CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (DEFICIT) (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Currency translation adjustment, tax	$ 2.8	$ 0.6	$ 0.2
Net actuarial losses and prior service costs - Tax	7.1	(37.1)	21.0
Amortization of actuarial losses and prior service costs included in net income - Tax	5.2	2.8	4.9
Net unrealized gain on cash flow hedges, tax	$ 10.7	$ 12.9	$ 3.1