Income Taxes Income Taxes - Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Income Tax Disclosure [Abstract]
Balance at beginning of fiscal year	$ 118	$ 44	$ 47
Increases related to current year tax positions	11	48	4
Prior year tax positions:
Increases	29	28	3
Decreases	(6)	(2)	(5)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	0	(1)	0
Cash settlements	(15)	0	(5)
Foreign currency translation	(1)	1	0
Balance at end of fiscal year	$ 136	$ 118	$ 44