Consolidated Statements of Comprehensive Income Parenthetical (Parentheticals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net derivative losses on cash flow hedges, tax impact	$ 0.9	$ 2.1	$ 2.1
Amortization of net actuarial losses, prior service cost, and transition obligation, net of taxes	16.5	15.8	14.5
Adjustments of net actuarial losses and prior service cost, net of taxes	$ 39.2	$ (17.8)	$ (46.9)