Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating Activities:
Net income	$ 1,299	$ 808
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	26	19
Amortization of intangibles	111	31
Provision for losses on accounts receivable	(7)	10
Deferred income taxes	(53)	(3)
Stock-based compensation	94	19
Gain on dispositions	(1,344)	(2)
Loss on extinguishment of debt, net	17	0
Other	24	19
Changes in operating assets and liabilities, net of effect of acquisitions and dispositions:
Accounts receivable	187	65
Prepaid and other current assets	5	(56)
Accounts payable and accrued expenses	(318)	(239)
Unearned revenue	(100)	(61)
Other current liabilities	(239)	25
Net change in prepaid/accrued income taxes	432	172
Net change in other assets and liabilities	88	(39)
Cash provided by operating activities	222	768
Investing Activities:
Payments on short-term debt, net	(219)	0
Capital expenditures	(16)	(18)
Acquisitions, net of cash acquired	295	(9)
Proceeds from dispositions	2,618	2
Changes in short-term investments	4	1
Cash provided by (used for) investing activities	2,901	(24)
Financing Activities:
Proceeds from issuance of senior notes, net	5,395	0
Payments on senior notes	(3,074)	0
Dividends paid to shareholders	(186)	(186)
Distributions to noncontrolling interest holders, net	(55)	(69)
Repurchase of treasury shares	(7,003)	0
Exercise of stock options	3	3
Employee withholding tax on share-based payments	(66)	(41)
Cash used for financing activities	(5,205)	(293)
Effect of exchange rate changes on cash	(16)	(55)
Net change in cash, cash equivalents, and restricted cash	(2,098)	396
Cash, cash equivalents, and restricted cash at beginning of period	6,505	4,122
Cash, cash equivalents, and restricted cash at end of period	$ 4,407	$ 4,518