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Commitments and Contingencies - Narrative (Details) $ in Millions	12 Months Ended			27 Months Ended
	Jan. 30, 2016 USD ($) action credit_card_network	Jan. 31, 2015 USD ($)	Feb. 01, 2014 USD ($)	Jan. 30, 2016 USD ($)
Loss Contingencies [Line Items]
Cumulative expenses	$ 39	$ 145	$ 17
Trade letters of credit	1,510	1,447		$ 1,510
Purchase Obligations
Loss Contingencies [Line Items]
Purchase obligations	$ 1,950	2,411		1,950
Purchase obligation term	3 years
Real Estate Obligations
Loss Contingencies [Line Items]
Real estate obligations	$ 279	243		279
Real estate obligation period	1 year
Data Breach
Loss Contingencies [Line Items]
Number of major payment card networks | credit_card_network	4
Number of pretax data breach-related expenses	$ 39	191
Expected insurance proceeds	$ 0	46		90
Net expenses		145		201
Cumulative expenses				291
Data Breach | Canada
Loss Contingencies [Line Items]
Number of previously filed action | action	1
Standby Letters of Credit and Surety Bonds
Loss Contingencies [Line Items]
Trade letters of credit	$ 438	$ 459		$ 438

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Data Breach, Expenses Incurred

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Number Of Major Credit Card Networks

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