Summary of Significant Accounting Policies - Goodwill & Indefinite Intangible (Details) (USD $) In Millions, unless otherwise specified	11 Months Ended		12 Months Ended
	Feb. 02, 2013		Jan. 31, 2015		Feb. 01, 2014		Mar. 03, 2012
Goodwill [Roll Forward]
Goodwill, balance at the beginning of the period			$ 425
Goodwill impairments	614		0		0
Goodwill, balance at the end of the period			425		425
Indefinite-lived Intangible Assets [Roll Forward]
Goodwill, Gross			1,100	[1]	1,308
Cumulative Impairment			(675)	[1]	(883)
China [Member]
Goodwill [Roll Forward]
Goodwill impairments					208
Canada [Member]
Goodwill [Roll Forward]
Goodwill impairments					611
Total Operations [Member]
Goodwill [Roll Forward]
Goodwill, balance at the beginning of the period	1,335		425		528
Goodwill acquisitions	15	[2]
Goodwill impairments	(822)		0		0
Goodwill written off related to sale of business			0		(103)	[3]
Goodwill changes in foreign currency exchange rates	0		0		0
Goodwill, balance at the end of the period	528		425		425
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	131		57		101		130
Intangible acquisitions	0
Tradename, impairments	0		(1)		(4)
Intangible written off related to sale of business			(37)	[4]	(22)	[3]
Intangible changes in foreign currency exchange rates	1		(6)		(4)
Total Operations [Member] | International [Member]
Goodwill [Roll Forward]
Goodwill, balance at the beginning of the period	819		0		0
Goodwill acquisitions	0				0
Goodwill impairments	(819)		0		0
Goodwill written off related to sale of business			0
Goodwill changes in foreign currency exchange rates	0		0		0
Goodwill, balance at the end of the period	0		0		0
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	112		39		82		111
Intangible acquisitions	0
Tradename, impairments	0		0		(4)
Intangible written off related to sale of business			(37)	[4]	(22)	[3]
Intangible changes in foreign currency exchange rates	1		(6)		(4)
Total Operations [Member] | Domestic Segment [Member]
Goodwill [Roll Forward]
Goodwill, balance at the beginning of the period	516		425		528
Goodwill acquisitions	15	[2]
Goodwill impairments	(3)		0		0
Goodwill written off related to sale of business			0		(103)	[3]
Goodwill changes in foreign currency exchange rates	0		0		0
Goodwill, balance at the end of the period	528		425		425
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	19		18		19		19
Intangible acquisitions	0				0
Tradename, impairments	0		(1)		0
Intangible written off related to sale of business			0
Intangible changes in foreign currency exchange rates	$ 0		$ 0		$ 0

[1] Excludes the gross carrying amount and cumulative impairment related to Five Star, which was held for sale at the end of fiscal 2015. The sale of Five Star was completed on February 13, 2015.

[2] Represents goodwill acquired, primarily as a result of an acquisition made by mindSHIFT in fiscal 2013 (11-month).

[3] Represents goodwill written-off as a result of the sale of mindSHIFT in fiscal 2014 and indefinite-lived tradenames written off as a result of the sale of Best Buy Europe in fiscal 2014.

[4] Represents the Five Star indefinite-lived tradenames classified as held for sale at January 31, 2015.