Income Taxes - Income Tax Reconciliation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Income taxes at U.S. statutory rate of 35%									$ 266.4	$ 268.1	$ 167.3
Income from non-U.S. sources, including withholding taxes									(58.3)	(74.8)	(55.8)
Affiliates' earnings									(15.0)	(13.4)	(13.8)
State taxes, net of federal benefit									2.2	1.1	1.4
Business and foreign tax credits									8.8	11.5	0.2
Accrual adjustment and settlement of prior year tax matters									9.3	(1.0)	0.4
Medicare Part D									0	0.1	2.9
Capital loss carryforward valuation allowance									9.7	0	0
Reversal of foreign tax credit valuation allowance									0	0	(21.2)
Unremitted foreign earnings									13.4	0	0
Non-temporary differences and other									2.1	3.7	0.3
Provision for income taxes	48.4	64.2	68.5	57.5	58.2	46.4	49.8	40.9	238.6	195.3	81.7
Tax benefit (expense) associated with disposal activities and restructuring									(2.0)
Tax benefit associated with restructuring		7.7							7.7
Tax impact of loss on disposals		11.2	(5.5)		(1.4)				5.7	2.7
Tax benefit associated retirement obligations									6.1
Other tax adjustments	3.9	6.9					6.2		19.8
Tax settlements									5.9
Impact of change in repatriation assertion			9.0						7.5
Change in enacted tax rate									4.7
Tax impact of writedown of tax accounts									11.1
Tax impact of patent infringement settlement										11.0
Favorable Impact Due Reversal Of Company Valuation Allowance											21.2
Additional Tax Expense For Company's Loss Of Future Tax Benefit											2.9
Tax impact of equity investment gain											2.3
Tax impact of environmental litigation settlement											$ 9.8