Segment Information - Net Sales by Brand and Region (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Segment Reporting Information [Line Items]
Net Sales	$ 3,994	$ 3,998	$ 9,376	$ 11,709
Asia
Segment Reporting Information [Line Items]
Net Sales	188	250	483	754
Europe
Segment Reporting Information [Line Items]
Net Sales	118	131	247	390
Other Regions
Segment Reporting Information [Line Items]
Net Sales	29	49	93	144
Canada
Segment Reporting Information [Line Items]
Net Sales	321	304	691	835
U.S.
Segment Reporting Information [Line Items]
Net Sales	3,338	3,264	7,862	9,586
Old Navy
Segment Reporting Information [Line Items]
Net Sales	2,242	1,947	5,161	5,718
Old Navy | Asia
Segment Reporting Information [Line Items]
Net Sales	1	9	4	30
Old Navy | Europe
Segment Reporting Information [Line Items]
Net Sales	0	0	0	0
Old Navy | Other Regions
Segment Reporting Information [Line Items]
Net Sales	14	18	33	57
Old Navy | Canada
Segment Reporting Information [Line Items]
Net Sales	193	151	415	427
Old Navy | U.S.
Segment Reporting Information [Line Items]
Net Sales	2,034	1,769	4,709	5,204
Gap
Segment Reporting Information [Line Items]
Net Sales	993	1,158	2,300	3,296
Gap | Asia
Segment Reporting Information [Line Items]
Net Sales	169	220	435	654
Gap | Europe
Segment Reporting Information [Line Items]
Net Sales	115	128	239	380
Gap | Other Regions
Segment Reporting Information [Line Items]
Net Sales	12	24	48	69
Gap | Canada
Segment Reporting Information [Line Items]
Net Sales	86	97	183	251
Gap | U.S.
Segment Reporting Information [Line Items]
Net Sales	611	689	1,395	1,942
Banana Republic [Member]
Segment Reporting Information [Line Items]
Net Sales	386	618	958	1,802
Banana Republic [Member] | Asia
Segment Reporting Information [Line Items]
Net Sales	18	21	44	70
Banana Republic [Member] | Europe
Segment Reporting Information [Line Items]
Net Sales	3	3	8	10
Banana Republic [Member] | Other Regions
Segment Reporting Information [Line Items]
Net Sales	3	7	12	18
Banana Republic [Member] | Canada
Segment Reporting Information [Line Items]
Net Sales	39	55	90	155
Banana Republic [Member] | U.S.
Segment Reporting Information [Line Items]
Net Sales	323	532	804	1,549
Other entities [Member]
Segment Reporting Information [Line Items]
Net Sales	373	275	957	893
Other entities [Member] | Asia
Segment Reporting Information [Line Items]
Net Sales	0	0	0	0
Other entities [Member] | Europe
Segment Reporting Information [Line Items]
Net Sales	0	0	0	0
Other entities [Member] | Other Regions
Segment Reporting Information [Line Items]
Net Sales	0	0	0	0
Other entities [Member] | Canada
Segment Reporting Information [Line Items]
Net Sales	3	1	3	2
Other entities [Member] | U.S.
Segment Reporting Information [Line Items]
Net Sales	370	274	954	891
Athleta [Member]
Segment Reporting Information [Line Items]
Net Sales	$ 292	$ 216	$ 764	$ 691