DISCONTINUED OPERATIONS Summary of balance sheet accounts (Details) - USD ($) $ in Millions	Feb. 25, 2017	Feb. 27, 2016	Feb. 28, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents	$ 0	$ 15	$ 39
Current assets of discontinued operations	0	376
Disposal Group, Including Discontinued Operation, Deferred Tax Assets, Noncurrent	0	(10)
Long-term assets of discontinued operations	0	613
Disposal Group, Including Discontinued Operation, Assets		989
Current liabilities of discontinued operations	0	346
Long-term liabilities of discontinued operations	$ 0	42
Disposal Group, Including Discontinued Operation, Liabilities		388
Disposal Group, Including Discontinued Operation, Net Assets (Liabilities)		601
Save-A-Lot [Member] | Discontinued Operations, Held-for-sale or Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents		15
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net		45
Disposal Group, Including Discontinued Operation, Inventory, Current		298
Disposal Group, Including Discontinued Operation, Other Assets, Current		18
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent		460
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent		142
Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent		8
Disposal Group, Including Discontinued Operation, Deferred Tax Assets, Noncurrent		(10)
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent		13
Disposal Group, Including Discontinued Operation, Accounts Payable, Current		289
Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current		34
Disposal Group, Including Discontinued Operation, Capital Lease Obligations, Current		1
Disposal Group, Including Discontinued Operation, Other Liabilities, Current		22
Disposal Group, Including Discontinued Operation, Capital Lease Obligations, Noncurrent		9
Disposal Group, Including Discontinued Operation, Accrued Income Tax Payable, Noncurrent		6
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent		$ 27