Fair Value Measurements (Details 3) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Aug. 03, 2013		Aug. 04, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 4
Segment, Continuing Operations [Member] | Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property and Equipment Impairment Charges	3		29
Property and equipment, remaining net carrying value	0		0
Segment, Discontinued Operations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Long-Lived Assets to be Disposed of	175
Segment, Discontinued Operations [Member] | Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property and Equipment Impairment Charges	220	[1],[2]	0	[1]
Property and equipment, impairments	224		0
Property and equipment, remaining net carrying value	0		0
Assets, Fair Value Disclosure	0		0
Trade Names [Member] | Segment, Discontinued Operations [Member] | Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	4	[1]	0	[1]
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	$ 0		$ 0

[1] (1) Property and equipment and tradename impairments associated with discontinued operations are recorded within Gain (loss) from discontinued operations in our Consolidated Statements of Earnings.

[2] (2) Includes the $175 million impairment to write down the book value of our investment in Best Buy Europe to fair value. Upon completion of the sale of Best Buy Europe as described in Note 2, Discontinued Operations, the remaining net carrying values of all assets have been reduced to zero.