Financial Statements of Parent Company Guarantor - Condensed Consolidating Balance Sheet (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 238.5	$ 126.3	$ 110.4	$ 256.0
Accounts and notes receivable, net	764.0	773.2
Inventories	524.2	564.7
Other current assets	253.4	220.0
Current assets held for sale	891.9	1,093.4
Total current assets	2,672.0	2,777.6
Property, plant and equipment, net	538.6	539.8	509.7
Other assets
Investments in subsidiaries	0.0	0.0
Goodwill	4,217.4	4,259.0	3,230.3
Intangibles, net	1,631.8	1,747.4
Other non-current assets	182.1	161.1
Non-current assets held for sale	2,292.9	2,348.6
Total other assets	8,324.2	8,516.1
Total assets	11,534.8	11,833.5	10,643.8
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.8	0.0
Accounts payable	436.6	403.8
Employee compensation and benefits	166.1	162.6
Other current liabilities	511.5	487.1
Disposal Group, Including Discontinued Operation, Liabilities, Current	356.2	433.0
Total current liabilities	1,471.2	1,486.5
Other liabilities
Long-term debt	4,278.4	4,685.8
Pension and other post-retirement compensation and benefits	253.4	244.6
Deferred tax liabilities	609.5	670.2
Other non-current liabilities	162.0	192.4
Non-current liabilities held for sale	505.9	545.2
Total liabilities	7,280.4	7,824.7
Equity
Total equity	4,254.4	4,008.8	4,663.8	6,217.7
Total liabilities and equity	11,534.8	11,833.5
Parent Company Guarantor
Current assets
Cash and cash equivalents	0.0	0.0	0.0	0.5
Accounts and notes receivable, net	0.1	0.1
Inventories	0.0	0.0
Other current assets	1.2	25.2
Current assets held for sale	0.0	0.0
Total current assets	1.3	25.3
Property, plant and equipment, net	0.0	0.0
Other assets
Investments in subsidiaries	4,509.5	4,495.6
Goodwill	0.0	0.0
Intangibles, net	0.0	0.0
Other non-current assets	2.2	12.6
Non-current assets held for sale	0.0	0.0
Total other assets	4,511.7	4,508.2
Total assets	4,513.0	4,533.5
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.0
Accounts payable	0.7	0.6
Employee compensation and benefits	0.8	0.4
Other current liabilities	95.2	61.7
Disposal Group, Including Discontinued Operation, Liabilities, Current	0.0	0.0
Total current liabilities	96.7	62.7
Other liabilities
Long-term debt	148.1	453.3
Pension and other post-retirement compensation and benefits	0.0	0.0
Deferred tax liabilities	0.0	0.0
Other non-current liabilities	13.8	8.7
Non-current liabilities held for sale	0.0	0.0
Total liabilities	258.6	524.7
Equity
Total equity	4,254.4	4,008.8
Total liabilities and equity	4,513.0	4,533.5
Guarantor Subsidiaries [Member]
Current assets
Cash and cash equivalents	0.0	0.0	0.0	0.0
Accounts and notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Other current assets	4.1	12.8
Current assets held for sale	0.0	0.0
Total current assets	4.1	12.8
Property, plant and equipment, net	0.0	0.0
Other assets
Investments in subsidiaries	4,471.4	4,486.1
Goodwill	0.0	0.0
Intangibles, net	0.0	0.0
Other non-current assets	35.2	0.0
Non-current assets held for sale	0.0	0.0
Total other assets	4,506.6	4,486.1
Total assets	4,510.7	4,498.9
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.0
Accounts payable	0.0	0.0
Employee compensation and benefits	0.0	0.1
Other current liabilities	1.2	1.5
Disposal Group, Including Discontinued Operation, Liabilities, Current	0.0	0.0
Total current liabilities	1.2	1.6
Other liabilities
Long-term debt	0.0	1.7
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
Non-current liabilities held for sale	0.0	0.0
Total liabilities	1.2	3.3
Equity
Total equity	4,509.5	4,495.6
Total liabilities and equity	4,510.7	4,498.9
