Financial Information for Subsidiary and Guarantor Parent (Cash Flows) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	$ 131.4	$ 55.9	$ 368.4
Purchases of property, plant and equipment	(144.5)	(225.7)	(612.7)
Net receipts (payments) on intercompany activity	0.0	0.0	0.0
Purchases of businesses, net of cash acquired	(0.5)	(92.9)	0.0
Proceeds from sale of business, net of transaction costs	0.0	0.0	600.9
Asset disposals and other	(0.1)	2.4	0.8
Cash flows provided by (used in) investing activities	(145.1)	(316.2)	(11.0)
Borrowings on long-term debt	0.0	0.0	500.0
Payments on long-term debt and capital leases	(23.6)	(414.9)	(17.1)
Net receipts (payments) on intercompany activity	0.0	0.0	0.0
Dividends paid to stockholders	(66.5)	(77.1)	(76.9)
Dividends paid to noncontrolling interests	(16.0)	0.0	(18.0)
Other	0.1	(5.0)	(58.3)
Cash provided by (used in) financing activities	(106.0)	(497.0)	364.8
Increase (decrease) in cash and cash equivalents	(119.7)	(757.3)	722.2
Guarantor Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	(70.0)	(66.9)	(41.1)
Purchases of property, plant and equipment	(0.6)	(0.1)	(0.2)
Net receipts (payments) on intercompany activity	0.0	0.0	0.0
Purchases of businesses, net of cash acquired	0.0	0.0
Proceeds from sale of business, net of transaction costs			(7.9)
Asset disposals and other	0.0	0.0	0.0
Cash flows provided by (used in) investing activities	(0.6)	(0.1)	(8.1)
Borrowings on long-term debt			500.0
Payments on long-term debt and capital leases	(0.6)	(397.9)
Net receipts (payments) on intercompany activity	137.3	544.4	(366.7)
Dividends paid to stockholders	(66.5)	(77.1)	(76.9)
Dividends paid to noncontrolling interests	0.0
Other	(1.4)	(3.8)	(9.1)
Cash provided by (used in) financing activities	68.8	65.6	47.3
Increase (decrease) in cash and cash equivalents	(1.8)	(1.4)	(1.9)
Subsidiary [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	(134.8)	(313.8)	(50.4)
Purchases of property, plant and equipment	(66.9)	(170.8)	(564.8)
Net receipts (payments) on intercompany activity	0.0	0.0	0.0
Purchases of businesses, net of cash acquired	0.0	0.0
Proceeds from sale of business, net of transaction costs			0.0
Asset disposals and other	0.2	1.7	0.2
Cash flows provided by (used in) investing activities	(66.7)	(169.1)	(564.6)
Borrowings on long-term debt			0.0
Payments on long-term debt and capital leases	(0.1)	(0.1)
Net receipts (payments) on intercompany activity	190.6	483.3	615.5
Dividends paid to stockholders	0.0	0.0	0.0
Dividends paid to noncontrolling interests	0.0
Other	0.0	0.0	(0.1)
Cash provided by (used in) financing activities	190.5	483.2	615.4
Increase (decrease) in cash and cash equivalents	(11.0)	0.3	0.4
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	360.2	436.6	484.2
Purchases of property, plant and equipment	(77.0)	(54.8)	(47.7)
Net receipts (payments) on intercompany activity	(327.9)	(1,027.7)	(248.8)
Purchases of businesses, net of cash acquired	(0.5)	(92.9)
Proceeds from sale of business, net of transaction costs			608.8
Asset disposals and other	(0.3)	0.7	0.6
Cash flows provided by (used in) investing activities	(405.7)	(1,174.7)	312.9
Borrowings on long-term debt			0.0
Payments on long-term debt and capital leases	(22.9)	(16.9)
Net receipts (payments) on intercompany activity	0.0	0.0	0.0
Dividends paid to stockholders	(24.0)	0.0	(24.3)
Dividends paid to noncontrolling interests	(16.0)
Other	1.5	(1.2)	(49.1)
Cash provided by (used in) financing activities	(61.4)	(18.1)	(73.4)
Increase (decrease) in cash and cash equivalents	(106.9)	(756.2)	723.7
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	(24.0)	0.0	(24.3)
Purchases of property, plant and equipment	0.0	0.0	0.0
Net receipts (payments) on intercompany activity	327.9	1,027.7	248.8
Purchases of businesses, net of cash acquired	0.0	0.0
Proceeds from sale of business, net of transaction costs			0.0
Asset disposals and other	0.0	0.0	0.0
Cash flows provided by (used in) investing activities	327.9	1,027.7	248.8
Borrowings on long-term debt			0.0
Payments on long-term debt and capital leases	0.0	0.0
Net receipts (payments) on intercompany activity	(327.9)	(1,027.7)	(248.8)
Dividends paid to stockholders	24.0	0.0	24.3
Dividends paid to noncontrolling interests	0.0
Other	0.0	0.0	0.0
Cash provided by (used in) financing activities	(303.9)	(1,027.7)	(224.5)
Increase (decrease) in cash and cash equivalents	$ 0.0	$ 0.0	$ 0.0

Net Receipts Payments on Intercompany Activity

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Proceeds (Payments) from Intercompany Activites, Investing Activities

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Proceeds from Divestiture of Businesses, Net of Transaction Costs

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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