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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]        
Net income $ 185 $ 125 $ 555 $ 19
Net changes in cash flow hedges, net of taxes 17 (17) 65 (226)
Total comprehensive income (loss) $ 202 $ 108 $ 620 $ (207)