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Income Taxes - Earnings From Continuing Operations Before Income Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]      
United States $ 714 $ 980 $ 959
Other nations 287 122 117
Earnings from continuing operations before income taxes $ 1,001 $ 1,102 $ 1,076