Employee Benefit Plans (Reconciliation of the Beginning and Ending Balances for Investments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Purchases and sales, net	$ (10.4)
Level 3 [Member]
Beginning balance	13.5	15.9
Actual return on plan assets held	(0.5)	(2.6)
Foreign currency changes	(0.3)	0.2
Ending balance	$ 2.3	$ 13.5