XML 68 R47.htm IDEA: XBRL DOCUMENT
v3.20.4

Pensions And Other Postretirement Benefits (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items] |
Changes in Benefit Obligations, Plan Assets and Funded Status |
| Year Ended December 31, 2020 |  | Year Ended December 31, 2019
| Pension Benefits |  | Global OPEB Plans |  | Pension Benefits |  | Global OPEB Plans
| U.S. |  | Non-U.S. |  |  | U.S. |  | Non-U.S. |
Change in benefit obligations |  |  |  |  |  |  |  |  |  |  |
Beginning benefit obligation | $ | 64,684 |  |  | $ | 21,398 |  |  | $ | 6,304 |  |  | $ | 61,190 |  |  | $ | 19,904 |  |  | $ | 5,744 |
Service cost | 177 |  |  | 133 |  |  | 19 |  |  | 179 |  |  | 120 |  |  | 17 |
Interest cost | 1,716 |  |  | 362 |  |  | 173 |  |  | 2,264 |  |  | 456 |  |  | 220 |
Actuarial losses | 4,757 |  |  | 1,506 |  |  | 551 |  |  | 6,444 |  |  | 1,653 |  |  | 641 |
Benefits paid | (4,600) |  |  | (1,132) |  |  | (408) |  |  | (4,753) |  |  | (1,234) |  |  | (395) |
Foreign currency translation adjustments | — |  |  | 870 |  |  | (3) |  |  | — |  |  | 561 |  |  | 54 |
Curtailments, settlements and other | (266) |  |  | (2,330) |  |  | 20 |  |  | (640) |  |  | (62) |  |  | 23 |
Ending benefit obligation | 66,468 |  |  | 20,807 |  |  | 6,656 |  |  | 64,684 |  |  | 21,398 |  |  | 6,304 |
Change in plan assets |  |  |  |  |  |  |  |  |  |  |
Beginning fair value of plan assets | 59,239 |  |  | 14,961 |  |  | — |  |  | 56,102 |  |  | 13,528 |  |  | — |
Actual return on plan assets | 6,635 |  |  | 1,573 |  |  | — |  |  | 8,454 |  |  | 1,669 |  |  | — |
Employer contributions | 68 |  |  | 396 |  |  | 387 |  |  | 83 |  |  | 532 |  |  | 370 |
Benefits paid | (4,600) |  |  | (1,132) |  |  | (408) |  |  | (4,753) |  |  | (1,234) |  |  | (395) |
Foreign currency translation adjustments | — |  |  | 389 |  |  | — |  |  | — |  |  | 668 |  |  | — |
Settlements and other | (265) |  |  | (2,341) |  |  | 21 |  |  | (647) |  |  | (202) |  |  | 25 |
Ending fair value of plan assets | 61,077 |  |  | 13,846 |  |  | — |  |  | 59,239 |  |  | 14,961 |  |  | — |
Ending funded status | $ | (5,391) |  |  | $ | (6,961) |  |  | $ | (6,656) |  |  | $ | (5,445) |  |  | $ | (6,437) |  |  | $ | (6,304) |
Amounts recorded in the consolidated balance sheets |  |  |  |  |  |  |  |  |  |  |
Non-current assets | $ | — |  |  | $ | 980 |  |  | $ | — |  |  | $ | — |  |  | $ | 698 |  |  | $ | — |
Current liabilities | (66) |  |  | (364) |  |  | (379) |  |  | (68) |  |  | (342) |  |  | (369) |
Non-current liabilities | (5,325) |  |  | (7,577) |  |  | (6,277) |  |  | (5,377) |  |  | (6,793) |  |  | (5,935) |
Net amount recorded | $ | (5,391) |  |  | $ | (6,961) |  |  | $ | (6,656) |  |  | $ | (5,445) |  |  | $ | (6,437) |  |  | $ | (6,304) |
Amounts recorded in Accumulated other comprehensive loss |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss | $ | (3,256) |  |  | $ | (5,123) |  |  | $ | (1,823) |  |  | $ | (1,980) |  |  | $ | (4,688) |  |  | $ | (1,364) |
Net prior service (cost) credit | 11 |  |  | (60) |  |  | 20 |  |  | 14 |  |  | (78) |  |  | 27 |
Total recorded in Accumulated other comprehensive loss | $ | (3,245) |  |  | $ | (5,183) |  |  | $ | (1,803) |  |  | $ | (1,966) |  |  | $ | (4,766) |  |  | $ | (1,337) |
