Earnings Per Share (Reconciliation Of The Numerators And The Denominators Of The Basic And Diluted Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]
Income available to common shareholders, basic	$ 112,907	$ 97,829	$ 222,947	$ 186,537
Income available to common shareholders including assumed conversions, diluted	$ 112,907	$ 97,829	$ 222,947	$ 186,537
Basic weighted average shares outstanding	343,800	341,426	343,976	340,671
Stock options and non-vested shares, incremental shares	8,685	9,842	8,738	9,995
Diluted weighted average shares outstanding	352,485	351,268	352,714	350,666
Basic earnings per share	$ 0.33	$ 0.29	$ 0.65	$ 0.55
Diluted earnings per share	$ 0.32	$ 0.28	$ 0.63	$ 0.53