v3.22.0.1

Pension and Other Postretirement Benefits - Narrative (Details) |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
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Nov. 30, 2020 participant | Jul. 01, 2020 USD ($) participant | May 31, 2020 participant | Apr. 30, 2021 USD ($) plan participant | Dec. 31, 2020 USD ($) segment participant | Jul. 31, 2020 USD ($) | Jun. 30, 2020 USD ($) participant | Jun. 30, 2021 USD ($) plan participant | Sep. 30, 2021 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Aug. 31, 2021 USD ($) | Apr. 01, 2020 USD ($) | Jan. 01, 2020 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retirement plans, accumulated other comprehensive loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000 |
Noncurrent assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65,000,000 |
Noncurrent liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,000,000 |
Weighted average duration of projected plan cash flows under yield curve model |  |  |  |  |  |  |  |  |  |  | 13 years |  |  |  |  |
Cash contributions to pension plans |  |  |  |  |  |  |  |  |  |  | $ 458,000,000 | $ 271,000,000 | $ 3,000,000 |  |  |
Defined contribution plan, cost |  |  |  |  |  |  |  |  |  |  | 39,000,000 | 35,000,000 | 38,000,000 |  |  |
Accrued pension benefits |  |  |  |  | $ 1,343,000,000 |  |  |  |  |  | 717,000,000 | 1,343,000,000 |  |  |  |
Settlements related to employee retirement benefit plans |  |  |  |  |  |  |  |  |  |  | (584,000,000) | (199,000,000) | 0 |  |  |
Forecast | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected long-term rate of return on plan assets |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |
Forecast | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected long-term rate of return on plan assets |  |  |  |  |  |  |  |  |  | 6.00% |  |  |  |  |  |
Funded |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash contributions to pension plans |  |  |  |  |  |  |  |  |  |  | 458,000,000 | 271,000,000 |  |  |  |
U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retirement plans, liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,920,000,000
Retirement plan, current liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 60,000,000
Projected benefit obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,255,000,000
Retirement plans, plan asset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,335,000,000
Retirement plans, accumulated other comprehensive loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,752,000,000
Pension benefits​ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retirement plan, current liability |  |  |  |  | 8,000,000 |  |  |  |  |  | 8,000,000 | 8,000,000 |  |  |  |
Projected benefit obligation |  |  |  |  | 4,081,000,000 |  |  |  |  |  | 2,817,000,000 | 4,081,000,000 | 142,000,000 |  |  |
Retirement plans, plan asset |  |  |  |  | 2,754,000,000 |  |  |  |  |  | 2,124,000,000 | 2,754,000,000 | $ 79,000,000 |  |  |
Noncurrent assets |  |  |  |  | 24,000,000 |  |  |  |  |  | 32,000,000 | 24,000,000 |  |  |  |
Noncurrent liability |  |  |  |  | $ 1,343,000,000 |  |  |  |  |  | 717,000,000 | 1,343,000,000 |  |  |  |
Settlement of plan obligations |  |  |  |  |  |  |  |  |  |  | (1,051,000,000) | (542,000,000) |  |  |  |
Contributions by employer |  |  |  |  |  |  |  |  |  |  | $ 458,000,000 | $ 271,000,000 |  |  |  |
Defined benefit plan, discount rate |  |  |  |  | 2.45% |  |  |  |  |  | 2.76% | 2.45% |  |  |  |
Expected long-term rate of return on plan assets |  |  |  |  |  |  |  |  |  |  | 4.91% | 6.09% | 6.73% |  |  |
Settlements related to employee retirement benefit plans |  |  |  |  |  |  |  |  |  |  | $ (584,000,000) | $ (199,000,000) | $ 0 |  |  |
Pension benefits​ | Funded | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum required contribution to pension plans in 2021 |  |  |  |  |  |  |  |  |  | $ 32,000,000 |  |  |  |  |  |
Pension benefits​ | U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation |  |  |  | $ 3,337,000,000 | $ 3,646,000,000 |  |  |  |  |  | 2,398,000,000 | 3,646,000,000 |  |  |  |
Retirement plans, plan asset |  |  |  | 2,790,000,000 | $ 2,379,000,000 |  |  |  |  |  | $ 1,744,000,000 | $ 2,379,000,000 |  |  |  |
Retirement plans, accumulated other comprehensive loss |  |  |  | $ (117,000,000) |  |  |  |  |  |  |  |  |  |  |  |
Defined benefit plan, number of participants | participant | 30,000 |  |  | 8,400 | 7,000 |  |  | 23,000 |  |  |  |  |  |  |  |
Settlement of plan obligations |  |  |  | $ 995,000,000 | $ 240,000,000 |  |  |  |  |  |  |  |  |  |  |
Defined benefit plan, plan assets, transfer of plan assets |  |  |  | 1,007,000,000 | 245,000,000 |  |  |  |  |  |  |  |  |  |  |
Contributions by employer |  |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Defined benefit plan, discount rate |  |  |  | 3.10% |  |  |  |  |  |  | 2.54% |  |  |  |  |