Schedule of amounts recorded in the consolidated balance sheets |
| Year Ended December 31, 2020 |  | Year Ended December 31, 2019
| Pension Benefits |  | Global OPEB Plans |  | Pension Benefits |  | Global OPEB Plans
| U.S. |  | Non-U.S. |  |  | U.S. |  | Non-U.S. |
Change in benefit obligations |  |  |  |  |  |  |  |  |  |  |
Beginning benefit obligation | $ | 64,684 |  |  | $ | 21,398 |  |  | $ | 6,304 |  |  | $ | 61,190 |  |  | $ | 19,904 |  |  | $ | 5,744 |
Service cost | 177 |  |  | 133 |  |  | 19 |  |  | 179 |  |  | 120 |  |  | 17 |
Interest cost | 1,716 |  |  | 362 |  |  | 173 |  |  | 2,264 |  |  | 456 |  |  | 220 |
Actuarial losses | 4,757 |  |  | 1,506 |  |  | 551 |  |  | 6,444 |  |  | 1,653 |  |  | 641 |
Benefits paid | (4,600) |  |  | (1,132) |  |  | (408) |  |  | (4,753) |  |  | (1,234) |  |  | (395) |
Foreign currency translation adjustments | — |  |  | 870 |  |  | (3) |  |  | — |  |  | 561 |  |  | 54 |
Curtailments, settlements and other | (266) |  |  | (2,330) |  |  | 20 |  |  | (640) |  |  | (62) |  |  | 23 |
Ending benefit obligation | 66,468 |  |  | 20,807 |  |  | 6,656 |  |  | 64,684 |  |  | 21,398 |  |  | 6,304 |
Change in plan assets |  |  |  |  |  |  |  |  |  |  |
Beginning fair value of plan assets | 59,239 |  |  | 14,961 |  |  | — |  |  | 56,102 |  |  | 13,528 |  |  | — |
Actual return on plan assets | 6,635 |  |  | 1,573 |  |  | — |  |  | 8,454 |  |  | 1,669 |  |  | — |
Employer contributions | 68 |  |  | 396 |  |  | 387 |  |  | 83 |  |  | 532 |  |  | 370 |
Benefits paid | (4,600) |  |  | (1,132) |  |  | (408) |  |  | (4,753) |  |  | (1,234) |  |  | (395) |
Foreign currency translation adjustments | — |  |  | 389 |  |  | — |  |  | — |  |  | 668 |  |  | — |
Settlements and other | (265) |  |  | (2,341) |  |  | 21 |  |  | (647) |  |  | (202) |  |  | 25 |
Ending fair value of plan assets | 61,077 |  |  | 13,846 |  |  | — |  |  | 59,239 |  |  | 14,961 |  |  | — |
Ending funded status | $ | (5,391) |  |  | $ | (6,961) |  |  | $ | (6,656) |  |  | $ | (5,445) |  |  | $ | (6,437) |  |  | $ | (6,304) |
Amounts recorded in the consolidated balance sheets |  |  |  |  |  |  |  |  |  |  |
Non-current assets | $ | — |  |  | $ | 980 |  |  | $ | — |  |  | $ | — |  |  | $ | 698 |  |  | $ | — |
Current liabilities | (66) |  |  | (364) |  |  | (379) |  |  | (68) |  |  | (342) |  |  | (369) |
Non-current liabilities | (5,325) |  |  | (7,577) |  |  | (6,277) |  |  | (5,377) |  |  | (6,793) |  |  | (5,935) |
Net amount recorded | $ | (5,391) |  |  | $ | (6,961) |  |  | $ | (6,656) |  |  | $ | (5,445) |  |  | $ | (6,437) |  |  | $ | (6,304) |
Amounts recorded in Accumulated other comprehensive loss |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss | $ | (3,256) |  |  | $ | (5,123) |  |  | $ | (1,823) |  |  | $ | (1,980) |  |  | $ | (4,688) |  |  | $ | (1,364) |
Net prior service (cost) credit | 11 |  |  | (60) |  |  | 20 |  |  | 14 |  |  | (78) |  |  | 27 |
Total recorded in Accumulated other comprehensive loss | $ | (3,245) |  |  | $ | (5,183) |  |  | $ | (1,803) |  |  | $ | (1,966) |  |  | $ | (4,766) |  |  | $ | (1,337) |
