Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flows from Operating Activities
Net income	$ 249.9	$ 297.8	$ 282.1
Adjustments to reconcile net income to net cash provided by operating activities, net of acquisitions:
Depreciation and amortization	99.8	92.3	85.2
Deferred income taxes	(14.3)	12.7	(4.5)
Stock-based compensation	22.3	22.3	17.0
Loss on extinguishment of debt	(10.1)	0.0	0.0
(Gain) loss on sale of assets	(11.6)	(5.8)	0.5
Changes in assets and liabilities, net of acquisitions:
Decrease (increase) in accounts receivable	3.9	(42.3)	1.9
Decrease (increase) in inventories	(90.3)	18.4	(80.8)
Increase in current liabilities	57.4	13.8	46.6
Changes in other assets and liabilities, net	50.7	8.4	6.1
Contributions to qualified defined benefit pension plans	(1.7)	(18.0)	(22.6)
Other, net	2.8	11.4	7.9
NET CASH PROVIDED BY OPERATING ACTIVITIES	379.0	411.0	339.4
Cash Flows from Investing Activities
Capital expenditures	(79.7)	(67.2)	(77.1)
Acquisitions, net of cash acquired	(184.1)	(173.4)	(163.4)
Purchases of available-for-sale investments	(20.9)	(20.0)	(24.5)
Proceeds from sales of available-for-sale investments	17.4	13.3	13.8
Proceeds from disposition of assets	18.4	10.8	0.7
Other, net	3.3	6.3	0.9
NET CASH USED IN INVESTING ACTIVITIES	(245.6)	(230.2)	(249.6)
Cash Flows from Financing Activities
Issuance of long-term debt	297.6	397.0	0.0
Extinguishment of long-term debt	(300.0)	0.0	0.0
Issuance of short-term debt	66.3	1.2	48.8
Payment of short-term debt	(1.7)	(51.5)	(2.0)
Make whole payment for extinguishment of long-term debt	(9.9)	0.0	0.0
Debt issuance cost	(3.0)	(3.6)	0.0
Payment of dividends	(157.6)	(144.0)	(133.7)
Payment of dividends to noncontrolling interest	(3.5)	(2.8)	(5.0)
Acquisition of common shares	(92.5)	(246.8)	(79.1)
Payments for share reclassification	0.0	0.0	(200.7)
Other	(10.0)	(8.9)	(7.3)
NET CASH USED IN FINANCING ACTIVITIES	(214.3)	(59.4)	(379.0)
Effect of foreign currency exchange rate changes on cash and cash equivalents	18.3	(27.3)	(21.2)
Increase in cash and cash equivalents	(62.6)	94.1	(310.4)
Cash and cash equivalents, beginning of year	437.6	343.5	653.9
Cash and cash equivalents, end of year	$ 375.0	$ 437.6	$ 343.5