CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income	$ 99.7	$ 66.9
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	45.4	43.7
Amortization	1.4	1.3
Stock-based compensation	9.0	9.5
Non-cash restructuring charges	0.0	15.0
Venezuela deconsolidation	11.1	0.0
Other non-cash items, net	(3.6)	3.3
Changes in assets and liabilities	(57.0)	(60.5)
Net cash provided by operating activities	106.0	79.2
Cash flows from investing activities:
Capital expenditures	(67.0)	(74.0)
Purchase of cost-method investment	0.0	8.4
Cash related to deconsolidated Venezuela subsidiary	(6.0)	0.0
Other, net	2.8	1.2
Net cash used in investing activities	(70.2)	(81.2)
Cash flows from financing activities:
Repayments of long-term debt	(1.2)	(68.6)
Dividend payments	(19.1)	(17.5)
Excess tax benefit from employee stock plans	0.0	13.1
Shares purchased under share repurchase program	(26.9)	(17.2)
Shares repurchased for employee tax withholdings	(3.8)	(3.7)
Proceeds from exercise of stock options and stock appreciation rights	29.5	19.7
Employee stock purchase plan contributions	2.2	1.7
Contingent consideration payments	(0.2)	0.0
Net cash used in financing activities	(19.5)	(72.5)
Effect of exchange rates on cash	7.3	2.6
Net increase (decrease) in cash and cash equivalents	23.6	(71.9)
Cash and cash equivalents at beginning of period	203.0	274.6
Cash and cash equivalents at end of period	$ 226.6	$ 202.7