Schedule of Projected Benefit Obligations in Excess of Fair Value of Plan Assets | The following table summarizes the total accumulated benefit obligations (ABO), the ABO and fair value of plan assets for defined benefit pension plans with ABO in excess of plan assets, and the projected benefit obligation (PBO) and fair value of plan assets for defined benefit pension plans with PBO in excess of plan assets:
| December 31, 2020 |  | December 31, 2019
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S.
ABO | $ | 66,448 |  |  | $ | 20,721 |  |  | $ | 64,669 |  |  | $ | 21,319 |
Plans with ABO in excess of plan assets |  |  |  |  |  |  |
ABO | $ | 66,448 |  |  | $ | 12,042 |  |  | $ | 64,669 |  |  | $ | 10,996 |
Fair value of plan assets | $ | 61,077 |  |  | $ | 4,185 |  |  | $ | 59,239 |  |  | $ | 3,940 |
Plans with PBO in excess of plan assets |  |  |  |  |  |  |
PBO | $ | 66,468 |  |  | $ | 12,128 |  |  | $ | 64,684 |  |  | $ | 11,079 |
Fair value of plan assets | $ | 61,077 |  |  | $ | 4,186 |  |  | $ | 59,239 |  |  | $ | 3,940 |
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets | The following table summarizes the total accumulated benefit obligations (ABO), the ABO and fair value of plan assets for defined benefit pension plans with ABO in excess of plan assets, and the projected benefit obligation (PBO) and fair value of plan assets for defined benefit pension plans with PBO in excess of plan assets:
| December 31, 2020 |  | December 31, 2019
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S.
ABO | $ | 66,448 |  |  | $ | 20,721 |  |  | $ | 64,669 |  |  | $ | 21,319 |
Plans with ABO in excess of plan assets |  |  |  |  |  |  |
ABO | $ | 66,448 |  |  | $ | 12,042 |  |  | $ | 64,669 |  |  | $ | 10,996 |
Fair value of plan assets | $ | 61,077 |  |  | $ | 4,185 |  |  | $ | 59,239 |  |  | $ | 3,940 |
Plans with PBO in excess of plan assets |  |  |  |  |  |  |
PBO | $ | 66,468 |  |  | $ | 12,128 |  |  | $ | 64,684 |  |  | $ | 11,079 |
Fair value of plan assets | $ | 61,077 |  |  | $ | 4,186 |  |  | $ | 59,239 |  |  | $ | 3,940 |
Schedule of Net Periodic Pension and OPEB expense | The following table summarizes the components of net periodic pension and OPEB expense along with the assumptions used to determine benefit obligations:
| Year Ended December 31, 2020 |  | Year Ended December 31, 2019 |  | Year Ended December 31, 2018
| Pension Benefits |  | Global OPEB Plans |  | Pension Benefits |  | Global OPEB Plans |  | Pension Benefits |  | Global OPEB Plans
| U.S. |  | Non-U.S. |  |  | U.S. |  | Non-U.S. |  |  | U.S. |  | Non-U.S. |
Components of expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 251 |  |  | $ | 145 |  |  | $ | 19 |  |  | $ | 393 |  |  | $ | 132 |  |  | $ | 17 |  |  | $ | 330 |  |  | $ | 163 |  |  | $ | 20 |
Interest cost | 1,716 |  |  | 362 |  |  | 173 |  |  | 2,264 |  |  | 456 |  |  | 220 |  |  | 2,050 |  |  | 464 |  |  | 195 |
Expected return on plan assets | (3,267) |  |  | (675) |  |  | — |  |  | (3,483) |  |  | (786) |  |  | — |  |  | (3,890) |  |  | (825) |  |  | — |
Amortization of net actuarial losses | 16 |  |  | 171 |  |  | 74 |  |  | 11 |  |  | 122 |  |  | 30 |  |  | 10 |  |  | 144 |  |  | 54 |
Curtailments, settlements and other | 17 |  |  | 241 |  |  | (8) |  |  | 21 |  |  | 142 |  |  | (23) |  |  | (19) |  |  | 43 |  |  | (19) |
