Earnings Per Share (Computations Of Basic And Diluted Net Earnings Per Share) (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Earnings Per Share [Line Items]
Basic net earnings	$ 112,299	$ 299,773	$ 257,403	$ 459,614
Earnings allocated to participating securities	(422)	(1,048)	(830)	(1,647)
Net earnings available to common stockholders	111,877	298,725	256,573	457,967
Average shares outstanding	317,975	316,811	317,832	316,702
Basic net earnings per share	$ 0.35	$ 0.94	$ 0.81	$ 1.45
Diluted net earnings	112,299	299,773	257,403	459,614
Earnings allocated to participating securities	(422)	(1,048)	(830)	(1,647)
Net earnings available to common stockholders	$ 111,877	$ 298,725	$ 256,573	$ 457,967
Basic shares outstanding	317,975	316,811	317,832	316,702
Dilutive effect of stock options and other	65	211	78	246
Diluted average shares outstanding	318,040	317,022	317,910	316,948
Diluted net earnings per share	$ 0.35	$ 0.94	$ 0.81	$ 1.44