CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY (Parenthetical) $ in Millions	12 Months Ended
Dec. 31, 2019 USD ($)
Income tax expense	$ 641
RETAINED EARNINGS (ACCUMULATED DEFICIT) \| Cumulative Effect, Period of Adoption, Adjustment
Income tax expense	$ 1

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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