Financial Statements of Parent Company Guarantor - Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 126.3	$ 110.4	$ 256.0	$ 237.4
Accounts and notes receivable, net	1,167.7	1,205.9
Inventories	1,174.3	1,130.4
Other current assets	312.3	366.8
Disposal Group, Including Discontinued Operation, Assets, Current	0.0	80.6
Total current assets	2,780.6	2,894.1
Property, plant and equipment, net	942.8	950.0	1,044.3
Other assets
Investments in subsidiaries	0.0	0.0
Goodwill	5,255.4	4,741.9	4,860.7
Intangibles, net	2,490.1	1,608.1
Other non-current assets	388.1	436.2
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	0.0	24.9
Total other assets	8,133.6	6,811.1
Total assets	11,857.0	10,655.2	11,743.3
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.7	6.7
Accounts payable	578.8	583.1
Employee compensation and benefits	262.9	305.5
Other current liabilities	644.1	709.1
Disposal Group, Including Discontinued Operation, Liabilities, Current	0.0	35.1
Total current liabilities	1,486.5	1,639.5
Other liabilities
Long-term debt	4,709.3	2,997.4
Pension and other post-retirement compensation and benefits	287.2	322.0
Deferred tax liabilities	844.2	528.3
Other non-current liabilities	521.0	497.7
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	0.0	6.5
Total liabilities	7,848.2	5,991.4
Equity
Total equity	4,008.8	4,663.8	6,217.7	6,487.5
Total liabilities and equity	11,857.0	10,655.2
Parent Company Guarantor
Current assets
Cash and cash equivalents	0.0	0.0	0.5	0.0
Accounts and notes receivable, net	0.1	0.0
Inventories	0.0	0.0
Other current assets	25.2	0.0
Disposal Group, Including Discontinued Operation, Assets, Current		0.0
Total current assets	25.3	0.0
Property, plant and equipment, net	0.0	0.0
Other assets
Investments in subsidiaries	4,495.6	4,733.0
Goodwill	0.0	0.0
Intangibles, net	0.0	0.0
Other non-current assets	12.6	80.2
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		0.0
Total other assets	4,508.2	4,813.2
Total assets	4,533.5	4,813.2
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.0	0.0
Accounts payable	0.6	0.9
Employee compensation and benefits	0.4	0.2
Other current liabilities	61.7	120.6
Disposal Group, Including Discontinued Operation, Liabilities, Current		0.0
Total current liabilities	62.7	121.7
Other liabilities
Long-term debt	453.3	11.4
Pension and other post-retirement compensation and benefits	0.0	0.0
Deferred tax liabilities	0.0	0.0
Other non-current liabilities	8.7	16.3
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent		0.0
Total liabilities	524.7	149.4
Equity
Total equity	4,008.8	4,663.8
Total liabilities and equity	4,533.5	4,813.2
Guarantor Subsidiaries [Member]
Current assets
Cash and cash equivalents	0.0	0.0	0.0
Accounts and notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Other current assets	12.8	17.6
Disposal Group, Including Discontinued Operation, Assets, Current		0.0
Total current assets	12.8	17.6
Property, plant and equipment, net	0.0	0.0
Other assets
Investments in subsidiaries	4,486.1	4,893.8
Goodwill	0.0	0.0
Intangibles, net	0.0	0.0
Other non-current assets	0.0	0.0
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		0.0
Total other assets	4,486.1	4,893.8
Total assets	4,498.9	4,911.4
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.0	0.0
Accounts payable	0.0	0.0
Employee compensation and benefits	0.1	0.6
Other current liabilities	1.5	2.2
Disposal Group, Including Discontinued Operation, Liabilities, Current		0.0
Total current liabilities	1.6	2.8
Other liabilities
Long-term debt	1.7	175.6
Pension and other post-retirement compensation and benefits	0.0	0.0
Deferred tax liabilities	0.0	0.0
Other non-current liabilities	0.0	0.0
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent		0.0
Total liabilities	3.3	178.4
Equity
Total equity	4,495.6	4,733.0
Total liabilities and equity	4,498.9	4,911.4
Subsidiary Issuer
