v3.26.1
Derivative Financial Instruments - Effects Of Derivative Financial Instruments On OCI And Condensed Consolidated Statements Of Income (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Aug. 01, 2026
Aug. 02, 2025
Aug. 01, 2026
Aug. 02, 2025
Derivative Instruments, (Gain) Loss [Line Items]        
Cost of goods sold and occupancy expenses $ 1,722 $ 2,189 $ 3,802 $ 4,204
Operating Expenses 1,253 1,244 2,225 2,432
Income Statement Location [Axis]: us-gaap:OperatingExpenses        
Derivative Instruments, (Gain) Loss [Line Items]        
Gain (Loss) on Derivative Instruments, Net, Pretax (14) (1) (16) 20
Income Statement Location [Axis]: gap:CostOfGoodsSoldAndOccupancyExpenseMember        
Derivative Instruments, (Gain) Loss [Line Items]        
Gain (Loss) on Derivative Instruments, Net, Pretax (5) 0 (8) (5)
Foreign Exchange Forward Contract | Income Statement Location [Axis]: us-gaap:OperatingExpenses | Not Designated as Hedging Instrument        
Derivative Instruments, (Gain) Loss [Line Items]        
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net (14) (1) (16) 20
Foreign Exchange Forward Contract | Income Statement Location [Axis]: us-gaap:OperatingExpenses | Derivatives in cash flow hedging relationships        
Derivative Instruments, (Gain) Loss [Line Items]        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax 0 0 0 0
Foreign Exchange Forward Contract | Income Statement Location [Axis]: gap:CostOfGoodsSoldAndOccupancyExpenseMember | Not Designated as Hedging Instrument        
Derivative Instruments, (Gain) Loss [Line Items]        
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net 0 0 0 0
Foreign Exchange Forward Contract | Income Statement Location [Axis]: gap:CostOfGoodsSoldAndOccupancyExpenseMember | Derivatives in cash flow hedging relationships        
Derivative Instruments, (Gain) Loss [Line Items]        
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax $ (5) $ 0 $ (8) $ (5)