Net periodic pension and OPEB (income) expense | $ | (1,267) |  |  | $ | 244 |  |  | $ | 258 |  |  | $ | (794) |  |  | $ | 66 |  |  | $ | 244 |  |  | $ | (1,519) |  |  | $ | (11) |  |  | $ | 250 |
Weighted-average assumptions used to determine benefit obligations(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.37 | % |  | 1.62 | % |  | 2.53 | % |  | 3.20 | % |  | 2.16 | % |  | 3.24 | % |  | 4.22 | % |  | 2.86 | % |  | 4.19 | %
Weighted-average assumptions used to determine net expense(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.84 | % |  | 2.80 | % |  | 3.00 | % |  | 3.92 | % |  | 3.36 | % |  | 4.07 | % |  | 3.19 | % |  | 2.99 | % |  | 3.29 | %
Expected rate of return on plan assets | 5.88 | % |  | 4.96 | % |  | N/A |  | 6.37 | % |  | 5.76 | % |  | N/A |  | 6.61 | % |  | 6.09 | % |  | N/A
_________ (a) The rate of compensation increase and the cash balance interest crediting rates do not have a significant effect on our U.S. pension and OPEB plans.
Schedule of Assumptions Used | The following table summarizes the components of net periodic pension and OPEB expense along with the assumptions used to determine benefit obligations:
| Year Ended December 31, 2020 |  | Year Ended December 31, 2019 |  | Year Ended December 31, 2018
| Pension Benefits |  | Global OPEB Plans |  | Pension Benefits |  | Global OPEB Plans |  | Pension Benefits |  | Global OPEB Plans
| U.S. |  | Non-U.S. |  |  | U.S. |  | Non-U.S. |  |  | U.S. |  | Non-U.S. |
Components of expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 251 |  |  | $ | 145 |  |  | $ | 19 |  |  | $ | 393 |  |  | $ | 132 |  |  | $ | 17 |  |  | $ | 330 |  |  | $ | 163 |  |  | $ | 20 |
Interest cost | 1,716 |  |  | 362 |  |  | 173 |  |  | 2,264 |  |  | 456 |  |  | 220 |  |  | 2,050 |  |  | 464 |  |  | 195 |
Expected return on plan assets | (3,267) |  |  | (675) |  |  | — |  |  | (3,483) |  |  | (786) |  |  | — |  |  | (3,890) |  |  | (825) |  |  | — |
Amortization of net actuarial losses | 16 |  |  | 171 |  |  | 74 |  |  | 11 |  |  | 122 |  |  | 30 |  |  | 10 |  |  | 144 |  |  | 54 |
Curtailments, settlements and other | 17 |  |  | 241 |  |  | (8) |  |  | 21 |  |  | 142 |  |  | (23) |  |  | (19) |  |  | 43 |  |  | (19) |
Net periodic pension and OPEB (income) expense | $ | (1,267) |  |  | $ | 244 |  |  | $ | 258 |  |  | $ | (794) |  |  | $ | 66 |  |  | $ | 244 |  |  | $ | (1,519) |  |  | $ | (11) |  |  | $ | 250 |
Weighted-average assumptions used to determine benefit obligations(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.37 | % |  | 1.62 | % |  | 2.53 | % |  | 3.20 | % |  | 2.16 | % |  | 3.24 | % |  | 4.22 | % |  | 2.86 | % |  | 4.19 | %
Weighted-average assumptions used to determine net expense(a) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.84 | % |  | 2.80 | % |  | 3.00 | % |  | 3.92 | % |  | 3.36 | % |  | 4.07 | % |  | 3.19 | % |  | 2.99 | % |  | 3.29 | %
Expected rate of return on plan assets | 5.88 | % |  | 4.96 | % |  | N/A |  | 6.37 | % |  | 5.76 | % |  | N/A |  | 6.61 | % |  | 6.09 | % |  | N/A
_________ (a) The rate of compensation increase and the cash balance interest crediting rates do not have a significant effect on our U.S. pension and OPEB plans.
