Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net income	$ 933	$ 791
Adjustments to reconcile net income to cash provided by operating activities:
(Gain) from sales of businesses, net	0	(25)
Depreciation of fixed assets	41	41
Amortization and impairment of intangible assets	40	97
Share-based compensation expense	131	76
Deferred income taxes	19	(6)
Change in assets and liabilities:
Fiduciary receivables	(166)	(808)
Short-term investments — funds held on behalf of clients	(28)	(237)
Fiduciary liabilities	194	1,045
Receivables, net	(485)	(543)
Accounts payable and accrued liabilities	(356)	(275)
Current income taxes	142	141
Pension, other postretirement and postemployment liabilities	(59)	(41)
Other assets and liabilities	155	82
Cash provided by operating activities	561	338
Cash flows from investing activities
Proceeds from investments	11	6
Payments for investments	(18)	(43)
Net sales (purchases) of short-term investments — non-fiduciary	138	(38)
Acquisition of businesses, net of cash acquired	0	(334)
Sale of businesses, net of cash sold	0	30
Capital expenditures	(29)	(59)
Cash provided by (used for) investing activities	102	(438)
Cash flows from financing activities
Share repurchase	(50)	(463)
Issuance of shares for employee benefit plans	(87)	(112)
Issuance of debt	250	2,060
Repayment of debt	(650)	(1,341)
Cash dividends to shareholders	(104)	(102)
Noncontrolling interests and other financing activities	(68)	40
Cash provided by (used for) financing activities	(709)	82
Effect of exchange rates on cash and cash equivalents	(16)	(82)
Net (decrease) in cash and cash equivalents	(62)	(100)
Cash and cash equivalents at beginning of period	884	790
Cash and cash equivalents at end of period	822	690
Supplemental disclosures:
Interest paid	36	51
Income taxes paid, net of refunds	$ 74	$ 53