Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2016		Jun. 30, 2015		Jun. 30, 2016		Jun. 30, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ (994.9)		$ (930.8)		$ (1,014.5)		$ (931.4)
OCI before reclassifications	8.0		12.3		12.3		2.1
Amounts reclassified from AOCI	13.2		11.2		28.5		22.0
Net current-period OCI	21.2		23.5		40.8		24.1
Ending balance	(973.7)		(907.3)		(973.7)		(907.3)
Increase (Decrease) in Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	17.9		24.8		19.4		25.0
OCI before reclassifications	(1.5)		0.5		(3.0)		0.3
Amounts reclassified from AOCI	0.0		0.0		0.0		0.0
Net current-period OCI	(1.5)		0.5		(3.0)		0.3
Ending balance	16.4		25.3		16.4		25.3
Post- retirement benefit plans [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(925.1)		(919.0)		(951.2)		(931.5)
OCI before reclassifications	0.0		0.0		13.9		0.0
Amounts reclassified from AOCI	11.4	[1]	12.5	[2]	23.6	[1]	25.0	[2]
Net current-period OCI	11.4		12.5		37.5		25.0
Ending balance	(913.7)		(906.5)		(913.7)		(906.5)
Increase (Decrease) in Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	0.0		0.0		0.0		0.0
OCI before reclassifications	0.0		0.0		0.0		0.0
Amounts reclassified from AOCI	0.0		0.0		0.0		0.0
Net current-period OCI	0.0		0.0		0.0		0.0
Ending balance	0.0		0.0		0.0		0.0
Currency translation adjustment [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(51.5)		(37.8)		(47.6)		(16.2)
OCI before reclassifications	(8.3)		18.8		(12.2)		(2.8)
Amounts reclassified from AOCI	0.0	[3]	0.0	[4]	0.0	[3]	0.0	[4]
Net current-period OCI	(8.3)		18.8		(12.2)		(2.8)
Ending balance	(59.8)		(19.0)		(59.8)		(19.0)
Increase (Decrease) in Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	17.9		24.8		19.4		25.0
OCI before reclassifications	(1.5)		0.5		(3.0)		0.3
Amounts reclassified from AOCI	0.0	[3]	0.0	[4]	0.0	[3]	0.0	[4]
Net current-period OCI	(1.5)		0.5		(3.0)		0.3
Ending balance	16.4		25.3		16.4		25.3
Unrealized holding gains on securities [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	0.0		0.0		0.0		0.0
OCI before reclassifications	0.0		(0.1)		0.0		(0.1)
Amounts reclassified from AOCI	0.0	[3]	0.0	[4]	0.0	[3]	0.0	[4]
Net current-period OCI	0.0		(0.1)		0.0		(0.1)
Ending balance	0.0		(0.1)		0.0		(0.1)
Increase (Decrease) in Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	0.0		0.0		0.0		0.0
OCI before reclassifications	0.0		0.0		0.0		0.0
Amounts reclassified from AOCI	0.0		0.0		0.0		0.0
Net current-period OCI	0.0		0.0		0.0		0.0
Ending balance	0.0		0.0		0.0		0.0
Derivatives [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(18.3)		26.0		(15.7)		16.3
OCI before reclassifications	16.3		(6.4)		10.6		5.0
Amounts reclassified from AOCI	1.8	[5]	(1.3)	[6]	4.9	[5]	(3.0)	[6]
Net current-period OCI	18.1		(7.7)		15.5		2.0
Ending balance	(0.2)		18.3		(0.2)		18.3
Increase (Decrease) in Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	0.0		0.0		0.0		0.0
OCI before reclassifications	0.0		0.0		0.0		0.0
Amounts reclassified from AOCI	0.0		0.0		0.0		0.0
Net current-period OCI	0.0		0.0		0.0		0.0
Ending balance	$ 0.0		$ 0.0		$ 0.0		$ 0.0

[1] Amounts were included in net periodic benefit cost for pension and other postretirement benefit plans (see Note 7).

[2] Amounts were included in net periodic benefit cost for pension and other postretirement benefit plans (see Note 7).

[3] No amounts were reclassified to earnings.

[4] No amounts were reclassified to earnings.

[5] Amounts related to the effective portion of the derivatives are included in cost of goods sold in the period or periods the hedged item affects earnings. Amounts related to the ineffective portion of the derivatives are presented in selling and administrative expenses on the consolidated statement of operations (see Note 5).

[6] Amounts related to the effective portion of the derivatives are included in cost of goods sold in the period or periods the hedged item affects earnings. Amounts related to the ineffective portion of the derivatives are presented in selling and administrative expenses on the consolidated statement of operations (see Note 5).