Derivative Instruments - Fair Value of Derivatives Derivative Instruments by Balance Sheet Line Item (Details) - USD ($) $ in Millions	Oct. 30, 2021	Jul. 31, 2021
Derivative [Line Items]
DERIVATIVE ASSETS	$ 116	$ 126
DERIVATIVE LIABILITIES	33	20
Derivatives designated as hedging instruments:
Derivative [Line Items]
DERIVATIVE ASSETS	106	123
DERIVATIVE LIABILITIES	7	3
Derivatives designated as hedging instruments: | Foreign currency derivatives | Other current assets
Derivative [Line Items]
DERIVATIVE ASSETS	21	14
Derivatives designated as hedging instruments: | Foreign currency derivatives | Other assets
Derivative [Line Items]
DERIVATIVE ASSETS	4	1
Derivatives designated as hedging instruments: | Foreign currency derivatives | Other current liabilities
Derivative [Line Items]
DERIVATIVE LIABILITIES	7	3
Derivatives designated as hedging instruments: | Foreign currency derivatives | Other long-term liabilities
Derivative [Line Items]
DERIVATIVE LIABILITIES	0	0
Derivatives designated as hedging instruments: | Interest rate derivatives | Other current assets
Derivative [Line Items]
DERIVATIVE ASSETS	6	9
Derivatives designated as hedging instruments: | Interest rate derivatives | Other assets
Derivative [Line Items]
DERIVATIVE ASSETS	75	99
Derivatives designated as hedging instruments: | Interest rate derivatives | Other current liabilities
Derivative [Line Items]
DERIVATIVE LIABILITIES	0	0
Derivatives designated as hedging instruments: | Interest rate derivatives | Other long-term liabilities
Derivative [Line Items]
DERIVATIVE LIABILITIES	0	0
Derivatives not designated as hedging instruments:
Derivative [Line Items]
DERIVATIVE ASSETS	10	3
DERIVATIVE LIABILITIES	26	17
Derivatives not designated as hedging instruments: | Foreign currency derivatives | Other current assets
Derivative [Line Items]
DERIVATIVE ASSETS	10	3
Derivatives not designated as hedging instruments: | Foreign currency derivatives | Other assets
Derivative [Line Items]
DERIVATIVE ASSETS	0	0
Derivatives not designated as hedging instruments: | Foreign currency derivatives | Other current liabilities
Derivative [Line Items]
DERIVATIVE LIABILITIES	22	16
Derivatives not designated as hedging instruments: | Foreign currency derivatives | Other long-term liabilities
Derivative [Line Items]
DERIVATIVE LIABILITIES	$ 4	$ 1