Fair Value Measurements (Details 3) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Nov. 02, 2013		Nov. 03, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tradename, Impairments	$ 4
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, Impairments	4		29
Property and equipment, Remaining Net Carrying Value	0		0
Investments, Impairments	16		0
Investments, Remaining Net Carrying Value	22		0
Total discontinued operations, Impairments	20		29
Total discontinued operations, Remaining Net Carrying Value	22		0
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
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, Impairments	220	[1],[2]	0	[1],[2]
Property and equipment, Remaining Net Carrying Value	0		0
Total discontinued operations, Impairments	224		0
Total discontinued operations, Remaining Net Carrying Value	0		0
Tradename [Member] | 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]
Tradename, Impairments	4	[2]	0	[2]
Tradename, Remaining Net Carrying Value	$ 0		$ 0

[1] 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.

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