Taxes on Earnings Taxes on Earnings (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jan. 31, 2021	Aug. 01, 2021	Aug. 02, 2020	Jul. 28, 2019
Deferred Income Tax Expense (Benefit)		$ 137	$ (7)	$ 23
Operating Loss Carryforwards		294
Valuation Allowance, Deferred Tax Asset, Change in Amount		20	(305)	294
Deferred Tax Assets, Valuation Allowance		142	122
Undistributed Earnings of Foreign Subsidiaries		11
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		18	18	$ 17
Snyder's-Lance Cost Transformation Program and Integration
Deferred Income Tax Expense (Benefit)	$ 19	19
Indefinite Life [Member]
Operating Loss Carryforwards		27
Definite Life [Member]
Operating Loss Carryforwards		267
Gross Amount of Operating Loss Carryforwards with a Full Valuation Allowance [Member]
Operating Loss Carryforwards		113
Other Liabilities [Member]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued		4	4
Capital Loss Carryforward [Member]
Tax Credit Carryforward, Amount		477
Tax Credit Carryforward, Valuation Allowance		$ 477
Earliest Tax Year [Member]
Operating Loss Carryforwards, Expiration Date		Aug. 02, 2022
Latest Tax Year [Member]
Operating Loss Carryforwards, Expiration Date		Jul. 31, 2038
State and Local Jurisdiction [Member]
Deferred Tax Assets, Tax Credit Carryforwards, Other		$ 13	13
Deferred Tax Assets, Valuation Allowance		$ 13	$ 13
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Tax Credit Carryforward, Expiration Date		Aug. 02, 2022
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Tax Credit Carryforward, Expiration Date		Jul. 31, 2031