Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income	$ 1,079	$ 1,048
Adjustments to reconcile net income to cash provided by operating activities:
Gain from sales of businesses	0	(25)
Depreciation of fixed assets	38	38
Amortization and impairment of intangible assets	25	28
Share-based compensation expense	127	119
Deferred income taxes	(70)	(18)
Other, net	0	1
Change in assets and liabilities:
Receivables, net	(664)	(544)
Accounts payable and accrued liabilities	(443)	(449)
Current income taxes	126	153
Pension, other postretirement and postemployment liabilities	(9)	(28)
Other assets and liabilities	234	140
Cash provided by operating activities	443	463
Cash flows from investing activities
Proceeds from investments	13	45
Purchases of investments	(11)	(9)
Net sales (purchases) of short-term investments - non fiduciary	280	(164)
Acquisition of businesses, net of cash and funds held on behalf of clients	(2)	(134)
Sale of businesses, net of cash and funds held on behalf of clients	1	22
Capital expenditures	(76)	(23)
Cash provided by (used for) investing activities	205	(263)
Cash flows from financing activities
Share repurchase	(550)	(828)
Proceeds from issuance of shares	25	23
Issuance of shares for employee benefit plans	(157)	(139)
Commercial paper issuances, net of repayments	(173)	(551)
Issuance of debt	744	1,471
Increase in fiduciary liabilities, net of fiduciary receivables	636	647
Cash dividends to shareholders	(115)	(110)
Noncontrolling interests and other financing activities	(6)	(13)
Cash provided by financing activities	404	500
Effect of exchange rates on cash and cash equivalents and funds held on behalf of clients	58	(50)
Net increase in cash and cash equivalents and funds held on behalf of clients	1,110	650
Cash, cash equivalents and funds held on behalf of clients at beginning of period	7,076	6,645
Cash, cash equivalents and funds held on behalf of clients at end of period	8,186	7,295
Reconciliation of cash and cash equivalents and funds held on behalf of clients:
Cash and cash equivalents	1,119	595
Funds held on behalf of clients	7,067	6,700
Total cash and cash equivalents and funds held on behalf of clients	8,186	7,295
Supplemental disclosures:
Interest paid	79	22
Income taxes paid, net of refunds	$ 206	$ 121