Fair Value Measurements - Nonrecurring (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	May 03, 2014		May 04, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tradename, impairments			$ 4
Impairment of assets held for sale	0		175
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	9		13
Property and equipment, remaining net carrying value	0	[1]	0	[1]
Total impairments	10		14
Total remaining net carrying value	0	[1]	0	[1]
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	0	[2],[3]	220	[2],[3]
Property and equipment, remaining net carrying value	0	[1]	147	[1]
Total impairments	0		224
Total remaining net carrying value	0	[1]	169	[1]
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	0	[2]	4	[2]
Tradename, remaining net carrying value	0	[1]	22	[1]
Property and equipment write-downs [Member] | 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	1	[4]	1	[4]
Property and equipment, remaining net carrying value	$ 0	[1],[4]	$ 0	[1],[4]

[1] Remaining net carrying value approximates fair value.

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

[3] Includes the $175 million impairment to write down the book value of our investment in Best Buy Europe to fair value based on expected net proceeds as described in Note 2, Assets and Liabilities Held for Sale and Discontinued Operations. The impairment was calculated based on the fair value and foreign currency translation adjustment associated with the business and was applied to the fixed assets.

[4] See Note 5, Restructuring Charges, for additional information.