Income Taxes (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Mar. 31, 2011 Singapore	Dec. 31, 2012 Singapore	Dec. 31, 2012 Malaysia	Dec. 31, 2012 Pro Forma	Dec. 31, 2012 Pro Forma	Dec. 31, 2011 Deferred tax liability adjustment
Income Taxes [Line Items]
Prior period reclassification adjustment										$ 32.3
Foreign tax credit carryforwards		2.6	1.4
Foreign tax credit carryforwards, expiration date		Dec. 31, 2021
Foreign earnings taxable as dividend		118.3	169.3	341.2
Net operating loss carryforwards, expiration date		12/31/2013
Unrecognized tax benefits that would impact effective tax rate	41.3	36.4	42.2	41.3
Possible change in unrecognized tax benefits		16.0
Benefit obtained from authorities	27.6
Subsequent Event, Effect of Change in Tax Status								7.1
Subsequent event, effective income tax rate, continuing operations (as a percent)		28.00%	27.00%	30.00%					27.00%
Subsequent event, increase in deferred tax assets, tax credit carryforwards, foreign									5.1
Income tax expense (benefit), undistributed foreign earnings not indefinitely reinvested		1,105.2
Undistributed foreign earnings indefinitely reinvested		1,279.0
Income tax expense (benefit), repatriated foreign earnings		317.4
Income tax holiday, termination year						12/31/2018	12/31/2015
Reduction in provision for income taxes		$ 9.6			$ 7.3
Reduction in per share on a diluted basis (dollars per share)		$ 0.04			$ 0.03