Derivative Instruments - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jan. 29, 2022	Jul. 31, 2021
Derivative [Line Items]
Right of set-off, reduction in derivative liabilities	$ 27	$ 17
Right of set-off, reduction in derivative assets	27	17
Cash collateral, liability	56	109
Net derivative liability	$ 16	$ 3
Cash flow hedges
Derivative [Line Items]
Derivative average remaining maturity	24 months
Net investment hedges
Derivative [Line Items]
Derivative average remaining maturity	6 months