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Retirement Benefits (Reconciliation of Prior Service Credit) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pension Benefits |  |  |
Recognized as component of net benefit (credit) cost: |  |  |
Effect of curtailment | $ 0 | $ (2) | $ 0
Total recognized as component of net benefit (credit) cost | (209) | (240) | (222)
Post-retirement Benefits |  |  |
Recognized as component of net benefit (credit) cost: |  |  |
Effect of curtailment | 0 | 0 | 0
Total recognized as component of net benefit (credit) cost | 2 | 2 | 1
Prior Service Credit (Cost) |  |  |
Recognized as component of net benefit (credit) cost: |  |  |
Reclassification from AOCI, before tax | (2) | (2) | (2)
Non-U.S. | Pension Benefits |  |  |
Recognized as component of net benefit (credit) cost: |  |  |
Effect of curtailment | 0 | (2) | 0
Total recognized as component of net benefit (credit) cost | (140) | (187) | (162)
Non-U.S. | Post-retirement Benefits |  |  |
Recognized as component of net benefit (credit) cost: |  |  |
Effect of curtailment | 0 | 0 | 0
Total recognized as component of net benefit (credit) cost | 1 | 2 | 0
Non-U.S. | Prior Service Credit (Cost) | Pension Benefits |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning balance | (18) | (13) |
Recognized as component of net benefit (credit) cost: |  |  |
Reclassification from AOCI, before tax | 0 | 0 |
Effect of curtailment | 0 | 2 |
Total recognized as component of net benefit (credit) cost | 0 | 2 |
Plan amendments | 0 | (7) |
Exchange rate adjustments | 2 | 0 |
Ending balance | (16) | (18) | (13)
Non-U.S. | Prior Service Credit (Cost) | Post-retirement Benefits |  |  |
Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |
Beginning balance | 7 | 9 |
Recognized as component of net benefit (credit) cost: |  |  |
Reclassification from AOCI, before tax | (2) | (2) |
Effect of curtailment | 0 | 0 |
Total recognized as component of net benefit (credit) cost | (2) | (2) |
Plan amendments | 0 | 0 |
Exchange rate adjustments | 0 | 0 |
Ending balance | $ 5 | $ 7 | $ 9

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