Supplemental Financial Statement Data (Schedule of Statement of Earnings) (Details) - USD ($) $ in Millions		12 Months Ended
		Jul. 28, 2019	Jul. 29, 2018	Jul. 30, 2017
Amortization of Intangible Assets		$ 48	$ 20	$ 1
Impairment charges	[1]	16	54	0
Net periodic benefits expense (income), other than the service cost		71	(225)	(224)
Investment (gains) / losses		1	10	9
Transaction Costs	[2]	0	53	0
Legal Settlements		0	22	0
Other Income		4	(7)	(2)
Other expenses / (income)		140	(73)	(216)
Advertising Expense	[3]	347	327	327
Interest Costs Incurred		359	186	117
Interest Costs Capitalized Adjustment		(3)	(3)	(2)
Interest Expense		$ 356	183	$ 115
Snyder's-Lance [Member]
Transaction Costs			$ 53

[1] See Note 6 for additional information.

[2] In 2018, we recognized transaction costs of $53 related to the acquisition of Snyder's-Lance. See Note 4 for additional information.

[3] Included in Marketing and selling expenses.