31,200 |
| 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 | $972,813,518 |
| Value of total assets at beginning of year | 2014-12-31 | $579,738,820 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $31,200 |
| 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 | $5,500 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $2,123 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $2,124 |
| Administrative expenses (other) incurred | 2014-12-31 | $25,700 |
| Value of net income/loss | 2014-12-31 | $5,951,073 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $972,811,395 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $579,736,696 |
| Value of interest in common/collective trusts at end of year | 2014-12-31 | $972,813,518 |
| Value of interest in common/collective trusts at beginning of year | 2014-12-31 | $579,738,820 |
| Net investment gain or loss from common/collective trusts | 2014-12-31 | $5,982,273 |
| 2013 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2013 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $0 |
| Total transfer of assets to this plan | 2013-12-31 | $497,013,046 |
| Total transfer of assets from this plan | 2013-12-31 | $42,892,850 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $2,124 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $2,116 |
| Total income from all sources (including contributions) | 2013-12-31 | $2,658,023 |
| Total loss/gain on sale of assets | 2013-12-31 | $0 |
| Total of all expenses incurred | 2013-12-31 | $31,200 |
| 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 | $579,738,820 |
| Value of total assets at beginning of year | 2013-12-31 | $122,991,793 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $31,200 |
| 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 | $5,500 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $2,124 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $2,116 |
| Administrative expenses (other) incurred | 2013-12-31 | $25,700 |
| Value of net income/loss | 2013-12-31 | $2,626,823 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $579,736,696 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $122,989,677 |
| Value of interest in common/collective trusts at end of year | 2013-12-31 | $579,738,820 |
| Value of interest in common/collective trusts at beginning of year | 2013-12-31 | $122,991,793 |
| Net investment gain or loss from common/collective trusts | 2013-12-31 | $2,658,023 |
| 2012 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2012 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $0 |
| Total transfer of assets to this plan | 2012-12-31 | $38,812,893 |
| Total transfer of assets from this plan | 2012-12-31 | $23,238,035 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $2,116 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $2,125 |
| Total income from all sources (including contributions) | 2012-12-31 | $1,437,862 |
| Total loss/gain on sale of assets | 2012-12-31 | $0 |
| Total of all expenses incurred | 2012-12-31 | $31,200 |
| 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 | $122,991,793 |
| Value of total assets at beginning of year | 2012-12-31 | $106,010,282 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $31,200 |
| 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 | $5,500 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $2,116 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $2,125 |
| Administrative expenses (other) incurred | 2012-12-31 | $25,700 |
| Value of net income/loss | 2012-12-31 | $1,406,662 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $122,989,677 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $106,008,157 |
| Value of interest in common/collective trusts at end of year | 2012-12-31 | $122,991,793 |
| Value of interest in common/collective trusts at beginning of year | 2012-12-31 | $106,010,282 |
| Net investment gain or loss from common/collective trusts | 2012-12-31 | $1,437,862 |
| 2011 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2011 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $0 |
| Total transfer of assets to this plan | 2011-12-31 | $4,998,615 |
| Total transfer of assets from this plan | 2011-12-31 | $500,000 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $2,125 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $8,623 |
| Total income from all sources (including contributions) | 2011-12-31 | $1,567,037 |
| Total loss/gain on sale of assets | 2011-12-31 | $0 |
| Total of all expenses incurred | 2011-12-31 | $31,200 |
| 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 | $106,010,282 |
| Value of total assets at beginning of year | 2011-12-31 | $99,982,328 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $31,200 |
| 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 | $5,500 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $2,125 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $8,623 |
| Administrative expenses (other) incurred | 2011-12-31 | $25,700 |
| Value of net income/loss | 2011-12-31 | $1,535,837 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $106,008,157 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $99,973,705 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $106,010,282 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $99,982,328 |
| Net investment gain or loss from common/collective trusts | 2011-12-31 | $1,567,037 |
| 2010 : SSGA U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING FUND 2010 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $0 |
| Total transfer of assets to this plan | 2010-12-31 | $99,975,247 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $8,623 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $0 |
| Total income from all sources (including contributions) | 2010-12-31 | $7,081 |
| Total loss/gain on sale of assets | 2010-12-31 | $0 |
| Total of all expenses incurred | 2010-12-31 | $8,623 |
| 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 | $99,982,328 |
| Value of total assets at beginning of year | 2010-12-31 | $0 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $8,623 |
| 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 | $6,500 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $8,623 |
| Administrative expenses (other) incurred | 2010-12-31 | $2,123 |
| Value of net income/loss | 2010-12-31 | $-1,542 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $99,973,705 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $0 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $99,982,328 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $7,081 |
