Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities:
Net income	$ 3,522	$ 3,263	$ 2,534
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	108	82	83
Amortization of intangibles	905	96	123
Provision for losses on accounts receivable	24	14	17
Deferred income taxes	(353)	13	(31)
Stock-based compensation	214	122	90
Gain on dispositions	(1,898)	(11)	(16)
Loss on extinguishment of debt, net	8	0	279
Lease impairment charges	132	31	120
Other	15	58	121
Changes in operating assets and liabilities, net of effect of acquisitions and dispositions:
Accounts receivable	36	(144)	18
Prepaid and other current assets	(123)	(86)	(85)
Accounts payable and accrued expenses	43	38	132
Unearned revenue	37	198	220
Other current liabilities	(2)	(45)	(15)
Net change in prepaid/accrued income taxes	(135)	(36)	(2)
Net change in other assets and liabilities	70	5	(21)
Cash provided by operating activities	2,603	3,598	3,567
Investing Activities:
Capital expenditures	(89)	(35)	(76)
Acquisitions, net of cash acquired	210	(99)	(201)
Proceeds from dispositions	3,509	16	18
Changes in short-term investments	(2)	(2)	19
Cash provided by (used for) investing activities	3,628	(120)	(240)
Financing Activities:
Payments on short-term debt, net	(32)	0	0
Proceeds from issuance of senior notes, net	5,395	0	1,276
Payments on senior notes	(3,698)	0	(1,394)
Dividends paid to shareholders	(1,024)	(743)	(645)
Distributions to noncontrolling interest holders	(270)	(227)	(194)
Proceeds from noncontrolling interest holders	410	0	0
Repurchase of treasury shares	(12,004)	0	(1,164)
Exercise of stock options	7	13	16
Employee withholding tax on share-based payments	(110)	(56)	(61)
Cash used for financing activities	(11,326)	(1,013)	(2,166)
Effect of exchange rate changes on cash	(123)	(82)	75
Net change in cash, cash equivalents, and restricted cash	(5,218)	2,383	1,236
Cash, cash equivalents, and restricted cash at beginning of year	6,505	4,122	2,886
Cash, cash equivalents, and restricted cash at end of year	1,287	6,505	4,122
Cash paid during the year for:
Interest	240	130	159
Income taxes	$ 1,555	$ 883	$ 683