Subsidiary Issuer
Current assets
Cash and cash equivalents	0.0	0.1	0.1	47.0
Accounts and notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Other current assets	1.1	0.0
Current assets held for sale	0.0	0.0
Total current assets	1.1	0.1
Property, plant and equipment, net	0.0	0.0
Other assets
Investments in subsidiaries	9,295.5	10,151.1
Goodwill	0.0	0.0
Intangibles, net	0.0	0.0
Other non-current assets	717.8	190.1
Non-current assets held for sale	0.0	0.0
Total other assets	10,013.3	10,341.2
Total assets	10,014.4	10,341.3
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.0
Accounts payable	0.1	0.3
Employee compensation and benefits	0.0	0.0
Other current liabilities	26.7	27.1
Disposal Group, Including Discontinued Operation, Liabilities, Current	0.0	0.0
Total current liabilities	26.8	27.4
Other liabilities
Long-term debt	5,515.9	4,535.5
Pension and other post-retirement compensation and benefits	0.0	0.0
Deferred tax liabilities	0.0	3.1
Other non-current liabilities	0.0	0.0
Non-current liabilities held for sale	0.0	0.0
Total liabilities	5,542.7	4,566.0
Equity
Total equity	4,471.7	5,775.3
Total liabilities and equity	10,014.4	10,341.3
Non-Guarantor Subsidiaries
Current assets
Cash and cash equivalents	238.5	126.2	110.3	208.5
Accounts and notes receivable, net	763.9	773.1
Inventories	524.2	564.7
Other current assets	237.8	219.9
Current assets held for sale	891.9	1,093.4
Total current assets	2,656.3	2,777.3
Property, plant and equipment, net	538.6	539.8
Other assets
Investments in subsidiaries	0.0	0.0
Goodwill	4,217.4	4,259.0
Intangibles, net	1,631.8	1,747.4
Other non-current assets	1,568.9	145.6
Non-current assets held for sale	2,292.9	2,348.6
Total other assets	9,711.0	8,500.6
Total assets	12,905.9	11,817.7
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.8
Accounts payable	435.8	402.9
Employee compensation and benefits	165.3	162.1
Other current liabilities	379.2	434.7
Disposal Group, Including Discontinued Operation, Liabilities, Current	356.2	433.0
Total current liabilities	1,337.3	1,432.7
Other liabilities
Long-term debt	756.4	(117.5)
Pension and other post-retirement compensation and benefits	253.4	244.6
Deferred tax liabilities	609.5	667.1
Other non-current liabilities	148.2	183.7
Non-current liabilities held for sale	505.9	545.2
Total liabilities	3,610.7	2,955.8
Equity
Total equity	9,295.2	8,861.9
Total liabilities and equity	12,905.9	11,817.7
Eliminations
Current assets
Cash and cash equivalents	0.0	0.0	$ 0.0	$ 0.0
Accounts and notes receivable, net	0.0	0.0
Inventories	0.0	0.0
Other current assets	9.2	(37.9)
Current assets held for sale	0.0	0.0
Total current assets	9.2	(37.9)
Property, plant and equipment, net	0.0	0.0
Other assets
Investments in subsidiaries	(18,276.4)	(19,132.8)
Goodwill	0.0	0.0
Intangibles, net	0.0	0.0
Other non-current assets	(2,142.0)	(187.2)
Non-current assets held for sale	0.0	0.0
Total other assets	(20,418.4)	(19,320.0)
Total assets	(20,409.2)	(19,357.9)
Current liabilities
Current maturities of long-term debt and short-term borrowings	0.0
Accounts payable	0.0	0.0
Employee compensation and benefits	0.0	0.0
Other current liabilities	9.2	(37.9)
Disposal Group, Including Discontinued Operation, Liabilities, Current	0.0	0.0
Total current liabilities	9.2	(37.9)
Other liabilities
Long-term debt	(2,142.0)	(187.2)
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
Non-current liabilities held for sale	0.0	0.0
Total liabilities	(2,132.8)	(225.1)
Equity
Total equity	(18,276.4)	(19,132.8)
Total liabilities and equity	$ (20,409.2)	$ (19,357.9)