CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities:
Net income	$ 113.4	$ 93.5
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization expense	55.2	56.1
Deferred income tax provision	0.2	2.3
Gain on sales of property, plant and equipment	(3.9)	(0.5)
Stock-based compensation expense	5.5	3.3
Other	4.0	1.0
Changes in operating assets and liabilities (excluding effect of businesses acquired):
Accounts receivable	(186.7)	(80.3)
Inventories	(146.5)	(29.3)
Prepaid expenses and other assets	9.2	17.0
Accounts payable and other liabilities	128.9	92.3
Net cash (used in) provided by operating activities	(20.7)	155.4
Investing activities:
Purchases of property, plant and equipment	(34.1)	(34.4)
Acquisitions, net of cash acquired	(1.3)	(290.9)
Other	3.4	(6.2)
Net cash used in investing activities	(32.0)	(331.5)
Financing activities:
Net short-term debt repayments	(3.8)	(6.2)
Proceeds from long-term debt borrowings	339.0	399.0
Principal payments on long-term debt	(242.1)	(188.0)
Dividends and dividend equivalents paid	(33.7)	(29.0)
Exercise of stock options	2.8	16.5
Other	(1.8)	(2.6)
Net cash provided by financing activities	60.4	189.7
Effect of exchange rate changes on cash	3.3	2.6
Increase in cash and cash equivalents	11.0	16.2
Cash and cash equivalents at beginning of year	122.8	104.3
Cash and cash equivalents at end of period	133.8	120.5
Supplemental cash flow information:
Interest paid during the period	8.1	5.1
Income taxes paid during the period, net	$ 3.0	$ 5.7