Debt (Short-Term Commercial Paper Programs and Line of Credit Facility) (Narrative) (Details) - USD ($) $ in Millions	10 Months Ended	12 Months Ended
	Nov. 30, 2014	Jan. 31, 2016	Feb. 01, 2015
Commercial Paper [Member]
Short-Term Line of Credit and Commercial Paper Programs [Abstract]
Credit Facility Maximum Borrowing Capacity		$ 2,000
Balance outstanding at fiscal year-end		350	$ 290
Maximum Amount Outstanding at Any Month-End		350	290
Average Daily Short-Term Borrowings		$ 69	$ 20
Weighted Average Interest Rate		0.34%	0.13%
Revolving Credit Facility [Member]
Short-Term Line of Credit and Commercial Paper Programs [Abstract]
Credit Facility Maximum Borrowing Capacity		$ 2,000
Credit Facility Expiration Date	Jul. 31, 2017	Dec. 31, 2019