Settlement charge |  |  |  |  | (140,000,000) |  |  |  |  |  | $ 549,000,000 |  |  |  |  |
Settlement charge, after-tax |  |  |  |  | $ 108,000,000 |  |  |  |  |  | 423,000,000 |  |  |  |  |
Number of plans with obligations transferred to insurance company | segment |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |
Number of defined benefit pension plans | plan |  |  |  | 2 |  |  |  | 2 |  |  |  |  |  |  |  |
Accrued pension benefits |  |  |  | $ 152,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Settlements related to employee retirement benefit plans |  |  |  |  |  |  |  |  |  |  | 549,000,000 |  |  |  |  |
Pension benefits​ | U.S. | Funded | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum required contribution to pension plans in 2021 |  |  |  |  |  |  |  |  |  | $ 22,000,000 |  |  |  |  |  |
Pension benefits​ | U.K. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation |  | $ 240,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retirement plans, plan asset |  | $ 260,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined benefit plan, number of participants | participant |  | 1,050 | 3,350 |  |  |  | 1,800 |  |  |  |  |  |  |  |  |
Settlement of plan obligations |  |  |  |  |  |  | $ 400,000,000 |  |  |  |  |  |  |  |  |
Defined benefit plan, plan assets, transfer of plan assets |  |  |  |  |  |  | $ 460,000,000 |  |  |  | 58,000,000 |  |  |  |  |
Contributions by employer |  |  |  |  |  |  |  | $ 10,000,000 |  |  |  |  |  |  |  |
Defined benefit plan, discount rate |  |  |  |  | 2.05% |  |  | 1.55% |  |  |  | 2.05% |  |  |  |
Net reduction to remaining plan obligations due to remeasurement of plan |  |  |  |  |  |  |  |  | $ 250,000,000 |  |  |  |  |  |  |
Settlement charge |  |  |  |  |  |  |  |  |  |  | (58,000,000) |  |  |  |  |
Settlement charge, after-tax |  |  |  |  |  |  |  |  |  |  | 48,000,000 |  |  |  |  |
Other postretirement benefits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Retirement plan, current liability |  |  |  |  | $ 35,000,000 |  |  |  |  |  | 29,000,000 | $ 35,000,000 |  |  |  |
Projected benefit obligation |  |  |  |  | 514,000,000 |  |  |  |  |  | 440,000,000 | 514,000,000 | 1,000,000 |  |  |
Retirement plans, plan asset |  |  |  |  | 0 |  |  |  |  |  | 0 | 0 | $ 0 |  |  |
Noncurrent assets |  |  |  |  | 0 |  |  |  |  |  | 0 | 0 |  |  |  |
Noncurrent liability |  |  |  |  | $ 479,000,000 |  |  |  |  |  | 411,000,000 | 479,000,000 |  |  |  |
Settlement of plan obligations |  |  |  |  |  |  |  |  |  |  | 0 | 0 |  |  |  |
Contributions by employer |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |  |
Defined benefit plan, discount rate |  |  |  |  | 2.61% |  |  |  |  |  | 2.90% | 2.61% |  |  |  |
Settlements related to employee retirement benefit plans |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |  |
Other postretirement benefits | U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined benefit plan, discount rate |  |  |  |  | 2.61% | 2.54% |  |  |  |  |  | 2.61% | 3.17% | 2.78% |  |
Net decrease to postretirement benefits liability |  |  |  |  |  | $ 7,000,000 |  |  |  |  | $ 34,000,000 |  |  |  |  |
Net decrease to Accumulated other comprehensive loss (after-tax) |  |  |  |  |  | 5,000,000 |  |  |  |  |  |  |  |  |  |
Decrease in estimated annual benefit payments beginning in 2021 |  |  |  |  |  | $ 20,000,000 |  |  |  |  |  |  |  | $ (4,000,000) |  |
Health care cost trend rate assumed for next year |  |  |  |  | 7.70% |  |  |  |  |  | 4.50% | 7.70% |  |  |  |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax |  |  |  |  |  |  |  |  |  |  | $ 26,000,000 |  |  |  |  |
Other postretirement benefits | U.S. | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Health care cost trend rate assumed for next year |  |  |  |  |  |  |  |  |  | 4.50% |  |  |  |  |  |

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- Definition Amount, after tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + 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)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + 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)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920 + Details
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + 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 (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of (increase) decrease to benefit obligation of defined benefit plan from remeasurement due to settlement. Excludes decrease to benefit obligation for settlement payment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of increase (decrease) in benefit obligation of defined benefit plan. + References No definition available. + Details
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