Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	$ 7	$ (38)	$ (47)
Change in fair value of derivative financial instruments	(26)	60	118
Amounts reclassified from accumulated OCI	(12)	(102)	(41)
Other comprehensive income (loss), net	(31)	(80)	30
Accumulated Other Comprehensive Income (Loss), Net of Tax	54	85	165	$ 135
Derivatives in cash flow hedging relationships
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	0	0	0
Change in fair value of derivative financial instruments	(26)	60	118
Amounts reclassified from accumulated OCI	(12)	(102)	(41)
Other comprehensive income (loss), net	(38)	(42)	77
Accumulated Other Comprehensive Income (Loss), Net of Tax	25	63	105	28
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	7	(38)	(47)
Change in fair value of derivative financial instruments	0	0	0
Amounts reclassified from accumulated OCI	0	0	0
Other comprehensive income (loss), net	7	(38)	(47)
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 29	$ 22	$ 60	$ 107