Fair Value Measurements (Fair Value, Assets And Liabilities Measured On Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Oct. 27, 2012	Jul. 28, 2012	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Jan. 29, 2011
Assets:
Cash and Cash Equivalents	$ 547		$ 935	$ 498
Interest Rate Designated Fair Value Hedges			14	10
Liabilities:
Cross-currency Cash Flow Hedges	59		60	66
Lease Guarantees	3	3	4	5	5	6
Fair Value, Inputs, Level 1 [Member]
Assets:
Cash and Cash Equivalents	547		935	498
Interest Rate Designated Fair Value Hedges			0	0
Liabilities:
Cross-currency Cash Flow Hedges	0		0	0
Lease Guarantees	0		0	0
Fair Value, Inputs, Level 2 [Member]
Assets:
Cash and Cash Equivalents	0		0	0
Interest Rate Designated Fair Value Hedges			14	10
Liabilities:
Cross-currency Cash Flow Hedges	59		60	66
Lease Guarantees	0		0	0
Fair Value, Inputs, Level 3 [Member]
Assets:
Cash and Cash Equivalents	0		0	0
Interest Rate Designated Fair Value Hedges			0	0
Liabilities:
Cross-currency Cash Flow Hedges	0		0	0
Lease Guarantees	$ 3		$ 4	$ 5