Net Sales by Brand and Region (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 30, 2021	Oct. 31, 2020	Oct. 30, 2021	Oct. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	$ 3,943	$ 3,994	$ 12,145	$ 9,376
Old Navy
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	2,105	2,242	6,775	5,161
Gap
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	1,039	993	2,899	2,300
Banana Republic [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	479	386	1,363	958
Athleta [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	320	292	1,008	764
Other entities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	81	100	193
U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	3,302	3,338	10,297	7,862
U.S. | Old Navy
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	1,899	2,034	6,175	4,709
U.S. | Gap
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	676	611	1,847	1,395
U.S. | Banana Republic [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	410	323	1,171	804
U.S. | Athleta [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	317	292	1,004	764
U.S. | Other entities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	78	100	190
Canada
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	337	321	911	691
Canada | Old Navy
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	185	193	535	415
Canada | Gap
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	102	86	249	183
Canada | Banana Republic [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	47	39	124	90
Canada | Athleta [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	3	0	3	0
Canada | Other entities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	3	0	3
Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	92	118	282	247
Europe | Old Navy
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	1	0	1	0
Europe | Gap
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	89	115	274	239
Europe | Banana Republic [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	2	3	6	8
Europe | Athleta [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	0	1	0
Europe | Other entities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	0	0	0
Asia
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	155	188	489	483
Asia | Old Navy
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	1	1	4
Asia | Gap
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	141	169	439	435
Asia | Banana Republic [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	14	18	49	44
Asia | Athleta [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	0	0	0
Asia | Other entities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	0	0	0
Other Regions
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	57	29	166	93
Other Regions | Old Navy
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	20	14	63	33
Other Regions | Gap
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	31	12	90	48
Other Regions | Banana Republic [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	6	3	13	12
Other Regions | Athleta [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	0	0	0	0
Other Regions | Other entities [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Net Sales	$ 0	$ 0	$ 0	$ 0