Income Taxes, Income Tax Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2009
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 199.2	$ 137.6	$ 136.1
Current Year [Abstract]
Additions	18.1	62.5	15.8
Prior Years [Abstract]
Additions	5.3	0.6	22.6
Reductions	(2.9)	0.0	(2.2)
Settlements	0.0	0.0	(31.1)
Lapses in statutes of limitations	(3.6)	(1.5)	(3.6)
Balance at end of year	216.1	199.2	137.6
Unrecognized tax benefits that would impact effective tax rate	181.8
Tax expense recognized for net interest and penalties in the Consolidated Statements of Operations	2.5	2.8	0.6
Settlement including interest with the IRS related to intercompany R&D cost sharing arrangement			19.6
Maximum [Member]
Prior Years [Abstract]
Decrease in unrecognized tax benefits is reasonably possible	18.6
India Tax Authority [Member]
Prior Years [Abstract]
Penalties and interest accrued related to investigation of 2004 to 2008 tax return by India tax authorities				$ 4.6
Other Long Term Liabilities [Member]
Prior Years [Abstract]
Interest and penalties accrued related to unrecognized tax benefits	$ 24.1	$ 22.3	$ 18.4