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Consolidated Statements of Comprehensive Income (Loss) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Statement of Comprehensive Income [Abstract]        
NET INCOME (LOSS) $ 64 $ (320) $ (183) $ (588)
Changes in fair value of derivative instruments, net of reclassifications into earnings, net of deferred taxes 0 3 0 (5)
Total other comprehensive income (loss) 0   0 (5)
COMPREHENSIVE INCOME (LOSS) $ 64 $ (317) $ (183) $ (593)