Condensed Consolidated Guarantor Financial Information (Schedule Of Condensed Consolidating Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Apr. 01, 2012	Dec. 31, 2011	Mar. 27, 2011	Dec. 31, 2010
Cash and cash equivalents	$ 590,921	$ 584,088	$ 202,298	$ 208,452
Accounts receivable, net	310,926	286,226
Inventories, net	298,971	298,775
Prepaid expenses and other current assets	36,939	33,405
Prepaid taxes	37,677	28,846
Deferred tax assets	39,312	41,014
Assets held for sale	8,026	7,902
Total current assets	1,322,772	1,280,256
Property, plant and equipment, net	263,415	251,912
Goodwill	1,119,696	1,438,542
Intangibles assets, net	871,711	879,787
Investments in affiliates	1,847	2,008
Deferred tax assets	292	278
Other assets	70,153	71,320
Total assets	3,649,886	3,924,103	3,678,803
Current borrowings	4,700	4,986
Accounts payable	62,330	67,092
Accrued expenses	84,509	78,160
Payroll and benefit-related liabilities	58,367	64,386
Derivative liabilities	1,496	633
Accrued interest	11,618	10,960
Income taxes payable	27,761	21,084
Current liability for uncertain tax positions	23,484	22,656
Deferred tax liabilities	1,081	1,050
Total current liabilities	275,346	271,007
Long-term borrowings	957,360	954,809
Deferred tax liabilities	412,656	420,833
Pension and other postretirement benefit liabilities	187,064	194,984
Noncurrent liability for uncertain tax positions	63,037	61,688
Other liabilities	32,577	37,999
Total liabilities	1,928,040	1,941,320
Total common shareholders' equity	1,719,346	1,980,588
Noncontrolling interest	2,500	2,195
Total equity	1,721,846	1,982,783	1,888,988	1,787,278
Total liabilities and equity	3,649,886	3,924,103
Parent Company [Member]
Cash and cash equivalents	94,646	114,531	31,748	22,632
Accounts receivable, net	555	269
Prepaid expenses and other current assets	7,600	7,203
Prepaid taxes	27,510	24,006
Deferred tax assets	7,300	8,659
Total current assets	137,611	154,668
Property, plant and equipment, net	11,460	8,208
Investments in affiliates	5,019,605	5,245,520
Deferred tax assets	64,488	65,400
Other assets	41,467	42,183
Total assets	5,274,631	5,515,979
Accounts payable	75,815	101,907
Accrued expenses	22,798	23,208
Payroll and benefit-related liabilities	23,690	24,031
Derivative liabilities	1,496	633
Accrued interest	11,612	10,948
Total current liabilities	135,411	160,727
Long-term borrowings	957,360	954,809
Pension and other postretirement benefit liabilities	137,539	145,533
Noncurrent liability for uncertain tax positions	13,288	12,678
Other liabilities	2,311,687	2,261,644
Total liabilities	3,555,285	3,535,391
Total common shareholders' equity	1,719,346	1,980,588
Total equity	1,719,346	1,980,588
Total liabilities and equity	5,274,631	5,515,979
Guarantor Subsidiaries [Member]
Accounts receivable, net	303,839	304,813
Inventories, net	194,630	201,147
Prepaid expenses and other current assets	4,294	3,675
Deferred tax assets	26,269	26,886
Assets held for sale	2,738	2,738
Total current assets	531,770	539,259
Property, plant and equipment, net	151,221	149,300
Goodwill	670,260	1,001,353
Intangibles assets, net	702,768	711,962
Investments in affiliates	983,656	922,208
Other assets	2,567,079	2,534,124
Total assets	5,606,754	5,858,206
Accounts payable	382,174	387,612
Accrued expenses	26,693	25,407
Payroll and benefit-related liabilities	8,280	13,867
Total current liabilities	417,147	426,886
Deferred tax liabilities	417,424	433,078
Pension and other postretirement benefit liabilities	33,907	34,034
Noncurrent liability for uncertain tax positions	18,281	18,437
Other liabilities	183	5,749
Total liabilities	886,942	918,184
Total common shareholders' equity	4,719,812	4,940,022
Total equity	4,719,812	4,940,022
Total liabilities and equity	5,606,754	5,858,206
Non-Guarantor Subsidiaries [Member]
Cash and cash equivalents	496,275	469,557	170,550	185,820
Accounts receivable, net	494,396	464,834
Inventories, net	115,861	107,188
Prepaid expenses and other current assets	25,045	22,527
Prepaid taxes	10,167	4,869
Deferred tax assets	6,163	5,883
Assets held for sale	5,288	5,164
Total current assets	1,153,195	1,080,022
Property, plant and equipment, net	100,734	94,404
Goodwill	449,436	437,189
Intangibles assets, net	168,943	167,825
Investments in affiliates	20,292	20,327
Deferred tax assets	2,008	2,387
Other assets	173,760	164,662
Total assets	2,068,368	1,966,816
Current borrowings	4,700	4,986
Accounts payable	95,283	64,694
Accrued expenses	35,018	29,545
Payroll and benefit-related liabilities	26,397	26,488
Accrued interest	6	12
Income taxes payable	27,761	21,113
Current liability for uncertain tax positions	23,484	22,656
Deferred tax liabilities	1,501	1,465
Total current liabilities	214,150	170,959
Deferred tax liabilities	61,436	55,264
Pension and other postretirement benefit liabilities	15,618	15,417
Noncurrent liability for uncertain tax positions	31,468	30,573
Other liabilities	435,352	442,464
Total liabilities	758,024	714,677
Total common shareholders' equity	1,307,844	1,249,944
Noncontrolling interest	2,500	2,195
Total equity	1,310,344	1,252,139
Total liabilities and equity	2,068,368	1,966,816
Eliminations [Member]
Accounts receivable, net	(487,864)	(483,690)
Inventories, net	(11,520)	(9,560)
Prepaid taxes		(29)
Deferred tax assets	(420)	(414)
Total current assets	(499,804)	(493,693)
Investments in affiliates	(6,021,706)	(6,186,047)
Deferred tax assets	(66,204)	(67,509)
Other assets	(2,712,153)	(2,669,649)
Total assets	(9,299,867)	(9,416,898)
Accounts payable	(490,942)	(487,121)
Income taxes payable		(29)
Deferred tax liabilities	(420)	(415)
Total current liabilities	(491,362)	(487,565)
Deferred tax liabilities	(66,204)	(67,509)
Other liabilities	(2,714,645)	(2,671,858)
Total liabilities	(3,272,211)	(3,226,932)
Total common shareholders' equity	(6,027,656)	(6,189,966)
Total equity	(6,027,656)	(6,189,966)
Total liabilities and equity	$ (9,299,867)	$ (9,416,898)