CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating activities:
Net income	$ 375.9	$ 404.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	108.4	108.4
Impairment of long-lived assets	1.2
Provision for uncollectible accounts	3.8	7.1
Stock-based compensation expense	22.1	19.3
Other	1.6	1.2
Changes in operating assets and liabilities (excluding effect of businesses acquired):
Accounts receivable	(111.1)	(295.0)
Inventories	31.2	(332.0)
Prepaid expenses and other assets	35.3	(1.5)
Accounts payable and other liabilities	(5.2)	185.3
Net cash provided by operating activities	463.2	97.0
Investing activities:
Purchases of property, plant and equipment	(123.9)	(98.6)
Acquisitions, net of cash acquired	(1.0)	(39.6)
Other	7.0	9.2
Net cash used in investing activities	(117.9)	(129.0)
Financing activities:
Net short-term debt repayments		(2.1)
Proceeds from long-term debt borrowings	616.0	670.0
Principal payments on long-term debt	(811.0)	(533.3)
Dividends and dividend equivalents paid	(76.5)	(74.6)
Share repurchases	(50.0)	(50.0)
Other	(11.6)	(5.2)
Net cash (used in) provided by financing activities	(333.1)	4.8
Effect of exchange rate changes on cash and cash equivalents	1.1	(2.9)
Increase (decrease) in cash and cash equivalents	13.3	(30.1)
Cash and cash equivalents at beginning of year	128.2	154.4
Cash and cash equivalents at end of period	141.5	124.3
Supplemental cash flow information:
Interest paid during the period	46.8	39.7
Income taxes paid during the period, net	$ 123.9	$ 114.5