Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Jan. 28, 2017	Jan. 30, 2016
Assets:
Cash equivalents	$ 697	$ 517
Derivative financial instruments	58	93
Deferred compensation plan assets	40	37
Total	795	647
Liabilities:
Derivative Liability, Fair Value, Gross Liability	21	3
Fair Value, Inputs, Level 1 [Member]
Assets:
Cash equivalents	256	204
Derivative financial instruments	0	0
Deferred compensation plan assets	40	37
Total	296	241
Liabilities:
Derivative Liability, Fair Value, Gross Liability	0	0
Fair Value, Inputs, Level 2 [Member]
Assets:
Cash equivalents	441	313
Derivative financial instruments	58	93
Deferred compensation plan assets	0	0
Total	499	406
Liabilities:
Derivative Liability, Fair Value, Gross Liability	21	3
Fair Value, Inputs, Level 3 [Member]
Assets:
Cash equivalents	0	0
Derivative financial instruments	0	0
Deferred compensation plan assets	0	0
Total	0	0
Liabilities:
Derivative Liability, Fair Value, Gross Liability	$ 0	$ 0