Segment Information - Net Sales by Brand and Region (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	May 02, 2015		May 03, 2014
Segment Reporting Information [Line Items]
Net sales	$ 3,657		$ 3,774
Percentage of Net Sales	100.00%		100.00%
Sales growth (decline)	(3.00%)		1.00%
Online [Member]
Segment Reporting Information [Line Items]
Net sales	563		575
U.S.
Segment Reporting Information [Line Items]
Net sales	2,828	[1]	2,910	[1]
Percentage of Net Sales	77.00%	[1]	77.00%	[1]
Canada
Segment Reporting Information [Line Items]
Net sales	224		235
Percentage of Net Sales	6.00%		6.00%
Europe
Segment Reporting Information [Line Items]
Net sales	181		224
Percentage of Net Sales	5.00%		6.00%
Asia
Segment Reporting Information [Line Items]
Net sales	355		351
Percentage of Net Sales	10.00%		10.00%
Other Regions
Segment Reporting Information [Line Items]
Net sales	69		54
Percentage of Net Sales	2.00%		1.00%
Gap
Segment Reporting Information [Line Items]
Net sales	1,308		1,441
Sales growth (decline)	(9.00%)		(2.00%)
Gap | U.S.
Segment Reporting Information [Line Items]
Net sales	735	[1]	828	[1]
Gap | Canada
Segment Reporting Information [Line Items]
Net sales	69		80
Gap | Europe
Segment Reporting Information [Line Items]
Net sales	164		201
Gap | Asia
Segment Reporting Information [Line Items]
Net sales	285		286
Gap | Other Regions
Segment Reporting Information [Line Items]
Net sales	55		46
Old Navy
Segment Reporting Information [Line Items]
Net sales	1,552		1,481
Sales growth (decline)	5.00%		2.00%
Old Navy | U.S.
Segment Reporting Information [Line Items]
Net sales	1,403	[1]	1,352	[1]
Old Navy | Canada
Segment Reporting Information [Line Items]
Net sales	102		101
Old Navy | Europe
Segment Reporting Information [Line Items]
Net sales	0		0
Old Navy | Asia
Segment Reporting Information [Line Items]
Net sales	43		28
Old Navy | Other Regions
Segment Reporting Information [Line Items]
Net sales	4		0
Banana Republic
Segment Reporting Information [Line Items]
Net sales	621		669
Sales growth (decline)	(7.00%)		2.00%
Banana Republic | U.S.
Segment Reporting Information [Line Items]
Net sales	515	[1]	548	[1]
Banana Republic | Canada
Segment Reporting Information [Line Items]
Net sales	52		53
Banana Republic | Europe
Segment Reporting Information [Line Items]
Net sales	17		23
Banana Republic | Asia
Segment Reporting Information [Line Items]
Net sales	27		37
Banana Republic | Other Regions
Segment Reporting Information [Line Items]
Net sales	10		8
Other
Segment Reporting Information [Line Items]
Net sales	176	[2]	183	[2]
Sales growth (decline)	(4.00%)	[2]	24.00%	[2]
Other | U.S.
Segment Reporting Information [Line Items]
Net sales	175	[1],[2]	182	[1],[2]
Other | Canada
Segment Reporting Information [Line Items]
Net sales	1	[2]	1	[2]
Other | Europe
Segment Reporting Information [Line Items]
Net sales	0	[2]	0	[2]
Other | Asia
Segment Reporting Information [Line Items]
Net sales	0	[2]	0	[2]
Other | Other Regions
Segment Reporting Information [Line Items]
Net sales	$ 0	[2]	$ 0	[2]

[1] U.S. includes the United States, Puerto Rico, and Guam.

[2] Includes Piperlime, Athleta, and Intermix.