CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows from Operating Activities
Net earnings	$ 382.4	$ 23.8	$ 465.7
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	73.4	76.3	77.2
Non-cash gain on disposition of previously held equity interest	0.0	0.0	(80.4)
Non-cash gain on disposition of previously held controlling interest	0.0	0.0	(30.4)
Non-cash goodwill and other impairment charges	0.0	71.3	64.0
Non-cash operating lease right-of-use assets impairment	0.0	27.3
Deferred income taxes	(1.3)	(10.4)	(43.0)
Provision for doubtful accounts	17.9	20.3	21.8
Share-based compensation	36.8	24.2	26.3
Change in operating assets and liabilities, excluding the impact of acquisitions:
Accounts receivable	(640.9)	586.9	(80.2)
Other assets	79.0	29.9	122.3
Other liabilities	697.5	86.8	271.1
Cash provided by operating activities	644.8	936.4	814.4
Cash Flows from Investing Activities
Capital expenditures	(64.2)	(50.7)	(52.9)
Acquisitions of businesses, net of cash acquired	(924.4)	(0.7)	77.8
Impact to cash resulting from deconsolidation of subsidiaries	0.0	0.0	(57.9)
Proceeds from the sale of subsidiaries, investments, property and equipment	1.6	9.0	16.8
Cash used in investing activities	(987.0)	(42.4)	(16.2)
Cash Flows from Financing Activities
Net change in short-term borrowings	(3.0)	(40.8)	11.2
Net proceeds of revolving debt facility	75.0	0.0	0.0
Proceeds from long-term debt	0.5	2.7	9.6
Repayments of long-term debt	(2.2)	(0.4)	(1.3)
Payments of contingent consideration for acquisitions	(6.3)	(1.9)	(22.8)
Proceeds from share-based awards and sale of subsidiaries	5.1	7.4	7.5
Payments to noncontrolling interests	(1.2)	(0.8)	(2.1)
Other share-based award transactions	(5.0)	(7.6)	(7.2)
Repurchases of common stock	(210.0)	(264.7)	(203.0)
Dividends paid	(136.6)	(129.1)	(129.3)
Cash used in financing activities	(283.7)	(435.2)	(337.4)
Effect of exchange rate changes on cash	(93.4)	82.5	(26.9)
Change in cash and cash equivalents	(719.3)	541.3	433.9
Cash and cash equivalents, beginning of year	1,567.1	1,025.8	591.9
Cash and cash equivalents, end of year	847.8	1,567.1	1,025.8
Cash paid during the period for:
Interest	37.0	40.8	42.4
Income taxes, net	139.7	149.8	179.2
Operating lease liabilities	139.6	142.0	150.1
Non-cash operating activity:
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 70.2	$ 63.6	$ 129.3