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Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Statement of Comprehensive Income [Abstract]      
Net earnings (loss) $ 3,553 $ 1,020 $ 1,647
Other comprehensive income (loss), net of tax      
Marketable securities 0 (4) 0
Pension plans (3) (2) (13)
Unrealized gains (losses) on designated hedges 22 4 20
Financial statement translation (97) 210 (129)
Total other comprehensive income (loss), net of tax (78) 208 (122)
Comprehensive income $ 3,475 $ 1,228 $ 1,525