Fair Value Measurements (Fair Value, Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($) $ in Millions	Aug. 01, 2015	May. 02, 2015	Jan. 31, 2015	Aug. 02, 2014	May. 03, 2014	Feb. 01, 2014
Assets:
Cash and Cash Equivalents	$ 780		$ 1,681	$ 1,147
Marketable Securities, Current	50		0	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	25		21
Interest Rate Designated Fair Value Hedges	7		12	3
Liabilities:
Guarantees, Fair Value Disclosure	0	$ 0	1	1	$ 1	$ 1
Foreign Currency Cash Flow Hedge Liability at Fair Value				26
Fair Value, Inputs, Level 1 [Member]
Assets:
Cash and Cash Equivalents	780		1,681	1,147
Marketable Securities, Current	50
Foreign Currency Cash Flow Hedge Asset at Fair Value	0		0
Interest Rate Designated Fair Value Hedges	0		0	0
Liabilities:
Guarantees, Fair Value Disclosure			0	0
Foreign Currency Cash Flow Hedge Liability at Fair Value				0
Fair Value, Inputs, Level 2 [Member]
Assets:
Cash and Cash Equivalents	0		0	0
Marketable Securities, Current	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	25		21
Interest Rate Designated Fair Value Hedges	7		12	3
Liabilities:
Guarantees, Fair Value Disclosure			0	0
Foreign Currency Cash Flow Hedge Liability at Fair Value				26
Fair Value, Inputs, Level 3 [Member]
Assets:
Cash and Cash Equivalents	0		0	0
Marketable Securities, Current	0
Foreign Currency Cash Flow Hedge Asset at Fair Value	0		0
Interest Rate Designated Fair Value Hedges	$ 0		0	0
Liabilities:
Guarantees, Fair Value Disclosure			$ 1	1
Foreign Currency Cash Flow Hedge Liability at Fair Value				$ 0