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RESTRUCTURING, ACQUISITION, AND INTEGRATION RELATED EXPENSES Restructuring Reserves (Details) $ in Thousands	6 Months Ended
	Jan. 26, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Balances at July 28, 2018	$ 2,219
Restructuring program charges	54,166	[1]
Restructuring Reserve Acquired	6,193
Restructuring Reserve, Accrual Adjustment	0
Payments for Restructuring	(43,984)
Balances at January 26, 2018	18,594
Restructuring and Related Cost, Cost Incurred to Date	56,385
Supervalu
Restructuring Cost and Reserve [Line Items]
Balances at July 28, 2018	0
Restructuring Reserve Acquired	6,193
Restructuring Reserve, Accrual Adjustment	0
Payments for Restructuring	(41,820)
Balances at January 26, 2018	18,539
Restructuring and Related Cost, Cost Incurred to Date	54,166
Earth Origins Market
Restructuring Cost and Reserve [Line Items]
Balances at July 28, 2018	2,219
Restructuring program charges	0
Restructuring Reserve Acquired	0
Restructuring Reserve, Accrual Adjustment	0
Payments for Restructuring	(2,164)
Balances at January 26, 2018	55
Restructuring and Related Cost, Cost Incurred to Date	2,219
Employee Severance | Supervalu
Restructuring Cost and Reserve [Line Items]
Restructuring program charges	$ 33,800
[1] Includes $33.8 million of charges related to change-in-control expense to satisfy outstanding equity awards and severance related costs.

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Restructuring Reserve Acquired

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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Amount of costs incurred to date for the specified restructuring cost.

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.

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