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DISCONTINUED OPERATIONS - Gain on Sale (Details) - Save-A-Lot and NAI [Member] - Discontinued Operations, Held-for-sale or Disposed of by Sale [Member]
$ in Millions
12 Months Ended
Feb. 25, 2017
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]  
Purchase price $ 1,304
Disposed of balance sheet assets and liabilities, net (635)
Transaction costs and other (32)
Pre-tax gain on sale 637
Income tax provision (60)
After-tax gain on sale $ 577