CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 31, 2020	Aug. 02, 2019	Jul. 31, 2020	Aug. 02, 2019
Statement of Comprehensive Income [Abstract]
Tax expense (benefit)	$ (22)	$ 0	$ (12)	$ 7

Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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+ Details