Condensed Consolidating Financial Statements - Cash Flow Statement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Unaudited Consolidating Cash Flow Statement
Net cash provided by operating activities	$ 1,025.0	$ 356.0	$ 633.3
Investing activities:
Purchases of property, plant and equipment	(172.2)	(190.4)	(168.0)
Acquisitions, net of cash acquired	(0.4)	(208.2)	(821.1)
Other investing activities, net	2.3	33.6	10.1
Net cash used in investing activities	(169.9)	(365.0)	(979.0)
Financing activities:
Net short-term debt borrowings	12.7	1.7	(473.0)
Proceed from long-term debt borrowings	573.0	719.0	2,297.9
Principal payments on long-term debt	(962.3)	(552.2)	(1,454.5)
Dividends and dividend equivalents paid	(120.1)	(108.7)	(96.9)
Share repurchases	(355.5)	(50.0)
Other financing activities, net	3.7	(26.8)	58.6
Net cash (used in) provided by financing activities	(848.5)	33.0	332.1
Effect of exchange rate changes on cash and cash equivalents	(8.5)	(1.4)	(0.4)
(Decrease) increase in cash and cash equivalents	(1.9)	22.6	(14.0)
Cash and cash equivalents at beginning of year	106.2	83.6	97.6
Cash and cash equivalents at end of period	104.3	106.2	83.6
Reportable legal entities | Parent
Condensed Unaudited Consolidating Cash Flow Statement
Net cash provided by operating activities	148.8	118.4	102.8
Investing activities:
Purchases of property, plant and equipment	(21.5)	(18.2)	(14.0)
Acquisitions, net of cash acquired			(821.1)
Net repayments (advances) from subsidiaries	697.2	(119.7)	(85.3)
Other investing activities, net	(2.6)	(0.8)	0.1
Net cash used in investing activities	673.1	(138.7)	(920.3)
Financing activities:
Proceed from long-term debt borrowings	573.0	719.0	2,297.9
Principal payments on long-term debt	(959.8)	(549.3)	(1,452.8)
Dividends and dividend equivalents paid	(120.1)	(108.7)	(96.9)
Share repurchases	(355.5)
Other financing activities, net	9.3	(18.5)	60.9
Net cash (used in) provided by financing activities	(853.1)	42.5	809.1
(Decrease) increase in cash and cash equivalents	(31.2)	22.2	(8.4)
Cash and cash equivalents at beginning of year	41.9	19.7	28.1
Cash and cash equivalents at end of period	10.7	41.9	19.7
Reportable legal entities | Guarantor Subsidiaries
Condensed Unaudited Consolidating Cash Flow Statement
Net cash provided by operating activities	805.0	193.2	458.5
Investing activities:
Purchases of property, plant and equipment	(136.1)	(159.2)	(139.9)
Acquisitions, net of cash acquired		(92.0)
Other investing activities, net	4.8	(3.6)	2.8
Net cash used in investing activities	(131.3)	(254.8)	(137.1)
Financing activities:
Net short-term debt borrowings			(473.8)
Principal payments on long-term debt	(2.5)	(2.0)	(0.6)
Net intercompany borrowings (repayments)	(663.9)	64.4	141.4
Other financing activities, net		(8.3)	(2.3)
Net cash (used in) provided by financing activities	(666.4)	54.1	(335.3)
(Decrease) increase in cash and cash equivalents	7.3	(7.5)	(13.9)
Cash and cash equivalents at beginning of year	(8.3)	(0.8)	13.1
Cash and cash equivalents at end of period	(1.0)	(8.3)	(0.8)
Reportable legal entities | Non-Guarantor Subsidiaries
Condensed Unaudited Consolidating Cash Flow Statement
Net cash provided by operating activities	71.2	44.4	72.0
Investing activities:
Purchases of property, plant and equipment	(14.6)	(13.0)	(14.1)
Acquisitions, net of cash acquired		(116.2)
Other investing activities, net	0.1	38.0	7.2
Net cash used in investing activities	(14.5)	(91.2)	(6.9)
Financing activities:
Net short-term debt borrowings	12.7	1.7	0.8
Principal payments on long-term debt		(0.9)	(1.1)
Net intercompany borrowings (repayments)	(33.3)	55.3	(56.1)
Other financing activities, net	(5.6)
Net cash (used in) provided by financing activities	(26.2)	56.1	(56.4)
Effect of exchange rate changes on cash and cash equivalents	(8.5)	(1.4)	(0.4)
(Decrease) increase in cash and cash equivalents	22.0	7.9	8.3
Cash and cash equivalents at beginning of year	72.6	64.7	56.4
Cash and cash equivalents at end of period	94.6	72.6	64.7
Consolidating Adjustments
Investing activities:
Net repayments (advances) from subsidiaries	(697.2)	119.7	85.3
Net cash used in investing activities	(697.2)	119.7	85.3
Financing activities:
Net intercompany borrowings (repayments)	697.2	(119.7)	(85.3)
Net cash (used in) provided by financing activities	$ 697.2	$ (119.7)	$ (85.3)