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 income	$ 1,308	$ 2,018	$ 1,573
Adjustments to reconcile net income to cash provided by operating activities:
Gain from sales of businesses and investments	(142)	(25)	(13)
Depreciation of fixed assets	179	167	172
Amortization and impairment of intangible assets	147	246	392
Share-based compensation expense	449	312	317
Deferred income taxes	11	9	(36)
Change in assets and liabilities:
Receivables, net	(119)	108	(371)
Accounts payable and accrued liabilities	264	186	(28)
Current income taxes	200	(17)	(20)
Pension, other postretirement and postemployment liabilities	(119)	(141)	(156)
Other assets and liabilities	4	(80)	5
Cash provided by operating activities	2,182	2,783	1,835
Cash flows from investing activities
Proceeds from investments	58	64	61
Payments for investments	(91)	(97)	(113)
Net sales (purchases) of short-term investments - non fiduciary	15	(167)	35
Acquisition of businesses, net of cash and funds held on behalf of clients	(14)	(368)	(39)
Sale of businesses, net of cash and funds held on behalf of clients	218	30	52
Capital expenditures	(137)	(141)	(225)
Cash provided by (used for) investing activities	49	(679)	(229)
Cash flows from financing activities
Share repurchase	(3,543)	(1,763)	(1,960)
Issuance of shares for employee benefit plans	(130)	(149)	(131)
Issuance of debt	5,973	4,153	6,052
Repayment of debt	(4,220)	(3,882)	(4,941)
Increase in fiduciary liabilities, net of fiduciary receivables	568	316	1,246
Cash dividends to shareholders	(447)	(412)	(410)
Noncontrolling interests and other financing activities	(125)	(35)	(103)
Cash used for financing activities	(1,924)	(1,772)	(247)
Effect of exchange rates on cash and cash equivalents and funds held on behalf of clients	(235)	297	63
Net increase in cash and cash equivalents and funds held on behalf of clients	72	629	1,422
Cash and cash equivalents and funds held on behalf of clients at beginning of year	6,573	5,944	4,522
Cash and cash equivalents and funds held on behalf of clients at end of year	6,645	6,573	5,944
Reconciliation of cash and cash equivalents and funds held on behalf of clients:
Cash and cash equivalents	544	884	790
Funds held on behalf of clients	6,101	5,689	5,154
Total cash and cash equivalents and funds held on behalf of clients	6,645	6,573	5,944
Supplemental disclosures:
Interest paid	328	326	289
Income taxes paid, net of refunds	$ 412	$ 455	$ 353