Financial Information for Subsidiary and Guarantor Parent (Cash Flow) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Statement of Cash Flows
Cash flows provided by (used in) operating activities	$ 108.9	$ (38.2)
Investing Activities:
Purchases of property, plant and equipment	(99.5)	(157.5)
Purchases of businesses, net of cash acquired	(0.5)	(92.5)
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	0.0	1.9
Cash used in investing activities	(100.0)	(248.1)
Financing Activities:
Payments on long-term debt and capital leases	(23.3)	(414.7)
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	(57.9)	(57.8)
Other	0.3	(3.8)
Cash used in financing activities	(80.9)	(476.3)
Decrease in cash and cash equivalents	(72.0)	(762.6)
Parent Company
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(61.3)	(60.0)
Investing Activities:
Purchases of property, plant and equipment	(0.1)	(0.1)
Purchases of businesses, net of cash acquired	0.0	0.0
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	0.0	0.0
Cash used in investing activities	(0.1)	(0.1)
Financing Activities:
Payments on long-term debt and capital leases	(0.4)	(397.8)
Net receipts/(payments) on intercompany activity	124.2	521.9
Dividends paid to stockholders	(57.9)	(57.8)
Other	(1.3)	(3.8)
Cash used in financing activities	64.6	62.5
Decrease in cash and cash equivalents	3.2	2.4
Subsidiaries
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(171.1)	(263.2)
Investing Activities:
Purchases of property, plant and equipment	(45.0)	(117.2)
Purchases of businesses, net of cash acquired	0.0	0.0
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	0.2	1.6
Cash used in investing activities	(44.8)	(115.6)
Financing Activities:
Payments on long-term debt and capital leases	(0.1)	(0.1)
Net receipts/(payments) on intercompany activity	209.1	383.5
Dividends paid to stockholders	0.0	0.0
Other	0.0	0.0
Cash used in financing activities	209.0	383.4
Decrease in cash and cash equivalents	(6.9)	4.6
NonGuarantor Subsidiaries
Statement of Cash Flows
Cash flows provided by (used in) operating activities	341.3	285.0
Investing Activities:
Purchases of property, plant and equipment	(54.4)	(40.2)
Purchases of businesses, net of cash acquired	(0.5)	(92.5)
Net receipts/(payments) on intercompany activity	(333.3)	(905.4)
Asset disposals and other	(0.2)	0.3
Cash used in investing activities	(388.4)	(1,037.8)
Financing Activities:
Payments on long-term debt and capital leases	(22.8)	(16.8)
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	0.0	0.0
Other	1.6	0.0
Cash used in financing activities	(21.2)	(16.8)
Decrease in cash and cash equivalents	(68.3)	(769.6)
Consolidation Eliminations
Statement of Cash Flows
Cash flows provided by (used in) operating activities	0.0	0.0
Investing Activities:
Purchases of property, plant and equipment	0.0	0.0
Purchases of businesses, net of cash acquired	0.0	0.0
Net receipts/(payments) on intercompany activity	333.3	905.4
Asset disposals and other	0.0	0.0
Cash used in investing activities	333.3	905.4
Financing Activities:
Payments on long-term debt and capital leases	0.0	0.0
Net receipts/(payments) on intercompany activity	(333.3)	(905.4)
Dividends paid to stockholders	0.0	0.0
Other	0.0	0.0
Cash used in financing activities	(333.3)	(905.4)
Decrease in cash and cash equivalents	$ 0.0	$ 0.0