Financial Information for Subsidiary and Guarantor Parent (Cash Flows) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	$ 55.9	$ 368.4	$ 427.5
Purchases of property, plant and equipment	(225.7)	(612.7)	(382.0)
Net receipts (payments) on intercompany activity	0	0	0
Proceeds from sale of business, net of transaction costs	0	600.9	0
Purchases of businesses, net of cash acquired	(92.9)	0	0
Asset disposals and other	2.4	0.8	3.3
Cash used in investing activities	(316.2)	(11.0)	(378.7)
Issuances of long-term debt	0	500.0	0
Payments on long-term debt and capital leases	(414.9)us-gaap_RepaymentsOfLongTermDebt
Payments on long-term debt	(414.9)	(17.1)	(16.7)
Net receipts (payments) on intercompany activity	0	0	0
Dividends paid to stockholders	(77.1)us-gaap_PaymentsOfDividendsCommonStock	(76.9)us-gaap_PaymentsOfDividendsCommonStock	(76.5)us-gaap_PaymentsOfDividendsCommonStock
Other	(5.0)	(58.3)	(48.3)
Cash provided by (used in) financing activities	(497.0)	364.8	(124.8)
Increase (decrease) in cash and cash equivalents	(757.3)	722.2	(76.0)
Guarantor Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	(66.9)	(41.1)	(52.3)
Purchases of property, plant and equipment	(0.1)	(0.2)	(1.7)
Net receipts (payments) on intercompany activity	0	0	0
Proceeds from sale of business, net of transaction costs		(7.9)
Purchases of businesses, net of cash acquired	0
Asset disposals and other	0	0	0
Cash used in investing activities	(0.1)	(8.1)	(1.7)
Issuances of long-term debt		500.0
Payments on long-term debt and capital leases	(397.9)
Net receipts (payments) on intercompany activity	544.4	(366.7)	156.5
Dividends paid to stockholders	(77.1)	(76.9)	(76.5)
Other	(3.8)	(9.1)	(21.2)
Cash provided by (used in) financing activities	65.6	47.3	58.8
Increase (decrease) in cash and cash equivalents	(1.4)	(1.9)	4.8
Subsidiary [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	(313.8)	(50.4)	43.9
Purchases of property, plant and equipment	(170.8)	(564.8)	(308.6)
Net receipts (payments) on intercompany activity	0	0	0
Proceeds from sale of business, net of transaction costs		0
Purchases of businesses, net of cash acquired	0
Asset disposals and other	1.7	0.2	0.3
Cash used in investing activities	(169.1)	(564.6)	(308.3)
Issuances of long-term debt		0
Payments on long-term debt and capital leases	(0.1)
Net receipts (payments) on intercompany activity	483.3	615.5	147.9
Dividends paid to stockholders	0	0	0
Other	0	(0.1)	(0.1)
Cash provided by (used in) financing activities	483.2	615.4	147.8
Increase (decrease) in cash and cash equivalents	0.3	0.4	(116.6)
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	436.6	484.2	435.9
Purchases of property, plant and equipment	(54.8)	(47.7)	(71.7)
Net receipts (payments) on intercompany activity	(1,027.7)	(248.8)	(304.4)
Proceeds from sale of business, net of transaction costs		608.8
Purchases of businesses, net of cash acquired	(92.9)
Asset disposals and other	0.7	0.6	3.0
Cash used in investing activities	(1,174.7)	312.9	(373.1)
Issuances of long-term debt		0
Payments on long-term debt and capital leases	(16.9)
Net receipts (payments) on intercompany activity	0	0	0
Dividends paid to stockholders	0	(24.3)	0
Other	(1.2)	(49.1)	(27.0)
Cash provided by (used in) financing activities	(18.1)	(73.4)	(27.0)
Increase (decrease) in cash and cash equivalents	(756.2)	723.7	35.8
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash flows provided by (used in) operating activities	0	(24.3)	0
Purchases of property, plant and equipment	0	0	0
Net receipts (payments) on intercompany activity	1,027.7	248.8	304.4
Proceeds from sale of business, net of transaction costs		0
Purchases of businesses, net of cash acquired	0
Asset disposals and other	0	0	0
Cash used in investing activities	1,027.7	248.8	304.4
Issuances of long-term debt		0
Payments on long-term debt and capital leases	0
Net receipts (payments) on intercompany activity	(1,027.7)	(248.8)	(304.4)
Dividends paid to stockholders	0	24.3	0
Other	0	0	0
Cash provided by (used in) financing activities	(1,027.7)	(224.5)	(304.4)
Increase (decrease) in cash and cash equivalents	$ 0	$ 0	$ 0

Net Receipts Payments on Intercompany Activity

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Proceeds from Divestiture of Businesses, Net of Transaction Costs

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Proceeds (Payments) from Intercompany Activites, Investing Activities

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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 financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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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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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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The cash outflow associated with security instruments that either represent a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Includes repayments of (a) debt, (b) capital lease obligations, (c) mandatory redeemable capital securities, and (d) any combination of (a), (b), or (c).

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