v3.19.3.a.u2
Income Taxes (Schedule of Income before Income Tax, Domestic and Foreign) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income (Loss) from Continuing Operations before Income Taxes      
U.S. income before income taxes $ 18,301 $ 25,379 $ 16,438
Foreign income (loss) before income taxes 167 (506) (1,299)
Income Before Income Taxes $ 18,468 $ 24,873 $ 15,139