Discontinued Operations (Schedule Of Discontinued Operations - Key Components Of Income From Discontinued Operations) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 29, 2012	Jul. 01, 2011	Jun. 29, 2012	Jul. 01, 2011
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 0	$ 88,800,000	$ 9,900,000	$ 239,900,000
Operating expenses	0	(76,500,000)	(11,200,000)	(207,000,000)
Allocated interest expense	0	(300,000)	0	(1,200,000)
Earnings (loss) before income taxes	0	12,000,000	(1,300,000)	31,700,000
Income tax (expense) benefit	0	(4,500,000)	500,000	(11,600,000)
Earnings (loss) from discontinued operations	0	7,500,000	(800,000)	20,100,000
Gain on sale, net of $55 million of related income taxes for the six month period ended June 29, 2012 and $126 million of related income taxes for the three and six month periods ended July 1, 2011, respectively	0	201,700,000	93,700,000	201,700,000
Earnings from discontinued operations, net of income taxes	0	209,214,000	92,858,000	221,797,000
Income taxes related to the gain on the sale			$ 55,000,000	$ 126,000,000