Derivative Instruments - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 30, 2021	Jul. 31, 2021
Derivative [Line Items]
Right of set-off, reduction in derivative liabilities	$ 32	$ 17
Right of set-off, reduction in derivative assets	32	17
Cash collateral, asset	82
Cash collateral, liability		109
Net derivative asset	$ 1
Net derivative liability		$ 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