Quarterly Financial Data (Schedule Of Quarterly Financial Data) (Details) (USD $) In Thousands, except Per Share data	3 Months Ended								12 Months Ended
	Sep. 30, 2011	Jul. 01, 2011	Apr. 01, 2011	Dec. 31, 2010	Oct. 01, 2010	Jul. 02, 2010	Apr. 02, 2010	Jan. 01, 2010	Sep. 30, 2011	Oct. 01, 2010	Oct. 02, 2009
Quarterly Financial Data [Abstract]
Total revenues	$ 719,000	$ 649,400	$ 648,400	$ 579,900	$ 652,100	$ 578,000	$ 585,600	$ 540,900	$ 2,596,666	$ 2,356,585	$ 2,214,060
Gross margin	300,300	279,800	289,000	266,800	276,200	254,400	254,000	241,000	1,135,889	1,025,642	960,505
Net earnings from continuing operations	110,400	98,600	103,100	96,500	105,700	91,900	91,100	78,800	408,626	367,481	331,476
Net loss from discontinued operations	(9,700)	0	0	0	(700)	(6,400)	0	0	(9,693)	(7,059)	(12,454)
Net earnings	$ 100,700	$ 98,600	$ 103,100	$ 96,500	$ 105,000	$ 85,500	$ 91,100	$ 78,800	$ 398,933	$ 360,422	$ 319,022
Net earnings (loss) per share-basic, Continuing operations	$ 0.97	$ 0.84	$ 0.87	$ 0.82	$ 0.89	$ 0.75	$ 0.74	$ 0.64	$ 3.50	$ 3.02	$ 2.67
Net earnings (loss) per share-basic, Discontinued operations	$ (0.09)	$ 0.00	$ 0.00	$ 0.00	$ (0.01)	$ (0.05)	$ 0.00	$ 0.00	$ (0.08)	$ (0.06)	$ (0.10)
Net earnings per share, basic	$ 0.88	$ 0.84	$ 0.87	$ 0.82	$ 0.88	$ 0.70	$ 0.74	$ 0.64	$ 3.42	$ 2.96	$ 2.57
Net earnings (loss) per share-diluted, Continuing operations	$ 0.95	$ 0.83	$ 0.86	$ 0.80	$ 0.87	$ 0.74	$ 0.73	$ 0.63	$ 3.44	$ 2.96	$ 2.65
Net earnings (loss) per share-diluted, Discontinued operations	$ (0.08)	$ 0.00	$ 0.00	$ 0.00	$ 0.00	$ (0.05)	$ 0.00	$ 0.00	$ (0.08)	$ (0.05)	$ (0.10)
Net earnings per share, diluted	$ 0.87	$ 0.83	$ 0.86	$ 0.80	$ 0.87	$ 0.69	$ 0.73	$ 0.63	$ 3.36	$ 2.91	$ 2.55