Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net income	$ 1,562,000,000	$ 1,326,000,000
Adjustments to reconcile net income to cash provided by operating activities:
Gain from sales of businesses	(47,000,000)	(1,000,000)
Depreciation of fixed assets	78,000,000	82,000,000
Amortization and impairment of intangible assets	53,000,000	76,000,000
Share-based compensation expense	211,000,000	216,000,000
Deferred income taxes	(36,000,000)	115,000,000
Change in assets and liabilities:
Receivables, net	(674,000,000)	(477,000,000)
Accounts payable and accrued liabilities	(408,000,000)	(295,000,000)
Current income taxes	137,000,000	83,000,000
Pension, other postretirement and postemployment liabilities	(36,000,000)	(80,000,000)
Other assets and liabilities	291,000,000	300,000,000
Cash provided by operating activities	1,131,000,000	1,345,000,000
Cash flows from investing activities
Proceeds from investments	65,000,000	41,000,000
Payments for investments	(39,000,000)	(29,000,000)
Net purchases of short-term investments - non fiduciary	38,000,000	22,000,000
Acquisition of businesses, net of cash and funds held on behalf of clients	(143,000,000)	0
Sale of businesses, net of cash and funds held on behalf of clients	22,000,000	9,000,000
Capital expenditures	(68,000,000)	(70,000,000)
Cash used for investing activities	(125,000,000)	(27,000,000)
Cash flows from financing activities
Share repurchase	(1,328,000,000)	(292,000,000)
Issuance of shares for employee benefit plans	(166,000,000)	(140,000,000)
Commercial paper issuances, net of repayments	(409,000,000)	0
Issuance of debt	1,471,000,000	13,000,000
Repayment of debt	0	(400,000,000)
Increase in fiduciary liabilities, net of fiduciary receivables	661,000,000	386,000,000
Cash dividends to shareholders	(229,000,000)	(219,000,000)
Noncontrolling interests and other financing activities	(37,000,000)	(84,000,000)
Cash used for financing activities	(37,000,000)	(736,000,000)
Effect of exchange rates on cash and cash equivalents and funds held on behalf of clients	(423,000,000)	29,000,000
Net increase in cash and cash equivalents and funds held on behalf of clients	546,000,000	611,000,000
Cash, cash equivalents and funds held on behalf of clients at beginning of period	6,645,000,000	6,573,000,000
Cash, cash equivalents and funds held on behalf of clients at end of period	7,191,000,000	7,184,000,000
Reconciliation of cash and cash equivalents and funds held on behalf of clients:
Cash and cash equivalents	740,000,000	1,091,000,000
Funds held on behalf of clients	6,451,000,000	6,093,000,000
Total cash and cash equivalents and funds held on behalf of clients	7,191,000,000	7,184,000,000
Supplemental disclosures:
Interest paid	155,000,000	162,000,000
Income taxes paid, net of refunds	$ 275,000,000	$ 239,000,000