Schedule of Expected Net Benefit Payments | The following table summarizes net benefit payments expected to be paid in the future, which include assumptions related to estimated future employee service:
| Pension Benefits |  | Global OPEB Plans
| U.S. Plans |  | Non-U.S. Plans |
2021 | $ | 4,821 |  |  | $ | 1,172 |  |  | $ | 379 |
2022 | $ | 4,614 |  |  | $ | 1,070 |  |  | $ | 374 |
2023 | $ | 4,495 |  |  | $ | 1,038 |  |  | $ | 369 |
2024 | $ | 4,387 |  |  | $ | 1,015 |  |  | $ | 364 |
2025 | $ | 4,278 |  |  | $ | 1,000 |  |  | $ | 361 |
2026 - 2030 | $ | 19,469 |  |  | $ | 4,673 |  |  | $ | 1,761 |
Pension Plan |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of contributions to defined benefit pension plans | The following table summarizes contributions made to the defined benefit pension plans:
| Years Ended December 31,
| 2020 |  | 2019 |  | 2018
U.S. hourly and salaried | $ | 68 |  |  | $ | 83 |  |  | $ | 76 |
Non-U.S. | 396 |  |  | 532 |  |  | 1,624 |
Total | $ | 464 |  |  | $ | 615 |  |  | $ | 1,700 |
Schedules of Fair Value of Plan Assets by Asset Class and Target Allocations | The following table summarizes the target allocations by asset category for U.S. and non-U.S. defined benefit pension plans:
| December 31, 2020 |  | December 31, 2019
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S.
Equity | 12 | % |  | 16 | % |  | 12 | % |  | 14 | %
Debt | 64 | % |  | 66 | % |  | 64 | % |  | 67 | %
Other(a) | 24 | % |  | 18 | % |  | 24 | % |  | 19 | %
Total | 100 | % |  | 100 | % |  | 100 | % |  | 100 | %
__________ (a) Primarily includes private equity, real estate and absolute return strategies which mainly consist of hedge funds. Assets and Fair Value Measurements The following tables summarize the fair value of U.S. and non-U.S. defined benefit pension plan assets by asset class:
| December 31, 2020 |  | December 31, 2019
| Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
U.S. Pension Plan Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common and preferred stocks | $ | 7,429 |  |  | $ | — |  |  | $ | 1 |  |  | $ | 7,430 |  |  | $ | 6,232 |  |  | $ | 19 |  |  | $ | 1 |  |  | $ | 6,252 |
Government and agency debt securities(a) | — |  |  | 13,231 |  |  | — |  |  | 13,231 |  |  | — |  |  | 13,843 |  |  | — |  |  | 13,843 |
Corporate and other debt securities | — |  |  | 26,475 |  |  | — |  |  | 26,475 |  |  | — |  |  | 24,809 |  |  | — |  |  | 24,809 |
Other investments, net(b)(c) | (834) |  |  | (8) |  |  | 427 |  |  | (415) |  |  | (47) |  |  | 25 |  |  | 401 |  |  | 379 |
Net plan assets subject to leveling | $ | 6,595 |  |  | $ | 39,698 |  |  | $ | 428 |  |  | 46,721 |  |  | $ | 6,185 |  |  | $ | 38,696 |  |  | $ | 402 |  |  | 45,283 |
Plan assets measured at net asset value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment funds |  |  |  |  |  |  | 7,534 |  |  |  |  |  |  |  |  | 7,031 |
Private equity and debt investments |  |  |  |  |  |  | 3,137 |  |  |  |  |  |  |  |  | 2,951 |
Real estate investments |  |  |  |  |  |  | 3,061 |  |  |  |  |  |  |  |  | 3,484 |
Total plan assets measured at net asset value |  |  |  |  |  |  | 13,732 |  |  |  |  |  |  |  |  | 13,466 |
Other plan assets, net(d) |  |  |  |  |  |  | 624 |  |  |  |  |  |  |  |  | 490 |
