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Income Taxes (Unrecognized Tax Benefits) (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 31, 2021
Feb. 02, 2020
Feb. 03, 2019
Reconciliation of gross unrecognized tax benefits:      
Unrecognized tax benefits balance at beginning of fiscal year $ 473 $ 494 $ 637
Additions based on tax positions related to the current year 75 96 91
Additions for tax positions of prior years 72 82 100
Reductions for tax positions of prior years (53) (147) (245)
Reductions due to settlements (22) (13) (66)
Reductions due to lapse of statute of limitations (5) (39) (23)
Unrecognized tax benefits balance at end of fiscal year $ 540 $ 473 $ 494