DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Deferred Gains on Leases (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 23, 2019	Feb. 24, 2018	Feb. 25, 2017
Sale Leaseback Transaction [Line Items]
Amount of amortization of deferred gains from sale leaseback	$ 75.7	$ 50.3	$ 37.0
Other current liabilities
Sale Leaseback Transaction [Line Items]
Up-front funds upon sublease or assignment of existing leases	13.7	13.9
Deferred gain from sale leaseback	46.5	62.4
Other long-term liabilities
Sale Leaseback Transaction [Line Items]
Up-front funds upon sublease or assignment of existing leases	44.9	58.6
Deferred gain from sale leaseback	$ 819.1	$ 482.2

This element represents revenue received, but not recognized for financial reporting purposes. Such deferred revenue may consist of and include amounts paid in advance by lessees and is net of the accumulated amortization of such amounts that to date have been recognized in revenue.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

The portion of the deferred gain that was recognized in the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 35
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=108788860&loc=d3e50609-112754

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- Definition

The portion of the gain that will be recorded as income or a reduction in rent expense in future periods less amounts recognized in the current period.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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