Net plan assets |  |  |  |  |  |  | $ | 61,077 |  |  |  |  |  |  |  |  | $ | 59,239 |
| December 31, 2020 |  | December 31, 2019
| Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Non-U.S. Pension Plan Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common and preferred stocks | $ | 572 |  |  | $ | — |  |  | $ | — |  |  | $ | 572 |  |  | $ | 489 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 490 |
Government and agency debt securities(a) | — |  |  | 3,178 |  |  | — |  |  | 3,178 |  |  | — |  |  | 3,927 |  |  | — |  |  | 3,927 |
Corporate and other debt securities | — |  |  | 2,762 |  |  | — |  |  | 2,762 |  |  | — |  |  | 3,230 |  |  | — |  |  | 3,230 |
Other investments, net(b)(e) | 31 |  |  | (79) |  |  | 127 |  |  | 79 |  |  | (5) |  |  | (107) |  |  | 248 |  |  | 136 |
Net plan assets subject to leveling | $ | 603 |  |  | $ | 5,861 |  |  | $ | 127 |  |  | 6,591 |  |  | $ | 484 |  |  | $ | 7,051 |  |  | $ | 248 |  |  | 7,783 |
Plan assets measured at net asset value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment funds |  |  |  |  |  |  | 5,870 |  |  |  |  |  |  |  |  | 5,608 |
Private equity and debt investments |  |  |  |  |  |  | 489 |  |  |  |  |  |  |  |  | 511 |
Real estate investments |  |  |  |  |  |  | 917 |  |  |  |  |  |  |  |  | 982 |
Total plan assets measured at net asset value |  |  |  |  |  |  | 7,276 |  |  |  |  |  |  |  |  | 7,101 |
Other plan assets (liabilities), net(d) |  |  |  |  |  |  | (21) |  |  |  |  |  |  |  |  | 77 |
Net plan assets |  |  |  |  |  |  | $ | 13,846 |  |  |  |  |  |  |  |  | $ | 14,961 |
__________ (a)Includes U.S. and sovereign government and agency issues. (b)Includes net derivative assets (liabilities). (c)Level 1 Other investments, net includes derivative liabilities approximating $1.0 billion related to equity option and futures contracts at December 31, 2020. (d)Cash held by the plans, net of amounts receivable/payable for unsettled security transactions and payables for investment manager fees, custody fees and other expenses. (e)Level 2 Other investments, net includes Canadian reverse repurchase agreements.

X
- Definition Summarizes contributions to employee benefit plans or direct payments to plan beneficiaries. + References No definition available. + Details
Name: | gm_ScheduleofcontributionstoemployeebenefitplansTableTextBlock
Namespace Prefix: | gm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in the benefit obligation, fair value of plan assets, and funded status of pension plans or other employee benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(b)(c) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ChangesInProjectedBenefitObligationsFairValueOfPlanAssetsAndFundedStatusOfPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of benefit obligation and plan assets of defined benefit plan with accumulated benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 + Details
Name: | us-gaap_ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAmountsRecognizedInBalanceSheetTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of benefit obligation and plan assets for defined benefit pension plan with projected benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 + Details
Name: | us-gaap_ScheduleOfBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |