CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
OPERATING ACTIVITIES:
Net income	$ 43.0	$ 207.9	$ 268.0
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	131.1	123.2	81.9
Intangible amortization	118.4	129.3	45.5
Stock-based compensation expense	21.3	20.5	21.7
Excess tax benefit of stock options exercised			(16.9)
Deferred income taxes	(290.2)	7.1	(10.3)
Asset impairment charges and loss (gain) on disposal of assets held for sale	112.2	28.5	1.8
Other, net	(6.7)	1.0	8.4
Changes in operating assets and liabilities, net of the effects of acquisitions and divestitures:
Accounts receivable	17.1	(43.1)	(55.9)
Prepaid expenses	(33.9)	(1.2)	(8.1)
Accounts payable	22.9	5.2	28.2
Accrued liabilities	363.0	28.5	26.1
Other assets and liabilities	10.4	53.9	(4.3)
Net cash provided by operating activities	508.6	560.8	386.1
INVESTING ACTIVITIES:
Capital expenditures	(143.0)	(136.2)	(114.8)
Payments for acquisitions, net of cash acquired	(52.5)	(63.9)	(2,419.4)
Proceeds from divestitures of businesses and sale of other assets	2.5	2.1
Other, net		2.4	0.3
Net cash used in investing activities	(193.0)	(195.6)	(2,533.9)
FINANCING ACTIVITIES:
Repayments of long-term debt and other obligations	(62.1)	(89.2)	(93.2)
Proceeds from foreign bank debt	13.3	76.2	53.7
Repayment of foreign bank debt	(31.9)	(84.1)	(87.3)
Proceeds from term loan	50.0		1,550.0
Repayment of term loan	(100.0)	(250.0)	(300.0)
Proceeds from private placement of long-term note			600.0
Repayment of private placement of long-term note	(175.0)		(100.0)
Proceeds from senior credit facility	1,739.1	1,464.9	1,907.4
Repayment of senior credit facility	(1,689.7)	(1,393.3)	(2,004.4)
Proceeds from (repayment of) bank overdrafts, net	2.4	(13.6)	4.3
Payments of capital lease obligations	(3.6)	(5.3)	(3.9)
Payments of deferred financing costs	(2.7)	(0.6)	(9.9)
Payment for hedge			(8.8)
Payments for repurchase of common stock		(40.8)	(130.6)
Proceeds from issuance of common stock, net of shares withheld for tax	10.2	37.5	60.1
Proceeds from issuance of mandatory convertible preferred stock			746.9
Payments for repurchase of mandatory convertible preferred stock	(34.2)	(30.9)
Dividends paid on mandatory convertible preferred stock	(36.3)	(39.4)	(10.1)
Excess tax benefit of stock options exercised			16.9
Payments to noncontrolling interests	(0.7)	(8.2)	(5.7)
Net cash (used in) provided by financing activities	(321.2)	(376.8)	2,185.4
Effect of exchange rate changes on cash and cash equivalents	3.6	0.2	(4.2)
Net change in cash and cash equivalents	(2.0)	(11.4)	33.4
Cash and cash equivalents at beginning of year	44.2	55.6	22.2
Cash and cash equivalents at end of year	42.2	44.2	55.6
SUPPLEMENTAL CASH FLOW INFORMATION:
Issuances of obligations for acquisitions	16.5	44.2	80.2
Accrued capital expenditures	5.0	6.2
Interest paid during the year	85.8	88.8	68.0
Income taxes paid during the year, net of refunds	$ 128.9	$ 111.5	$ 125.1