Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
	Oct. 30, 2018	Jan. 27, 2019	Oct. 28, 2018	Jan. 28, 2018	Jan. 27, 2019	Jan. 28, 2018
Finite-Lived Intangible Assets [Line Items]
Goodwill, Purchase Accounting Adjustments					$ 140
Goodwill, Acquired During Period					21
Amortization of Intangible Assets		$ 15		$ 4	30	$ 8
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months		58			58
Finite-Lived Intangible Assets, Amortization Expense, Year Two		50			50
Finite Lived Intangible Assets, Amortization Expense, Year Three		49			49
Finite Lived Intangible Assets, Amortization Expense, Year Four		49			49
Finite Lived Intangible Assets, Amortization Expense, Year Five		49			$ 49
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life					2 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life					22 years
Global Biscuits and Snacks [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Purchase Accounting Adjustments					$ 140
Goodwill, Acquired During Period					21
Snyder's-Lance [Member] | Goodwill [Member] | Global Biscuits and Snacks [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Purchase Accounting Adjustments			$ 140
Yellow Chips [Member] | Goodwill [Member] | Global Biscuits and Snacks [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Acquired During Period	$ 21
Customer Relationships [Member] | Snyder's-Lance [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			15 years
Customer Relationships [Member] | Snyder's-Lance [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			22 years
Bolthouse Farms carrot and carrot ingredients reporting unit [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		18			18
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure		30			30
Bolthouse Farms carrot and carrot ingredients reporting unit [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		40			40
Finite-lived Intangible Assets, Fair Value Disclosure		15			15
Bolthouse Farms carrot and carrot ingredients reporting unit [Member] | Developed Technology Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		15			15
Finite-lived Intangible Assets, Fair Value Disclosure		10			10
Bolthouse Farms refrigerated beverages and salad dressing [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		74			74
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure		76			76
Bolthouse Farms refrigerated beverages and salad dressing [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		22			22
Finite-lived Intangible Assets, Fair Value Disclosure		12			12
Garden Fresh Gourmet [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		23			23
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure		0			0
Garden Fresh Gourmet [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived		39			39
Finite-lived Intangible Assets, Fair Value Disclosure		$ 0			$ 0