Accounting Policies Schedule of Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Feb. 12, 2015	Dec. 31, 2014
Venezuela foreign currency devaluation		88.00%			70.00%
Exchange rate net charges, total	$ (3.0)	$ 42.0
Exchange rate net charges on other expense, net	(4.0)	54.0
Exchange rate net charges on income taxes	1.0	(12.0)
Venezuelan non-monetary assets remeasurement in operating profit			$ 11.0	$ 18.0
Charge for Venezuelan non-monetary assets to their net realizable value	11.0	$ 116.0
Impairment of Venezuela long-lived assets	90.0		90.0
Property, plant and equipment at carrying value			$ 1,036.4			$ 1,231.0
Repayments of debt [Member]
Prior Period Reclassification Adjustment				25.3
Income tax receivables [Member]
Prior Period Reclassification Adjustment				(14.1)
Proceeds from debt [Member]
Prior Period Reclassification Adjustment				9.2
Debt, net [Member]
Prior Period Reclassification Adjustment				$ 16.1
VENEZUELA
Property, plant and equipment at carrying value	$ 15.7