Income Taxes - Components of Comprehensive Provision for Income Taxes Allocation (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Income Tax [Line Items]
United States	$ (70.4)	$ 89.0	$ 51.6
Non-U.S. subsidiaries	(147.5)	212.4	409.2
Income (loss) from continuing operations before income taxes	(217.9)	301.4	460.8
Expected tax expense (benefit) at U.S. federal statutory income tax rate of 35%	(76.3)	105.4	161.3
Non-U.S. tax rates	4.3	(11.9)	(17.1)
Incremental U.S. tax on earnings of non-U.S. and non-tax group companies	(18.5)	1.0	28.8
U.S. state income taxes, net	(3.4)	1.3	4.0
Adjustment to the reserve for uncertain tax positions, net	2.1	4.2	(8.5)
Nondeductible expenses	2.9	4.3	3.7
Tax rate changes	(0.2)	1.9	(0.1)
French dividend surtax		0.3
Other, net	(1.9)	(1.7)	(2.2)
Provision for income taxes (benefit)	(91.0)	104.8	169.9
Income tax expense (benefit)	(91.0)	104.8	169.9
Income from discontinued operations		5.4	5.0
Other comprehensive income (loss), net of tax:
Marketable securities	5.1	(11.6)	7.7
Currency translation	5.5	4.9
Total	(65.3)	84.5	175.1
Defined Benefit Pension Plans
Other comprehensive income (loss), net of tax:
Defined benefit plans	14.1	(18.3)	(6.5)
OPEB
Other comprehensive income (loss), net of tax:
Defined benefit plans	$ 1.0	$ (0.7)	$ (1.0)