Current assets
Cash and cash equivalents	0.1	0.1	47.0	0.0
Accounts and notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Other current assets	2.1	2.0
Disposal Group, Including Discontinued Operation, Assets, Current		0.0
Total current assets	2.2	2.1
Property, plant and equipment, net	0.0	0.0
Other assets
Investments in subsidiaries	10,151.1	7,612.2
Goodwill	0.0	0.0
Intangibles, net	0.0	0.0
Other non-current assets	208.5	1,381.8
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		0.0
Total other assets	10,359.6	8,994.0
Total assets	10,361.8	8,996.1
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.0	0.0
Accounts payable	0.3	0.0
Employee compensation and benefits	0.0	0.0
Other current liabilities	27.1	10.9
Disposal Group, Including Discontinued Operation, Liabilities, Current		0.0
Total current liabilities	27.4	10.9
Other liabilities
Long-term debt	4,556.0	2,860.6
Pension and other post-retirement compensation and benefits	0.0	0.0
Deferred tax liabilities	3.1	2.9
Other non-current liabilities	0.0	0.0
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent		0.0
Total liabilities	4,586.5	2,874.4
Equity
Total equity	5,775.3	6,121.7
Total liabilities and equity	10,361.8	8,996.1
Non-Guarantor Subsidiaries
Current assets
Cash and cash equivalents	126.2	110.3	208.5	237.4
Accounts and notes receivable, net	1,167.6	1,206.8
Inventories	1,174.3	1,130.4
Other current assets	310.1	367.6
Disposal Group, Including Discontinued Operation, Assets, Current		80.6
Total current assets	2,778.2	2,895.7
Property, plant and equipment, net	942.8	950.0
Other assets
Investments in subsidiaries	0.0	0.0
Goodwill	5,255.4	4,741.9
Intangibles, net	2,490.1	1,608.1
Other non-current assets	354.2	345.0
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		24.9
Total other assets	8,099.7	6,719.9
Total assets	11,820.7	10,565.6
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.7	6.7
Accounts payable	577.9	583.1
Employee compensation and benefits	262.4	304.7
Other current liabilities	591.7	595.8
Disposal Group, Including Discontinued Operation, Liabilities, Current		35.1
Total current liabilities	1,432.7	1,525.4
Other liabilities
Long-term debt	(114.5)	1,320.6
Pension and other post-retirement compensation and benefits	287.2	322.0
Deferred tax liabilities	841.1	525.4
Other non-current liabilities	512.3	481.4
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent		6.5
Total liabilities	2,958.8	4,181.3
Equity
Total equity	8,861.9	6,384.3
Total liabilities and equity	11,820.7	10,565.6
Eliminations
Current assets
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Accounts and notes receivable, net	0.0	(0.9)
Inventories	0.0	0.0
Other current assets	(37.9)	(20.4)
Disposal Group, Including Discontinued Operation, Assets, Current		0.0
Total current assets	(37.9)	(21.3)
Property, plant and equipment, net	0.0	0.0
Other assets
Investments in subsidiaries	(19,132.8)	(17,239.0)
Goodwill	0.0	0.0
Intangibles, net	0.0	0.0
Other non-current assets	(187.2)	(1,370.8)
Disposal Group, Including Discontinued Operation, Assets, Noncurrent		0.0
Total other assets	(19,320.0)	(18,609.8)
Total assets	(19,357.9)	(18,631.1)
Current liabilities
Current maturities of long-term debt and short-term borrowings	$ 0.0	0.0
Accounts payable		(0.9)
Employee compensation and benefits	$ 0.0	0.0
Other current liabilities	(37.9)	(20.4)
Disposal Group, Including Discontinued Operation, Liabilities, Current		0.0
Total current liabilities	(37.9)	(21.3)
Other liabilities
Long-term debt	(187.2)	(1,370.8)
Pension and other post-retirement compensation and benefits	0.0	0.0
Deferred tax liabilities	0.0	0.0
Other non-current liabilities	0.0	0.0
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent		0.0
Total liabilities	(225.1)	(1,392.1)
Equity
Total equity	(19,132.8)	(17,239.0)
Total liabilities and equity	$ (19,357.9)	$ (18,631.1)