Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2020	Feb. 01, 2019	Feb. 02, 2018
Reserve for loss on obsolete inventory
Movement in Valuation Allowances and Reserves
Balance at beginning of period	$ 78	$ 77	$ 59
Charges to costs and expenses	27	1	18
Deductions	0	0	0
Balance at end of period	105	78	77
Reserve for inventory shrinkage
Movement in Valuation Allowances and Reserves
Balance at beginning of period	222	212	189
Charges to costs and expenses	533	478	456
Deductions	(511)	(468)	(433)
Balance at end of period	244	222	212
Reserve for sales returns
Movement in Valuation Allowances and Reserves
Balance at beginning of period	194	71	71
Charges to costs and expenses	0	123	0
Deductions	0	0	0
Balance at end of period	194	194	71
Deferred tax valuation allowance
Movement in Valuation Allowances and Reserves
Balance at beginning of period	569	475	578
Charges to costs and expenses	0	94	0
Deductions	(8)	0	(103)
Balance at end of period	561	569	475
Self-insurance liabilities
Movement in Valuation Allowances and Reserves
Balance at beginning of period	953	890	831
Charges to costs and expenses	1,711	1,530	1,547
Deductions	(1,560)	(1,467)	(1,488)
Balance at end of period	1,104	953	890
Reserve for exit activities
Movement in Valuation Allowances and Reserves
Balance at beginning of period	361	60	66
Charges to costs and expenses	0	384	19
Deductions	(273)	(83)	(25)
Balance at end of period	$ 88	$ 361	$ 60