Restructuring Charges - Fiscal 2012 Restructuring (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								11 Months Ended		12 Months Ended		6 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		6 Months Ended		11 Months Ended		12 Months Ended			11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended	11 Months Ended	12 Months Ended		23 Months Ended
	Feb. 01, 2014	Nov. 02, 2013	Aug. 03, 2013	May 04, 2013	Feb. 02, 2013	Nov. 03, 2012	Aug. 04, 2012	May 05, 2012	Feb. 02, 2013	Jan. 28, 2012	Feb. 01, 2014	Mar. 03, 2012	Aug. 03, 2013 Restructuring Program 2012 [Member]	Feb. 02, 2013 Restructuring Program 2012 [Member]	Feb. 01, 2014 Restructuring Program 2012 [Member]	Mar. 03, 2012 Restructuring Program 2012 [Member]	Feb. 01, 2014 Restructuring Program 2012 [Member]	Feb. 02, 2013 Restructuring Program 2012 [Member] Employee Severance [Member]	Feb. 01, 2014 Restructuring Program 2012 [Member] Employee Severance [Member]	Mar. 03, 2012 Restructuring Program 2012 [Member] Employee Severance [Member]	Aug. 03, 2013 Restructuring Program 2012 [Member] Facility Closing [Member]	Aug. 04, 2012 Restructuring Program 2012 [Member] Facility Closing [Member]	Feb. 02, 2013 Restructuring Program 2012 [Member] Facility Closing [Member]		Feb. 01, 2014 Restructuring Program 2012 [Member] Facility Closing [Member]		Mar. 03, 2012 Restructuring Program 2012 [Member] Facility Closing [Member]	Feb. 02, 2013 Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 01, 2014 Restructuring Program 2012 [Member] Domestic Segment [Member]	Mar. 03, 2012 Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 01, 2014 Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 02, 2013 Restructuring Program 2012 [Member] International [Member]	Feb. 01, 2014 Restructuring Program 2012 [Member] International [Member]	Mar. 03, 2012 Restructuring Program 2012 [Member] International [Member]	Feb. 01, 2014 Restructuring Program 2012 [Member] International [Member]	Feb. 02, 2013 Continuing Operations [Member]	Feb. 01, 2014 Continuing Operations [Member]	Mar. 03, 2012 Continuing Operations [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Property and equipment write-downs [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Property and equipment write-downs [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] Employee Severance [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Employee Severance [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] Employee Severance [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Employee Severance [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] Facility Closing [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Facility Closing [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] Facility Closing [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Facility Closing [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Property and equipment write-downs [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Property and equipment write-downs [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Employee Severance [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Employee Severance [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Employee Severance [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Employee Severance [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Facility Closing [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Facility Closing [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Facility Closing [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Facility Closing [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Property and equipment write-downs [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Property and equipment write-downs [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Employee Severance [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Employee Severance [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Employee Severance [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Employee Severance [Member]	Feb. 02, 2013 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Facility Closing [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Facility Closing [Member]	Mar. 03, 2012 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Facility Closing [Member]	Feb. 01, 2014 Continuing Operations [Member] Restructuring Program 2012 [Member] International [Member] Facility Closing [Member]	Feb. 02, 2013 Discontinued Operations [Member]	Feb. 01, 2014 Discontinued Operations [Member]	Mar. 03, 2012 Discontinued Operations [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Property and equipment write-downs [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Property and equipment write-downs [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Employee Severance [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Employee Severance [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Employee Severance [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Employee Severance [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Facility Closing [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Facility Closing [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Facility Closing [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Facility Closing [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Inventory write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Inventory write-downs [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Inventory write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Inventory write-downs [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Property and equipment write-downs [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Property and equipment write-downs [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Employee Severance [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Employee Severance [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Employee Severance [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Employee Severance [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Facility Closing [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Facility Closing [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Facility Closing [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Facility Closing [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Inventory write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Inventory write-downs [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Inventory write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] Domestic Segment [Member] Inventory write-downs [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Property and equipment write-downs [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Property and equipment write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Property and equipment write-downs [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Employee Severance [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Employee Severance [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Employee Severance [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Employee Severance [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Facility Closing [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Facility Closing [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Facility Closing [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Facility Closing [Member]	Feb. 02, 2013 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Inventory write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Inventory write-downs [Member]	Mar. 03, 2012 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Inventory write-downs [Member]	Feb. 01, 2014 Discontinued Operations [Member] Restructuring Program 2012 [Member] International [Member] Inventory write-downs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve														$ 36	$ 0	$ 102	$ 0	$ 0	$ 0	$ 17			$ 36		$ 0		$ 85
Restructuring charges	115	31	7	6	169	34	91	127	449	280	259	287	5	(2)	5	243												(1)	0	23		(1)	5	220		415	159	48	(1)	0	28		0	0	22		0	0	1		(1)	0	5		(1)	0	23		0	0	17		0	0	1		(1)	0	5		0	0	5		0	0	5		0	0	0		0	0	0		34	100	239	(1)	5	215		0	0	106		1	0	16		(2)	5	82		0	0	11		0	0	0		0	0	0		0	0	0		0	0	0		0	0	0		(1)	5	215		0	0	106		1	0	16		(2)	5	82		0	0	11
Restructuring Reserve, Accrual Adjustment, Write-off Related to Sale of Business																					6
Restructuring and Related Cost, Cost Incurred to Date																	246														22				224							27				22				1				4				22				17				1				4				5				5				0				0							219				106				17				85				11				0				0				0				0				0				219				106				17				85				11
Restructuring charges									414	24	159	29		3				1					2
Payments for Restructuring														101	33			18	0				83		33
Restructuring Reserve, Accrual Adjustment														28	(1)			0	0			(34)	28	[1]	(1)	[2]
Restructuring Reserve, Translation Adjustment														$ 4	$ (2)			$ 0	$ 0				$ 4		$ (2)

[1] (1) Included within adjustments to facility closure and other costs is $34 million from the first quarter of fiscal 2013 (11-month), representing an adjustment to exclude non-cash charges or benefits, which had no impact on our Consolidated Statements of Earnings in fiscal 2013 (11-month).(2) Included within adjustments to facility closure and other costs is a $5 million charge related to a change in sublease assumptions, offset by a $(6) million adjustment to write off the remaining liability as a result of the sale of Best Buy Europe, as described in Note 4, Discontinued Operations.

[2] (2) Included within adjustments to facility closure and other costs is a $5 million charge related to a change in sublease assumptions, offset by a $(6) million adjustment to write off the remaining liability as a result of the sale of Best Buy Europe, as described in Note 4, Discontinued Operations.