Long-term Debt (Revolving Facility And Letters Of Credit) (Narrative) (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jul. 30, 2016 USD ($)	Jul. 30, 2016 USD ($)	Aug. 01, 2015 USD ($)
Proceeds from Long-term Lines of Credit		$ 10	$ 0
Letter of Credit [Member]
Outstanding letters of credit	$ 8	8
Revolving Credit Facility [Member] | Foreign Revolving Credit Expiring Nov 2016 to Jul 2017 [Member]
Revolving facility, borrowing capacity	100	100
Outstanding letters of credit	17	17
Proceeds from Long-term Lines of Credit	4
Line of Credit Facility, Maximum Amount Outstanding During Period		17
Revolving Credit Facility [Member] | Revolving Credit Expiring July 2019 [Member]
Revolving facility, borrowing capacity	$ 1,000	$ 1,000
Revolving Facility Commitment fee percentage, unused capacity		0.30%
Revolving Facility Current credit fees percentage rate, letters of credit		1.50%
Revolving Facility Percentage spread over variable base rate		1.50%
Revolving Facility Covenant Fixed charge coverage ratio		1.75
Revolving Facility Covenant Ratio of consolidated debt to consolidated EBITDA		4.00
Revolving Facility Covenant Debt to EBITDA ratio required for unlimited investments and restricted payments	3.00	3.00
Revolving Facility Covenant Line of Credit Financial Covenant Ratio of Consolidated Debt to Consolidated EBITDA Maximum Current Rate	3.00	3.00
Outstanding letters of credit	$ 0	$ 0