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Consolidated Statement of Comprehensive Income (Loss) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Statement of Comprehensive Income [Abstract]    
Foreign currency translation, taxes $ 10 $ 53
Change in net unrealized gains (losses) on available-for-sale securities, taxes (531) (161)
Change in net unrealized gains (losses) on available-for-sale securities designated in fair value hedges, taxes 57 4
Change in net unrealized gains (losses) on cash flow hedges, taxes (72) 0
Change in unrealized gains (losses) on retirement plans, taxes $ 6 $ 3