Consolidated Statement of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net earnings	$ 724.2	$ 595.5
Adjustments to reconcile net earnings to net cash provided by operating activities:
Net gain on investments and other	(2.9)	(6.3)
Depreciation and amortization	300.1	288.5
Change in estimated acquisition earnout payables	(12.9)	28.8
Amortization of deferred compensation and restricted stock	40.8	31.8
Stock-based and other noncash compensation expense	9.5	8.2
Payments on acquisition earnouts in excess of original estimates	(65.2)	(24.3)
Provision for deferred income taxes	(10.0)	(5.6)
Effect of changes in foreign exchange rates	(16.5)	6.5
Net change in premiums and fees receivable	(6,892.7)	(1,678.7)
Net change in deferred revenue	53.2	36.4
Net change in premiums payable to underwriting enterprises	6,820.2	1,617.4
Net change in other current assets	118.0	(52.2)
Net change in accrued compensation and other accrued liabilities	(195.3)	(53.9)
Net change in income taxes payable	(21.9)	(30.9)
Net change in other noncurrent assets and liabilities	(80.3)	(72.3)
Net cash provided by operating activities	768.3	688.9
Cash flows from investing activities:
Capital expenditures	(91.1)	(59.2)
Cash paid for acquisitions, net of cash and restricted cash acquired	(321.3)	(551.6)
Net proceeds from sales of operations/books of business	3.7	9.4
Net funding of investment transactions	(0.4)	(0.7)
Net funding of premium finance loans	39.2	(0.6)
Net cash used by investing activities	(369.9)	(602.7)
Cash flows from financing activities:
Payments on acquisition earnouts	(77.9)	(115.8)
Proceeds from issuance of common stock	69.1	1,502.0
Payments to noncontrolling interests	(1.2)	(21.6)
Dividends paid	(214.0)	(202.4)
Net borrowings on premium financing debt facility	(44.7)	(37.8)
Borrowings on line of credit facility	1,580.0	925.0
Repayments on line of credit facility	(1,165.0)	(925.0)
Net borrowings of corporate related long-term debt	(200.6)	1,586.5
Debt acquisition costs	1.1	(14.6)
Settlements on terminated interest rate swaps	52.7	(31.9)
Net cash (used) provided by financing activities	(0.5)	2,664.4
Effect of changes in foreign exchange rates on cash and cash equivalents and restricted cash	(74.5)	50.1
Net increase in cash, cash equivalents and restricted cash	323.4	2,800.7
Cash, cash equivalents and restricted cash at beginning of period	4,466.3	3,574.3
Cash, cash equivalents and restricted cash at end of period	$ 4,789.7	$ 6,375.0