Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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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.

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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.

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Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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Fair value of financial and nonfinancial obligations.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Fair Value Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Fair Value Narrative (Details) - USD ($) $ in Millions	May 29, 2020	Feb. 28, 2020	May 24, 2019	Feb. 22, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, Long-term and Short-term, Combined Amount	$ 728.9	$ 484.3
Long-term Debt, Fair Value	753.0	560.0
Cash and cash equivalents	637.5	541.0
Restricted Cash		6.1	$ 4.9	$ 3.5
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt, Fair Value	753.0	560.0
Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	637.5	541.0
Restricted Cash	5.9	6.1
Assets, Fair Value Disclosure	646.5	550.4
Foreign Currency Contracts, Liability, Fair Value Disclosure	1.5	0.5
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1.5	0.5
Fair Value, Recurring [Member] \| Foreign Exchange Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	1.2	1.2
Fair Value, Recurring [Member] \| Auction Rate Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Fair Value Disclosure	1.9	2.1
Fair Value, Inputs, Level 1 \| Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure		541.0
Restricted Cash	5.9	6.1
Assets, Fair Value Disclosure	643.4	547.1
Foreign Currency Contracts, Liability, Fair Value Disclosure	0.0	0.0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 1 \| Fair Value, Recurring [Member] \| Foreign Exchange Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 1 \| Fair Value, Recurring [Member] \| Auction Rate Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 2 \| Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0.0	0.0
Restricted Cash	0.0	0.0
Assets, Fair Value Disclosure	1.2	1.2
Foreign Currency Contracts, Liability, Fair Value Disclosure	1.5	0.5
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1.5	0.5
Fair Value, Inputs, Level 2 \| Fair Value, Recurring [Member] \| Foreign Exchange Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	1.2	1.2
Fair Value, Inputs, Level 2 \| Fair Value, Recurring [Member] \| Auction Rate Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0.0	0.0
Restricted Cash	0.0	0.0
Assets, Fair Value Disclosure	1.9	2.1
Foreign Currency Contracts, Liability, Fair Value Disclosure	0.0	0.0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Foreign Exchange Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Auction Rate Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale Securities, Fair Value Disclosure	1.9	$ 2.1
Unrealized gain on investments	$ (0.2)