Fair value portion of asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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Fair Value Measurements Fair Value Measurements (Assets Measured on Nonrecurring Basis) (Details) - USD ($) $ in Millions	3 Months Ended					12 Months Ended
	Jul. 29, 2018	Apr. 29, 2018	Jan. 28, 2018	Jan. 29, 2017	Jul. 31, 2016	Jul. 29, 2018	Jul. 30, 2017
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Impairment Loss						$ 540	$ 191
Plum [Member]
Indefinite-lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 54
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	$ 61					$ 61
Deli Reporting Unit [Member]
Indefinite-lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		$ 13
Tangible Asset Impairment Charges		11
Goodwill, Impairment Loss		81
Goodwill, Fair Value Disclosure		0
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure		23
Property, Plant, and Equipment, Fair Value Disclosure		53
Bolthouse Farms carrot and carrot ingredients reporting unit [Member]
Indefinite-lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)				$ 20	$ 35
Goodwill, Impairment Loss			$ 75	127	106
Goodwill, Fair Value Disclosure			$ 0	75	202
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure				48	$ 68
Garden Fresh Gourmet reporting unit [Member]
Indefinite-lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)				1
Goodwill, Impairment Loss				64
Goodwill, Fair Value Disclosure				52
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure				$ 37
Bolthouse Farms refrigerated beverages and salad dressing [Member]
Indefinite-lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)		130
Goodwill, Impairment Loss		384
Goodwill, Fair Value Disclosure		0
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure		$ 150