Segments (Revenue by Reportable Segment and Product Category) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 11,849	$ 9,910	$ 23,486	$ 18,472
Domestic Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	11,011	9,128	21,852	17,043
Domestic Segment [Member] | Computing and Mobile Phones [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	4,765	4,306	9,558	8,111
Domestic Segment [Member] | Consumer Electronics [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	3,380	2,634	6,618	4,853
Domestic Segment [Member] | Appliances [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	1,688	1,290	3,237	2,225
Domestic Segment [Member] | Entertainment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	560	411	1,228	921
Domestic Segment [Member] | Services [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	570	462	1,126	883
Domestic Segment [Member] | Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	48	25	85	50
International Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	838	782	1,634	1,429
International Segment [Member] | Computing and Mobile Phones [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	373	382	767	691
International Segment [Member] | Consumer Electronics [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	250	212	467	388
International Segment [Member] | Appliances [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	103	91	173	150
International Segment [Member] | Entertainment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	57	49	122	106
International Segment [Member] | Services [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	40	35	75	67
International Segment [Member] | Other [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 15	$ 13	$ 30	$ 27