Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities
Net income	$ 2,646	$ 1,308	$ 2,018
Adjustments to reconcile net income to cash provided by operating activities:
Gain from sales of businesses	(54)	(142)	(25)
Depreciation of fixed assets	151	179	167
Amortization and impairment of intangible assets	113	147	246
Share-based compensation expense	397	449	312
Deferred income taxes	(252)	11	9
Other, net	170	5	2
Change in assets and liabilities:
Receivables, net	(96)	(119)	108
Accounts payable and accrued liabilities	(22)	264	186
Current income taxes	216	200	(17)
Pension, other postretirement and postemployment liabilities	(53)	(124)	(143)
Other assets and liabilities	3	4	(80)
Cash provided by operating activities	3,219	2,182	2,783
Cash flows from investing activities
Proceeds from investments	110	58	64
Payments for investments	(107)	(91)	(97)
Net sales (purchases) of short-term investments - non fiduciary	(175)	15	(167)
Acquisition of businesses, net of cash and funds held on behalf of clients	(162)	(14)	(368)
Sale of businesses, net of cash and funds held on behalf of clients	81	218	30
Capital expenditures	(196)	(137)	(141)
Cash provided by (used for) investing activities	(449)	49	(679)
Cash flows from financing activities
Share repurchase	(3,203)	(3,543)	(1,763)
Proceeds from issuance of shares	58	55	44
Cash paid for employee taxes on withholding shares	(215)	(185)	(193)
Commercial paper issuances, net of repayments	(65)	671	(113)
Issuance of debt	1,967	1,495	991
Repayment of debt	(500)	(413)	(607)
Increase in fiduciary liabilities, net of fiduciary receivables	702	568	316
Cash dividends to shareholders	(463)	(447)	(412)
Noncontrolling interests and other financing activities	(71)	(125)	(35)
Cash used for financing activities	(1,790)	(1,924)	(1,772)
Effect of exchange rates on cash and cash equivalents and funds held on behalf of clients	(549)	(235)	297
Net increase in cash and cash equivalents and funds held on behalf of clients	431	72	629
Cash and cash equivalents and funds held on behalf of clients at beginning of year	6,645	6,573	5,944
Cash and cash equivalents and funds held on behalf of clients at end of year	7,076	6,645	6,573
Reconciliation of cash and cash equivalents and funds held on behalf of clients:
Cash and cash equivalents	690	544	884
Funds held on behalf of clients	6,386	6,101	5,689
Total cash and cash equivalents and funds held on behalf of clients	7,076	6,645	6,573
Supplemental disclosures:
Interest paid	351	328	326
Income taxes paid, net of refunds	$ 546	$ 412	$ 455