Financial Information for Subsidiary and Guarantor Parent (Cash Flow) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Statement of Cash Flows
Cash flows provided by (used in) operating activities	$ 91.5	$ (37.5)
Investing Activities:
Purchases of property, plant and equipment	(63.3)	(97.9)
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	2.1
Cash used in investing activities	(63.8)	(188.3)
Financing Activities:
Payments on long-term debt and capital leases	(6.3)	(403.4)
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	(38.6)	(38.6)
Other	(7.7)	(3.9)
Cash used in financing activities	(46.3)	(445.9)
Decrease in cash and cash equivalents	(18.6)	(671.7)
Parent Company
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(38.0)	(45.6)
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	0.0	0.0
Asset disposals and other	0.0	0.0
Cash used in investing activities	0.0	0.0
Financing Activities:
Payments on long-term debt and capital leases		(397.7)
Net receipts/(payments) on intercompany activity	81.3	486.8
Dividends paid to stockholders	(38.6)	(38.6)
Other	(1.7)	(3.9)
Cash used in financing activities	41.0	46.6
Decrease in cash and cash equivalents	3.0	1.0
Subsidiaries
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(98.1)	(196.9)
Investing Activities:
Purchases of property, plant and equipment	(26.0)	(72.4)
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	1.5
Cash used in investing activities	(25.8)	(70.9)
Financing Activities:
Payments on long-term debt and capital leases		0.0
Net receipts/(payments) on intercompany activity	125.1	279.7
Dividends paid to stockholders	0.0	0.0
Other	(0.1)	0.0
Cash used in financing activities	125.0	279.7
Decrease in cash and cash equivalents	1.1	11.9
NonGuarantor Subsidiaries
Statement of Cash Flows
Cash flows provided by (used in) operating activities	227.6	205.0
Investing Activities:
Purchases of property, plant and equipment	(37.3)	(25.5)
Purchases of businesses, net of cash acquired	(0.5)	(92.5)
Net receipts/(payments) on intercompany activity	(206.4)	(766.5)
Asset disposals and other	(0.2)	0.6
Cash used in investing activities	(244.4)	(883.9)
Financing Activities:
Payments on long-term debt and capital leases		(5.7)
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	0.0	0.0
Other	(5.9)	0.0
Cash used in financing activities	(5.9)	(5.7)
Decrease in cash and cash equivalents	(22.7)	(684.6)
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	206.4	766.5
Asset disposals and other	0.0	0.0
Cash used in investing activities	206.4	766.5
Financing Activities:
Payments on long-term debt and capital leases		0.0
Net receipts/(payments) on intercompany activity	(206.4)	(766.5)
Dividends paid to stockholders	0.0	0.0
Other	0.0	0.0
Cash used in financing activities	(206.4)	(766.5)
Decrease in cash and cash equivalents	$ 0.0	$ 0.0