XML 230 R147.htm IDEA: XBRL DOCUMENT v3.20.4
Details to the consolidated cash flow statements (Details 2) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement [line items]      
Income taxes paid (refund) $ 1,921 $ 1,993 $ 1,809
Income taxes paid (refund), classified as investing activities     139
Income taxes paid (refund), classified as operating activities 1,833 1,876 1,506
Discontinued operations      
Statement [line items]      
Income taxes paid (refund), classified as investing activities $ 88 79  
Income taxes paid (refund), classified as operating activities   $ 38 $ 164