Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions	Aug. 27, 2011	Feb. 26, 2011	May 29, 2010
Money Market Funds [Member] | Fair Value | Cash and Cash Equivalents [Member]
ASSETS
Cash and cash equivalents	$ 560	$ 70	$ 1
Money Market Funds [Member] | Fair Value | Short-term Investments [Member]
ASSETS
Short-term investments		2	2
Money Market Funds [Member] | Fair Value | Other Current Assets [Member]
ASSETS
Restricted cash	157	63	49
US Treasury Securities [Member] | Fair Value | Short-term Investments [Member]
ASSETS
Short-term investments	80	20
US Treasury Securities [Member] | Fair Value | Other Current Assets [Member]
ASSETS
Restricted cash	30	105	100
Fair Value | Cash and Cash Equivalents [Member] | Commercial Paper [Member]
ASSETS
Cash and cash equivalents	15
Fair Value | Other Current Assets [Member]
ASSETS
Foreign currency derivative instruments	6	2	6
Fair Value | Equity and Other Investments [Member]
ASSETS
Auction rate securities	88	110	134
Marketable equity securities	122	146	97
Fair Value | Other Assets [Member]
ASSETS
Foreign currency derivative instruments	1		6
Marketable equity securities that fund deferred compensation	83	83	77
Fair Value | Accrued Liabilities [Member]
LIABILITIES
Foreign currency derivative instruments		1
Fair Value | Long-term Liabilities [Member]
LIABILITIES
Deferred compensation	65	64	64
Foreign currency derivative instruments		2
Money Market Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and Cash Equivalents [Member]
ASSETS
Cash and cash equivalents	560	70	1
Money Market Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term Investments [Member]
ASSETS
Short-term investments		0	0
Money Market Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Assets [Member]
ASSETS
Restricted cash	157	63	49
US Treasury Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Short-term Investments [Member]
ASSETS
Short-term investments	80	20
US Treasury Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Assets [Member]
ASSETS
Restricted cash	30	105	100
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and Cash Equivalents [Member] | Commercial Paper [Member]
ASSETS
Cash and cash equivalents	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Assets [Member]
ASSETS
Foreign currency derivative instruments	0	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity and Other Investments [Member]
ASSETS
Auction rate securities	0	0	0
Marketable equity securities	122	146	97
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Assets [Member]
ASSETS
Foreign currency derivative instruments	0		0
Marketable equity securities that fund deferred compensation	83	83	77
Quoted Prices in Active Markets for Identical Assets (Level 1) | Accrued Liabilities [Member]
LIABILITIES
Foreign currency derivative instruments		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Long-term Liabilities [Member]
LIABILITIES
Deferred compensation	65	64	64
Foreign currency derivative instruments		0
Money Market Funds [Member] | Significant Other Observable Inputs (Level 2) | Cash and Cash Equivalents [Member]
ASSETS
Cash and cash equivalents	0	0	0
Money Market Funds [Member] | Significant Other Observable Inputs (Level 2) | Short-term Investments [Member]
ASSETS
Short-term investments		2	2
Money Market Funds [Member] | Significant Other Observable Inputs (Level 2) | Other Current Assets [Member]
ASSETS
Restricted cash	0	0	0
US Treasury Securities [Member] | Significant Other Observable Inputs (Level 2) | Short-term Investments [Member]
ASSETS
Short-term investments	0	0
US Treasury Securities [Member] | Significant Other Observable Inputs (Level 2) | Other Current Assets [Member]
ASSETS
Restricted cash	0	0	0
Significant Other Observable Inputs (Level 2) | Cash and Cash Equivalents [Member] | Commercial Paper [Member]
ASSETS
Cash and cash equivalents	15
Significant Other Observable Inputs (Level 2) | Other Current Assets [Member]
ASSETS
Foreign currency derivative instruments	6	2	6
Significant Other Observable Inputs (Level 2) | Equity and Other Investments [Member]
ASSETS
Auction rate securities	0	0	0
Marketable equity securities	0	0	0
Significant Other Observable Inputs (Level 2) | Other Assets [Member]
ASSETS
Foreign currency derivative instruments	1		6
Marketable equity securities that fund deferred compensation	0	0	0
Significant Other Observable Inputs (Level 2) | Accrued Liabilities [Member]
LIABILITIES
Foreign currency derivative instruments		1
Significant Other Observable Inputs (Level 2) | Long-term Liabilities [Member]
LIABILITIES
Deferred compensation	0	0	0
Foreign currency derivative instruments		2
Money Market Funds [Member] | Significant Unobservable Inputs (Level 3) | Cash and Cash Equivalents [Member]
ASSETS
Cash and cash equivalents	0	0	0
Money Market Funds [Member] | Significant Unobservable Inputs (Level 3) | Short-term Investments [Member]
ASSETS
Short-term investments		0	0
Money Market Funds [Member] | Significant Unobservable Inputs (Level 3) | Other Current Assets [Member]
ASSETS
Restricted cash	0	0	0
US Treasury Securities [Member] | Significant Unobservable Inputs (Level 3) | Short-term Investments [Member]
ASSETS
Short-term investments	0	0
US Treasury Securities [Member] | Significant Unobservable Inputs (Level 3) | Other Current Assets [Member]
ASSETS
Restricted cash	0	0	0
Significant Unobservable Inputs (Level 3) | Cash and Cash Equivalents [Member] | Commercial Paper [Member]
ASSETS
Cash and cash equivalents	0
Significant Unobservable Inputs (Level 3) | Other Current Assets [Member]
ASSETS
Foreign currency derivative instruments	0	0	0
Significant Unobservable Inputs (Level 3) | Equity and Other Investments [Member]
ASSETS
Auction rate securities	88	110	134
Marketable equity securities	0	0	0
Significant Unobservable Inputs (Level 3) | Other Assets [Member]
ASSETS
Foreign currency derivative instruments	0		0
Marketable equity securities that fund deferred compensation	0	0	0
Significant Unobservable Inputs (Level 3) | Accrued Liabilities [Member]
LIABILITIES
Foreign currency derivative instruments		0
Significant Unobservable Inputs (Level 3) | Long-term Liabilities [Member]
LIABILITIES
Deferred compensation	0	0	0
Foreign currency derivative instruments		$ 0