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Income Taxes (Income before Income Taxes) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
United States $ 1,580 $ 2,336 $ 2,252
Other countries 645 594 398
Total income before income taxes $ 2,225 $ 2,930 $ 2,650