Restructuring Charges and Cost Savings Initiatives (Schedule Of Restructuring Charges Associated With Each Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 26, 2020	Jan. 27, 2019	Jan. 26, 2020	Jan. 27, 2019
Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 18	$ 22	$ 26	$ 49
2015 and Snyder's-Lance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	608		608
Restructuring and Related Cost, Incurred Cost	25	$ 24	36	$ 69
2015 and Snyder's-Lance Initiatives [Member] | Meals & Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	216		216
Restructuring and Related Cost, Incurred Cost	3		5
2015 and Snyder's-Lance Initiatives [Member] | Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	228		228
Restructuring and Related Cost, Incurred Cost	18		27
2015 and Snyder's-Lance Initiatives [Member] | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	164		164
Restructuring and Related Cost, Incurred Cost	$ 4		$ 4