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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income	$ 151.8	$ 293.3
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	10.2	11.3
Amortization	36.4	35.5
Gain on divestiture of business, excluding transaction costs (Note 4)		(155.8)
Other non-cash items, net	19.3	22.9
Increase/(decrease) in cash, excluding the effects of divestitures, resulting from changes in:
Other assets	(28.1)	(93.2)
Accounts payable and accrued liabilities	(62.2)	36.0
Income taxes payable	17.2	56.2
Other liabilities	(7.3)	(6.2)
Net cash provided by operating activities	137.3	200.0
Cash flows from investing activities
Payments for capitalized contract costs	(31.0)	(6.9)
Payments for internal use software	(19.6)	(12.6)
Purchases of property and equipment	(6.8)	(10.3)
Proceeds from divestiture, net of cash divested (Note 4)		896.1
Other investing activities	1.1	(5.9)
Net cash (used in)/provided by investing activities	(36.4)	541.0
Cash flows from financing activities
Cash dividends and dividend equivalents paid (Note 9)	(88.1)	(91.8)
Common stock repurchased (Note 9)	(5.1)	(154.4)
Net repayments of commercial paper	(155.0)	(175.0)
Principal payments on borrowings		(300.0)
Proceeds from exercise of options	0.3	8.9
Net change in settlement obligations	109.1	(80.4)
Other financing activities	(0.2)
Net cash used in financing activities	(139.0)	(792.7)
Net change in cash and cash equivalents, including settlement, and restricted cash	(38.1)	(51.7)
Cash and cash equivalents, including settlement, and restricted cash at beginning of period	2,040.7	2,110.9
Cash and cash equivalents, including settlement, and restricted cash at end of period	2,002.6	2,059.2
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents on balance sheet	1,228.6	1,295.8
Settlement cash and cash equivalents (Note 8)	737.1	685.7
Restricted cash in Other assets	36.9	24.6
Cash and cash equivalents included in Assets held for sale (Note 4)	0.0	53.1
Cash and cash equivalents, including settlement, and restricted cash	2,002.6	2,059.2
Supplemental cash flow information:
Interest paid	16.9	16.6
Income taxes paid	13.3	23.0
Settlement Investments
Cash flows from investing activities
Purchases of investments	(124.7)	(178.4)
Proceeds from the sale of investments	22.2	71.6
Maturities of settlement investments	22.4	37.4
Non Settlement Investment
Cash flows from investing activities
Purchases of investments		$ (250.0)
Proceeds from the sale of investments	$ 100.0

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