Income Taxes (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Line Items]
Foreign tax credit carryforwards	$ 29.3	$ 14.0
Foreign tax credit carryforwards, expiration date	Dec. 31, 2015
Foreign earnings taxable as dividend	186.6	196.2	118.3
Net operating loss carryforwards, expiration date	Dec. 31, 2017
Unrecognized tax benefits that would impact effective tax rate	43.1	41.7	36.4
Reasonably possible change in unrecognized tax benefits	41.0
Income tax expense (benefit), undistributed foreign earnings not indefinitely reinvested	1,571.6
Undistributed foreign earnings indefinitely reinvested	1,619.2
Income tax expense (benefit), repatriated foreign earnings	491.5
Income tax benefit from tax holidays	$ 1.3	$ 12.7
Income tax benefit from tax holidays (dollars per share)	$ 0.01	$ 0.05
Norway
Income Taxes [Line Items]
Open tax year	2004
Brazil
Income Taxes [Line Items]
Open tax year	2009
United States
Income Taxes [Line Items]
Open tax year	2007
Tax year 2015 [Member] | Malaysia
Income Taxes [Line Items]
Income tax holiday, termination year	12/31/2015
Tax year 2018 [Member] | Singapore
Income Taxes [Line Items]
Income tax holiday, termination year	12/31/2018
Tax year 2018 [Member] | Malaysia
Income Taxes [Line Items]
Income tax holiday, termination year	12/31/2018