Condensed Consolidated Guarantor Financial Information (Schedule Of Condensed Consolidating Balance Sheets) (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 01, 2012	Dec. 31, 2011	Jun. 26, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 544,991	$ 584,088	$ 365,809	$ 208,452
Accounts receivable, net	275,166	286,226
Inventories, net	284,555	298,775
Prepaid expenses and other current assets	24,813	33,405
Prepaid taxes	29,690	28,846
Deferred tax assets	36,526	41,014
Assets held for sale	53,890	7,902
Total current assets	1,249,631	1,280,256
Property, plant and equipment, net	253,684	251,912
Goodwill	1,095,591	1,438,542
Intangibles assets, net	938,129	879,787
Investments in affiliates	1,669	2,008
Deferred tax assets	275	278
Other assets	67,843	71,320
Total assets	3,606,822	3,924,103	3,878,232
Current liabilities
Current borrowings	4,700	4,986
Accounts payable	65,471	67,092
Accrued expenses	83,177	78,160
Payroll and benefit-related liabilities	58,921	64,386
Derivative liabilities	1,669	633
Accrued interest	9,155	10,960
Income taxes payable	12,911	21,084
Current liability for uncertain tax positions	3,910	22,656
Deferred tax liabilities	1,011	1,050
Liabilities held for sale	1,749
Total current liabilities	242,674	271,007
Long-term borrowings	959,945	954,809
Deferred tax liabilities	397,454	420,833
Pension and other postretirement benefit liabilities	182,461	194,984
Noncurrent liability for uncertain tax positions	60,226	61,688
Other liabilities	72,048	37,999
Total liabilities	1,914,808	1,941,320
Total common shareholders' equity	1,689,470	1,980,588
Noncontrolling interest	2,544	2,195
Total equity	1,692,014	1,982,783	1,950,337	1,787,278
Total liabilities and equity	3,606,822	3,924,103
Parent Company [Member]
Current assets
Cash and cash equivalents	43,661	114,531	176,973	22,632
Accounts receivable, net	298	269
Prepaid expenses and other current assets	5,618	7,203
Prepaid taxes	24,868	24,006
Deferred tax assets	5,974	8,659
Total current assets	80,419	154,668
Property, plant and equipment, net	4,814	8,208
Investments in affiliates	5,028,619	5,244,275
Deferred tax assets	68,877	65,400
Other assets	40,517	42,183
Total assets	5,223,246	5,514,734
Current liabilities
Accounts payable	80,859	101,907
Accrued expenses	15,650	23,208
Payroll and benefit-related liabilities	27,847	24,031
Derivative liabilities	1,669	633
Accrued interest	9,149	10,948
Total current liabilities	135,174	160,727
Long-term borrowings	959,945	954,809
Pension and other postretirement benefit liabilities	133,478	145,533
Noncurrent liability for uncertain tax positions	13,869	12,678
Other liabilities	2,291,310	2,260,399
Total liabilities	3,533,776	3,534,146
Total common shareholders' equity	1,689,470	1,980,588
Total equity	1,689,470	1,980,588
Total liabilities and equity	5,223,246	5,514,734
Guarantor Subsidiaries [Member]
Current assets
Accounts receivable, net	309,132	304,813
Inventories, net	184,257	201,147
Prepaid expenses and other current assets	3,985	3,675
Deferred tax assets	24,938	26,886
Assets held for sale	48,939	2,738
Total current assets	571,251	539,259
Property, plant and equipment, net	154,455	149,300
Goodwill	668,818	1,001,353
Intangibles assets, net	775,299	711,962
Investments in affiliates	1,067,840	922,208
Other assets	2,555,041	2,534,124
Total assets	5,792,704	5,858,206
Current liabilities
Accounts payable	390,475	387,612
Accrued expenses	32,283	25,407
Payroll and benefit-related liabilities	7,389	13,867
Liabilities held for sale	1,750
Total current liabilities	431,897	426,886
Deferred tax liabilities	414,573	433,078
Pension and other postretirement benefit liabilities	34,383	34,034
Noncurrent liability for uncertain tax positions	17,602	18,437
Other liabilities	56,432	5,583
Total liabilities	954,887	918,018
Total common shareholders' equity	4,837,817	4,940,188
Total equity	4,837,817	4,940,188
Total liabilities and equity	5,792,704	5,858,206
Non-Guarantor Subsidiaries [Member]
Current assets
Cash and cash equivalents	501,330	469,557	188,836	185,820
Accounts receivable, net	441,490	464,834
Inventories, net	112,050	107,188
Prepaid expenses and other current assets	15,210	22,527
Prepaid taxes	4,822	4,869
Deferred tax assets	6,034	5,883
Assets held for sale	4,951	5,164
Total current assets	1,085,887	1,080,022
Property, plant and equipment, net	94,415	94,404
Goodwill	426,773	437,189
Intangibles assets, net	162,830	167,825
Investments in affiliates	20,189	20,327
Deferred tax assets	2,206	2,387
Other assets	161,707	164,662
Total assets	1,954,007	1,966,816
Current liabilities
Current borrowings	4,700	4,986
Accounts payable	73,012	64,694
Accrued expenses	35,244	29,545
Payroll and benefit-related liabilities	23,685	26,488
Accrued interest	6	12
Income taxes payable	12,911	21,113
Current liability for uncertain tax positions	3,910	22,656
Deferred tax liabilities	1,431	1,465
Liabilities held for sale	(1)
Total current liabilities	154,898	170,959
Deferred tax liabilities	53,689	55,264
Pension and other postretirement benefit liabilities	14,600	15,417
Noncurrent liability for uncertain tax positions	28,755	30,573
Other liabilities	416,841	443,875
Total liabilities	668,783	716,088
Total common shareholders' equity	1,282,680	1,248,533
Noncontrolling interest	2,544	2,195
Total equity	1,285,224	1,250,728
Total liabilities and equity	1,954,007	1,966,816
Eliminations [Member]
Current assets
Accounts receivable, net	(475,754)	(483,690)
Inventories, net	(11,752)	(9,560)
Prepaid taxes		(29)
Deferred tax assets	(420)	(414)
Total current assets	(487,926)	(493,693)
Investments in affiliates	(6,114,979)	(6,184,802)
Deferred tax assets	(70,808)	(67,509)
Other assets	(2,689,422)	(2,669,649)
Total assets	(9,363,135)	(9,415,653)
Current liabilities
Accounts payable	(478,875)	(487,121)
Income taxes payable		(29)
Deferred tax liabilities	(420)	(415)
Total current liabilities	(479,295)	(487,565)
Deferred tax liabilities	(70,808)	(67,509)
Other liabilities	(2,692,535)	(2,671,858)
Total liabilities	(3,242,638)	(3,226,932)
Total common shareholders' equity	(6,120,497)	(6,188,721)
Total equity	(6,120,497)	(6,188,721)
Total liabilities and equity	$ (9,363,135)	$ (9,415,653)