Segment and Geographic Information - Segment Information (Details) $ in Millions		3 Months Ended																12 Months Ended
		Jan. 30, 2016 USD ($)		Oct. 31, 2015 USD ($)		Aug. 01, 2015 USD ($)		May. 02, 2015 USD ($)		Jan. 31, 2015 USD ($)		Nov. 01, 2014 USD ($)		Aug. 02, 2014 USD ($)		May. 03, 2014 USD ($)		Jan. 30, 2016 USD ($) segments		Jan. 31, 2015 USD ($)		Feb. 01, 2014 USD ($)	Feb. 02, 2013
Business segment information
Number of reportable segments | segments																		2
Total revenue		$ 13,623		$ 8,819		$ 8,528		$ 8,558		$ 14,209		$ 9,032		$ 8,459		$ 8,639		$ 39,528		$ 40,339		$ 40,611
Operating income (loss)		771	[1]	$ 230	[1]	$ 288	[1]	$ 86	[1]	810	[2]	$ 205	[2]	$ 225	[2]	$ 210	[2]	1,375	[1]	1,450	[3]	1,144
Other income (expense)
Gain on sale of investments																		2		13		20
Investment income and other																		13		14		19
Interest expense																		(80)		(90)		(100)
Earnings from continuing operations before income tax expense																		1,310		1,387		1,083
Total Assets	[4]	13,519								15,245								13,519		15,245		13,990
Total capital expenditures	[5]																	649		561		547
Total depreciation																		657		656		701
Domestic [Member]
Business segment information
Total revenue																		$ 36,365		$ 36,055		$ 35,831
Percentage of revenue, by revenue category (as a percent)																		100.00%		100.00%		100.00%
Operating income (loss)																		$ 1,585		$ 1,437		$ 1,145
Other income (expense)
Total Assets	[4]	12,318								12,987								12,318		12,987		11,123
Total capital expenditures	[5]																	$ 602		$ 519		$ 440
Domestic [Member] | Consumer Electronics [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		32.00%		31.00%		30.00%
Domestic [Member] | Computing and Mobile Phones [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		46.00%		47.00%		48.00%
Domestic [Member] | Entertainment [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		8.00%		9.00%		8.00%
Domestic [Member] | Appliances [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		8.00%		7.00%		7.00%
Domestic [Member] | Services [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		5.00%		5.00%		6.00%
Domestic [Member] | Other [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		1.00%		1.00%		1.00%
International [Member]
Business segment information
Total revenue																		$ 3,163		$ 4,284		$ 4,780
Percentage of revenue, by revenue category (as a percent)																		100.00%		100.00%		100.00%
Operating income (loss)																		$ (210)		$ 13		$ (1)
Other income (expense)
Total Assets	[4]	$ 1,201								$ 2,258								1,201		2,258		2,867
Total capital expenditures	[5]																	$ 47		$ 42		$ 107
International [Member] | Consumer Electronics [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		31.00%		30.00%		29.00%
International [Member] | Computing and Mobile Phones [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		48.00%		49.00%		50.00%
International [Member] | Entertainment [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		9.00%		9.00%		10.00%
International [Member] | Appliances [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		5.00%		5.00%		5.00%
International [Member] | Services [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		6.00%		6.00%		6.00%
International [Member] | Other [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		1.00%		1.00%
Maximum percentage of revenue, by revenue category (as a percent)																						1.00%	1.00%
Continuing Operations [Member]
Other income (expense)
Total depreciation	[5]																	$ 657		$ 656		$ 701
Continuing Operations [Member] | Domestic [Member]
Other income (expense)
Total depreciation	[5]																	613		575		565
Continuing Operations [Member] | International [Member]
Other income (expense)
Total depreciation	[5]																	$ 44		$ 81		$ 136

[1] Includes $186 million, $(4) million, $7 million and $12 million of restructuring charges recorded in the fiscal first, second, third and fourth quarters, respectively, and $201 million for the 12 months ended January 30, 2016 related to measures we took to restructure our businesses.

[2] Enterprise comparable sales for fiscal 2015 include revenue from continuing operations in the International segment. Excluding the International segment, Enterprise comparable sales, excluding the impact of installment billing, would have been (1.3%) in the first quarter, 2.0% in the second quarter, 2.4% in the third quarter, 0.5% in the fourth quarter and 0.5% for fiscal 2015, or equal to Domestic comparable sales excluding the impact of installment billing, for the same periods.

[3] Includes $2 million, $5 million, $5 million and $(7) million of restructuring charges recorded in the fiscal first, second, third and fourth quarters, respectively, and $5 million for the 12 months ended January 31, 2015 related to measures we took to restructure our businesses.

[4] For fiscal 2015 and 2014, assets are recast to present our retrospective adoption of ASU 2015-17 Balance Sheet Classification of Deferred Taxes, ASU 2015-03 Simplifying the Presentation of Debt Issuance Costs, and ASU 2015-15 Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements. Refer to Note 1, Summary of Significant Accounting Policies, of the Notes to Consolidated Financial Statements, included in Item 8, Financial Statements and Supplementary Data, of this Annual Report on Form 10-K for further information about our credit facilities.

[5] For fiscal 2015 and 2014, the International segment amounts for assets, capital expenditures and depreciation include amounts from Five Star.