Segment and Geographic Information - Segment Information (Details) $ in Millions		3 Months Ended																12 Months Ended
		Jan. 28, 2017 USD ($)		Oct. 29, 2016 USD ($)		Jul. 30, 2016 USD ($)		Apr. 30, 2016 USD ($)		Jan. 30, 2016 USD ($)		Oct. 31, 2015 USD ($)		Aug. 01, 2015 USD ($)		May 02, 2015 USD ($)		Jan. 28, 2017 USD ($) segments		Jan. 30, 2016 USD ($)		Jan. 31, 2015 USD ($)	Feb. 01, 2014
Business segment information
Number of reportable segments | segments																		2
Total revenue		$ 13,482		$ 8,945		$ 8,533		$ 8,443		$ 13,623		$ 8,819		$ 8,528		$ 8,558		$ 39,403		$ 39,528		$ 40,339
Operating income (loss)		881	[1]	$ 312	[1]	$ 289	[1]	$ 372	[1]	771	[2]	$ 230	[2]	$ 288	[2]	$ 86	[2]	1,854	[1]	1,375	[2]	1,450
Other income (expense)
Gain on sale of investments																		3		2		13
Investment income and other																		31		13		14
Interest expense																		(72)		(80)		(90)
Earnings from continuing operations before income tax expense																		1,816		1,310		1,387
Total Assets	[3]	13,856								13,519								13,856		13,519		15,245
Total capital expenditures	[4]																	582		649		561
Total depreciation																		654		657		656
Domestic [Member]
Business segment information
Total revenue																		$ 36,248		$ 36,365		$ 36,055
Percentage of revenue, by revenue category (as a percent)																		100.00%		100.00%		100.00%
Operating income (loss)																		$ 1,764		$ 1,585		$ 1,437
Other income (expense)
Total Assets	[3]	12,496								12,318								12,496		12,318		12,987
Total capital expenditures	[4]																	$ 526		$ 602		$ 519
Domestic [Member] | Consumer Electronics [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		34.00%		32.00%		31.00%
Domestic [Member] | Computing and Mobile Phones [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		45.00%		46.00%		47.00%
Domestic [Member] | Entertainment [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		7.00%		8.00%		9.00%
Domestic [Member] | Appliances [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		9.00%		8.00%		7.00%
Domestic [Member] | Services [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		5.00%		5.00%		5.00%
Domestic [Member] | Other [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		0.00%		1.00%		1.00%
International [Member]
Business segment information
Total revenue																		$ 3,155		$ 3,163		$ 4,284
Percentage of revenue, by revenue category (as a percent)																		100.00%		100.00%		100.00%
Operating income (loss)																		$ 90		$ (210)		$ 13
Other income (expense)
Total Assets	[3]	$ 1,360								$ 1,201								1,360		1,201		2,258
Total capital expenditures	[4]																	$ 56		$ 47		$ 42
International [Member] | Consumer Electronics [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		31.00%		31.00%		30.00%
International [Member] | Computing and Mobile Phones [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		48.00%		48.00%		49.00%
International [Member] | Entertainment [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		7.00%		9.00%		9.00%
International [Member] | Appliances [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		6.00%		5.00%		5.00%
International [Member] | Services [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		7.00%		6.00%		6.00%
International [Member] | Other [Member]
Business segment information
Percentage of revenue, by revenue category (as a percent)																		1.00%		1.00%		1.00%
Maximum percentage of revenue, by revenue category (as a percent)																						1.00%	1.00%
Continuing Operations [Member]
Other income (expense)
Total depreciation	[4]																	$ 654		$ 657		$ 656
Continuing Operations [Member] | Domestic [Member]
Other income (expense)
Total depreciation	[4]																	613		613		575
Continuing Operations [Member] | International [Member]
Other income (expense)
Total depreciation	[4]																	$ 41		$ 44		$ 81

[1] Includes $29 million, $0 million, $1 million and $9 million of restructuring charges recorded in the fiscal first, second, third and fourth quarters, respectively, and $39 million for the 12 months ended January 28, 2017, related to measures we took to restructure our businesses. Also, includes $161 million of cathode ray tube litigation settlements, net of related legal fees and costs, recorded in the fiscal first quarter and in the 12 months ended January 28, 2017, related to products purchased and sold in prior fiscal years.

[2] 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. Also, includes $67 million, $8 million, $0 million and $2 million of CRT and LCD litigation settlements, net of related legal fees and costs, recorded in the fiscal first, second, third and fourth quarters respectively, and $77 million for the 12 months ended January 30, 2016, related to products purchased and sold in prior fiscal years.

[3] (1) The Domestic segment operating income includes certain operations, which are based in foreign tax jurisdictions and primarily relate to sourcing products into the U.S.

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