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Equity, Income Tax Effects on Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Before-Tax Amount |  |  |
Other comprehensive income before income tax expense (benefit) | $ 329 | $ 83 | $ 107
Tax Expense (Benefit) |  |  |
Income tax expense (benefit) related to items of other comprehensive income | 82 | (16) | (48)
Net Amount |  |  |
Other comprehensive income | 247 | 99 | 155
Foreign Currency Translation Adjustment [Member] |  |  |
Before-Tax Amount |  |  |
Other comprehensive income (loss), before reclassifications, before tax | (47) | 161 | 349
Tax Expense (Benefit) |  |  |
Other comprehensive income, before reclassifications, tax expense (benefit) | 0 | 0 | 0
Net Amount |  |  |
Other comprehensive income, before reclassifications, net of tax | (47) | 161 | 349
Net Gain (Loss) on Pension and Other Postretirement Benefits [Member] |  |  |
Before-Tax Amount |  |  |
Effect of exchange rates, before tax | 2 |  |
Other comprehensive income before income tax expense (benefit) | 378 | (80) | (234)
Tax Expense (Benefit) |  |  |
Effect of exchange rates, tax expense (benefit) | 0 |  |
Income tax expense (benefit) related to items of other comprehensive income | 82 | (15) | (47)
Net Amount |  |  |
Effect of exchange rates, net of tax | 2 |  |
Other comprehensive income | 296 | (65) | (187)
Net Actuarial Gain (Loss) [Member] |  |  |
Before-Tax Amount |  |  |
Other comprehensive income (loss), before reclassifications, before tax | 317 | (128) | (245)
Reclassification from accumulated other comprehensive loss, current period, before tax | 80 | 74 | 38
Tax Expense (Benefit) |  |  |
Other comprehensive income, before reclassifications, tax expense (benefit) | 69 | (26) | (54)
Reclassification from accumulated other comprehensive loss, current period, tax expense (benefit) | 18 | 17 | 9
Net Amount |  |  |
Other comprehensive income, before reclassifications, net of tax | 248 | (102) | (191)
Reclassification from accumulated other comprehensive loss, current period, net of tax | 62 | 57 | 29
Prior Service Cost (Credit) [Member] |  |  |
Before-Tax Amount |  |  |
Other comprehensive income (loss), before reclassifications, before tax | (4) | (5) | (3)
Reclassification from accumulated other comprehensive loss, current period, before tax | (25) | (26) | (28)
Tax Expense (Benefit) |  |  |
Other comprehensive income, before reclassifications, tax expense (benefit) | (1) | (1) | (1)
Reclassification from accumulated other comprehensive loss, current period, tax expense (benefit) | (6) | (6) | (6)
Net Amount |  |  |
Other comprehensive income, before reclassifications, net of tax | (3) | (4) | (2)
Reclassification from accumulated other comprehensive loss, current period, net of tax | (19) | (20) | (22)
Miscellaneous Loss [Member] |  |  |
Before-Tax Amount |  |  |
Other comprehensive income (loss), before reclassifications, before tax |  |  | 0
Tax Expense (Benefit) |  |  |
Other comprehensive income, before reclassifications, tax expense (benefit) |  |  | 4
Net Amount |  |  |
Other comprehensive income, before reclassifications, net of tax |  |  | (4)
Curtailment and Settlement Loss [Member] |  |  |
Before-Tax Amount |  |  |
Reclassification from accumulated other comprehensive loss, current period, before tax | 8 | 5 | 4
Tax Expense (Benefit) |  |  |
Reclassification from accumulated other comprehensive loss, current period, tax expense (benefit) | 2 | 1 | 1
Net Amount |  |  |
Reclassification from accumulated other comprehensive loss, current period, net of tax | 6 | 4 | 3
Net Gain (Loss) from Derivative Instruments Designated and Qualifying as Cash Flow Hedges [Member] |  |  |
Before-Tax Amount |  |  |
Other comprehensive income (loss), before reclassifications, before tax | (48) | 36 | (6)
Reclassification from accumulated other comprehensive loss, current period, before tax | 46 | (34) | (2)
Other comprehensive income before income tax expense (benefit) | (2) | 2 | (8)
Tax Expense (Benefit) |  |  |
Other comprehensive income, before reclassifications, tax expense (benefit) | (5) | 3 | (1)
Reclassification from accumulated other comprehensive loss, current period, tax expense (benefit) | 5 | (4) | 0
Income tax expense (benefit) related to items of other comprehensive income | 0 | (1) | (1)
Net Amount |  |  |
Other comprehensive income, before reclassifications, net of tax | (43) | 33 | (5)
Reclassification from accumulated other comprehensive loss, current period, net of tax | 41 | (30) | (2)
Other comprehensive income | $ (2) | $ 3 | $ (7)

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