Accumulated Other Comprehensive Income (Loss) - Details of Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015		Jun. 30, 2016		Jun. 30, 2015
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (loss), Net of Taxes, beginning balance					$ (820.0)	[1]	$ (613.8)
Other comprehensive income (loss) before reclassifications					3.0		(64.8)
Less: amounts reclassified from accumulated other comprehensive income (loss)					(26.5)		(5.5)
Other comprehensive income (loss), net of taxes		$ 10.8	$ (8.8)	[2]	(23.5)		(70.3)	[2]
Accumulated Other Comprehensive Income (loss), Net of Taxes ending balance	[3]	(843.5)	(684.1)	[4]	(843.5)		(684.1)	[4]
Unrecognized Pension Items
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (loss), Net of Taxes, beginning balance					(266.0)		(250.1)
Other comprehensive income (loss) before reclassifications					0.2		3.3
Less: amounts reclassified from accumulated other comprehensive income (loss)					3.6		4.1
Other comprehensive income (loss), net of taxes					3.8		7.4
Accumulated Other Comprehensive Income (loss), Net of Taxes ending balance	[3]	(262.2)	(242.7)	[4]	(262.2)		(242.7)	[4]
Cumulative Translation Adjustment
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (loss), Net of Taxes, beginning balance					(564.0)		(369.9)
Other comprehensive income (loss) before reclassifications					30.5		(59.2)
Less: amounts reclassified from accumulated other comprehensive income (loss)					(46.0)
Other comprehensive income (loss), net of taxes					(15.5)		(59.2)
Accumulated Other Comprehensive Income (loss), Net of Taxes ending balance	[3]	(579.5)	(429.1)	[4]	(579.5)		(429.1)	[4]
Unrecognized Gains (Losses) on Derivative Instruments | Net Investment Hedge [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (loss), Net of Taxes, beginning balance					1.7
Other comprehensive income (loss) before reclassifications					(7.1)		(19.3)
Other comprehensive income (loss), net of taxes					(7.1)		(19.3)
Accumulated Other Comprehensive Income (loss), Net of Taxes ending balance	[3]	(5.4)	(19.3)	[4]	(5.4)		(19.3)	[4]
Unrecognized Gains (Losses) on Derivative Instruments | Cash Flow Hedge [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (loss), Net of Taxes, beginning balance					8.3		6.2
Other comprehensive income (loss) before reclassifications					(20.6)		10.4
Less: amounts reclassified from accumulated other comprehensive income (loss)					15.9		(9.6)
Other comprehensive income (loss), net of taxes					(4.7)		0.8
Accumulated Other Comprehensive Income (loss), Net of Taxes ending balance	[3]	$ 3.6	$ 7.0	[4]	$ 3.6		$ 7.0	[4]

[1] As of January 1, 2016, we have adopted ASU 2015-03 and ASU 2015-15 with retrospective application. This resulted in a reclassification from other non-current assets to long-term debt, less current portion for debt issuance costs. Refer to Note 2, “Recently Issued Accounting Standards” of the notes to the condensed consolidated financial statements for further details.

[2] For the three and six months ended June 30, 2015, certain foreign currency translation adjustments were misclassified on the Condensed Consolidated Statement of Comprehensive Income in deferred pension items and unrealized losses on cash flow hedge derivative instruments. See Note 1 “Organization and Basis of Presentation” under the heading “Reclassifications and Revisions” for further discussion of the revisions.

[3] The ending balance in AOCI includes gains and losses on intra-entity foreign currency transactions. The intra-entity currency translation adjustment was $(23.3) million as of June 30, 2016 and $36.6 million as of June 30, 2015.

[4] For the six months ended June 30, 2015, certain foreign currency translation adjustments were misclassified within Accumulated Other Comprehensive Loss (“AOCI”) on the Consolidated Balance Sheet.  Refer Note 2 “Summary of Significant Accounting Policies and Recently Issued Accounting Standards” under the heading “Reclassifications and Revisions” for further discussion of the revisions.