Recent Accounting Pronouncements (Details) (Accounting Standards Update 2013 - 11 [Member], USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Accounting Standards Update 2013 - 11 [Member]
Item Effected [Line Items]
Decrease in current deferred tax assets		$ 22.6
Decrease in noncurrent deferred tax assets	20.7	20.7
Increase in noncurrent deferred tax liabilities	128.9	128.9
Decrease in noncurrent reserves for uncertain tax positions	$ 149.6	$ 172.2