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Stockholders' Equity Reclassifications out of AOCI (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Amounts Reclassified from Accumulated Other Comprehensive Loss |  | $ (12) | $ (146)
Other Benefit Plans |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Amortization of Prior Service Benefit | [1],[2] | 0 | (230)
Pension Plan |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Amounts Reclassified from Accumulated Other Comprehensive Loss |  | 0 | 12
Other Benefit Plans |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Amounts Reclassified from Accumulated Other Comprehensive Loss |  | 0 | (158)
Derivative Instruments |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax | [3] | (15) | (5)
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax | [4] | 3 | (1)
Amounts Reclassified from Accumulated Other Comprehensive Loss |  | (12) | (6)
Actuarial (Gains) Losses | Pension Plan |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax | [1],[2] | 1 | 14
Actuarial (Gains) Losses | Other Benefit Plans |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax | [1],[2] | 0 | 23
Settlement Loss | Pension Plan |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax | [1],[2] | 0 | 1
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Pension Plan |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax |  | 0 | 15
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax | [4] | 0 | (3)
Amounts Reclassified from Accumulated Other Comprehensive Loss |  | 0 | 12
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Other Benefit Plans |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax |  | 0 | (207)
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax | [4] | 0 | 49
Amounts Reclassified from Accumulated Other Comprehensive Loss |  | 0 | (158)
Unrealized loss on investments |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax | [4] | 0 | 0
Amounts Reclassified from Accumulated Other Comprehensive Loss | [1] | 0 | 6
Prior Service Benefit | Pension Plan |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax |  | $ (1) | $ 0
[1] | Reflected in other income - net in the interim Consolidated Statements of Operations.
[2] | These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit credit of the company's pension and other benefit plans. See Note 14 - Pension Plans and Other Post Employment Benefits, for additional information.
[3] | Reflected in cost of goods sold in the interim Consolidated Statements of Operations.
[4] | Reflected in provision for (benefit from) income taxes from continuing operations in the interim Consolidated Statements of Operations.

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