Fair Value Measurements (Fair Values Of Financial Instruments Measured At Fair Value On Recurring Basis) (Details) (Fair Value, Measurements, Recurring, USD $)
In Millions, unless otherwise specified

Aug. 26, 2012

May 27, 2012

Fair value of assets (liabilities)

Total

$ (13.7)

$ (0.8)

Fair value of assets (liabilities) | Corporate bonds

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

14.2

^[1]

14.5

^[1]

Fair value of assets (liabilities) | U.S. Treasury securities

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

10.4

^[2]

13.3

^[2]

Fair value of assets (liabilities) | Mortgage-backed securities

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

9.1

^[1]

9.9

^[1]

Fair value of assets (liabilities) | Commodities Swaps And Futures

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

0.8

^[3]

(0.1)

^[3]

Fair value of assets (liabilities) | Equity Forwards

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

(1.1)

^[4]

2.8

^[4]

Fair value of assets (liabilities) | Interest Rate Locks And Swaps

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

(46.9)

^[5]

(41.7)

^[5]

Fair value of assets (liabilities) | Foreign Currency Forwards

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

(0.2)

^[6]

0.5

^[6]

Quoted prices in active market for identical assets (liabilities) (Level 1)

Total

10.4

13.3

Quoted prices in active market for identical assets (liabilities) (Level 1) | Corporate bonds

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

^[1]

Quoted prices in active market for identical assets (liabilities) (Level 1) | U.S. Treasury securities

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

10.4

^[2]

13.3

^[2]

Quoted prices in active market for identical assets (liabilities) (Level 1) | Mortgage-backed securities

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

^[1]

Quoted prices in active market for identical assets (liabilities) (Level 1) | Commodities Swaps And Futures

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

^[3]

Quoted prices in active market for identical assets (liabilities) (Level 1) | Equity Forwards

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

^[4]

Quoted prices in active market for identical assets (liabilities) (Level 1) | Interest Rate Locks And Swaps

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

^[5]

Quoted prices in active market for identical assets (liabilities) (Level 1) | Foreign Currency Forwards

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

^[6]

Significant other observable inputs (Level 2)

Total

(24.1)

(14.1)

Significant other observable inputs (Level 2) | Corporate bonds

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

14.2

^[1]

14.5

^[1]

Significant other observable inputs (Level 2) | U.S. Treasury securities

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

^[2]

Significant other observable inputs (Level 2) | Mortgage-backed securities

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

9.1

^[1]

9.9

^[1]

Significant other observable inputs (Level 2) | Commodities Swaps And Futures

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

0.8

^[3]

(0.1)

^[3]

Significant other observable inputs (Level 2) | Equity Forwards

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

(1.1)

^[4]

2.8

^[4]

Significant other observable inputs (Level 2) | Interest Rate Locks And Swaps

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

(46.9)

^[5]

(41.7)

^[5]

Significant other observable inputs (Level 2) | Foreign Currency Forwards

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

(0.2)

^[6]

0.5

^[6]

Significant unobservable inputs (Level 3)

Total

Significant unobservable inputs (Level 3) | Corporate bonds

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

^[1]

Significant unobservable inputs (Level 3) | U.S. Treasury securities

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

^[2]

Significant unobservable inputs (Level 3) | Mortgage-backed securities

Fixed-income securities, Corporate bonds, U.S Treasury securities, and Mortgage-backed securities

^[1]

Significant unobservable inputs (Level 3) | Commodities Swaps And Futures

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

^[3]

Significant unobservable inputs (Level 3) | Equity Forwards

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

^[4]

Significant unobservable inputs (Level 3) | Interest Rate Locks And Swaps

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

^[5]

Significant unobservable inputs (Level 3) | Foreign Currency Forwards

Derivatives, Commodities futures, swaps and options, Equity forwards, Interest rate swaps, and Foreign currency forwards

$ 0

^[6]

$ 0

^[6]

[1]	The fair value of these securities is based on closing market prices of the investments when applicable, or, alternatively, valuations utilizing market data and other observable inputs, inclusive of the risk of nonperformance.
[2]	The fair value of our U.S. Treasury securities is based on closing market prices.
[3]	The fair value of our commodities futures, swaps and options classified as Level 2 is based on closing market prices of the contracts, inclusive of the risk of nonperformance.
[4]	The fair value of our equity forwards is based on closing market values of Darden stock, inclusive of the risk of nonperformance
[5]	The fair value of our interest rate lock and swap agreements is based on current and expected market interest rates, inclusive of the risk of nonperformance.
[6]	The fair value of our foreign currency forward contracts is based on closing forward exchange market prices, inclusive of the risk of nonperformance

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity 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. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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