Income Taxes, Income Tax Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2009
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 216.1	$ 199.2	$ 137.6
Current Year [Abstract]
Additions	27.2	18.1	62.5
Prior Years [Abstract]
Additions	1.0	5.3	0.6
Reductions	(4.1)	(2.9)	0.0
Settlements	(14.3)	0.0	0.0
Lapses in statutes of limitations	(2.8)	(3.6)	(1.5)
Balance at end of year	223.1	216.1	199.2
Unrecognized tax benefits that would impact effective tax rate	194.7
Tax expense recognized for net interest and penalties in the Consolidated Statements of Operations	6.0	2.5	2.8
Decrease in unrecognized tax benefits reasonably possible next twelve months	3.7
State and Local Jurisdiction [Member] | California Franchise Tax Board [Member]
Prior Years [Abstract]
Reductions	(14.3)
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	$ 31.3	$ 24.1	$ 22.3