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Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Equity [Abstract] |  |
Available-for-sale securities | $ 10 | $ 9
Foreign currency translation adjustment | (4) | 1
Actuarial gain related to pensions and other postretirement benefits | (6) | (7)
AOCI attributable to equity method investments | 13 | 13
Accumulated other comprehensive income | $ 13 | $ 16

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