The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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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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Goodwill And Intangible Assets (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 29, 2017	Jul. 31, 2016	Jan. 29, 2017	Jan. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Goodwill, Impairment Loss			$ 191
Amortization of Intangible Assets			10	$ 10
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	$ 20		20
Finite-Lived Intangible Assets, Amortization Expense, Year Two	15		15
Finite Lived Intangible Assets, Amortization Expense, Year Three	15		15
Finite-Lived Intangible Assets, Amortization Expense, Year Four	15		15
Finite Lived Intangible Assets, Amortization Expense, Year Five	15		$ 15
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			5 years
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life			20 years
Campbell Fresh [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Impairment Loss			$ 191
Campbell Fresh [Member] \| Bolthouse Farms carrot and carrot ingredients reporting unit [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Impairment Loss	127	$ 106
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	20	35
Campbell Fresh [Member] \| Bolthouse Farms carrot and carrot ingredients reporting unit [Member] \| Fair Value, Measurements, Nonrecurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Fair Value Disclosure	75	202	75
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	48	$ 68	48
Campbell Fresh [Member] \| Garden Fresh Gourmet [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Impairment Loss	64
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	1
Campbell Fresh [Member] \| Garden Fresh Gourmet [Member] \| Fair Value, Measurements, Nonrecurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Fair Value Disclosure	52		52
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	$ 37		$ 37