Fair Value Measurements Fair Value Measurements (Assets Measured on Nonrecurring Basis) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 27, 2019	Oct. 28, 2018	Jan. 27, 2019
Bolthouse Farms carrot and carrot ingredients reporting unit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tangible Asset Impairment Charges	$ 104
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] | Measure On Nonrecurring Basis [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	102		102
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	30		30
Bolthouse Farms refrigerated beverages and salad dressing [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tangible Asset Impairment Charges	9
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] | Measure On Nonrecurring Basis [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	100		100
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	76		76
Deli Reporting Unit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Tangible Asset Impairment Charges	2	$ 14
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	23
Deli Reporting Unit [Member] | Measure On Nonrecurring Basis [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	25	$ 38	25
Indefinite-lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure	0		0
Customer Relationships [Member] | Bolthouse Farms carrot and carrot ingredients reporting unit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Intangible Assets, Finite-lived	40		40
Finite-lived Intangible Assets, Fair Value Disclosure	15		15
Customer Relationships [Member] | Bolthouse Farms carrot and carrot ingredients reporting unit [Member] | Measure On Nonrecurring Basis [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-lived Intangible Assets, Fair Value Disclosure	15		15
Customer Relationships [Member] | Bolthouse Farms refrigerated beverages and salad dressing [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Intangible Assets, Finite-lived	22		22
Finite-lived Intangible Assets, Fair Value Disclosure	12		12
Customer Relationships [Member] | Bolthouse Farms refrigerated beverages and salad dressing [Member] | Measure On Nonrecurring Basis [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-lived Intangible Assets, Fair Value Disclosure	12		12
Customer Relationships [Member] | Deli Reporting Unit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Intangible Assets, Finite-lived	39
Customer Relationships [Member] | Deli Reporting Unit [Member] | Measure On Nonrecurring Basis [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-lived Intangible Assets, Fair Value Disclosure	0		0
Developed Technology Rights [Member] | Bolthouse Farms carrot and carrot ingredients reporting unit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of Intangible Assets, Finite-lived	15		15
Finite-lived Intangible Assets, Fair Value Disclosure	10		10
Developed Technology Rights [Member] | Bolthouse Farms carrot and carrot ingredients reporting unit [Member] | Measure On Nonrecurring Basis [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Finite-lived Intangible Assets, Fair Value Disclosure	$ 10		$ 10