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Debt (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 3 Months Ended
Jan. 25, 2013
Jan. 27, 2012
Jan. 25, 2013
Senior Notes Due 2022 At 4.20% [Member]
Jan. 27, 2012
Senior Notes Due 2022 At 4.20% [Member]
Jan. 25, 2013
Senior Notes Due 2012 At 5.625% [Member]
May 01, 2012
Senior Notes Due 2012 At 5.625% [Member]
Debt Instrument [Line Items]            
Unsecured senior notes     $ 400,000 $ 400,000   $ 200,000
Interest rate of debt instrument       4.20%   5.625%
Proceeds from issuance of debt $ 0 $ 396,816        
Debt instrument, maturity date     Jan. 15, 2022   May 01, 2012