Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 03, 2012	Mar. 03, 2012 Carrying amount	Feb. 26, 2011 Carrying amount	Mar. 03, 2012 Fair value	Feb. 26, 2011 Fair value
Financial instruments
Variable rate indebtedness		$ 1,512,313	$ 1,425,019	$ 1,469,813	$ 1,386,861
Fixed rate indebtedness		$ 4,688,904	$ 4,654,548	$ 4,934,587	$ 4,544,974
Reference rate for borrowings under the credit facilities	LIBOR

The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

No definition available.

Name:	us-gaap_LongtermDebtPercentageBearingVariableInterestAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant