CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net Income	$ 498	$ 736
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	78	59
Stock-based compensation	46	45
Deferred income taxes	30	44
Changes in assets and liabilities:
Accounts receivable	(117)	(71)
Other current assets	(11)	67
Other assets	(21)	(27)
Lease obligations	(2)	(3)
Accounts payable and accrued liabilities	(296)	(206)
Deferred revenue	290	146
Unrecognized tax benefits and other non-current tax liabilities	(18)	(78)
Other liabilities	(7)	(36)
Net cash provided by operating activities	470	676
Cash flows from investing activities
Capital additions	(59)	(14)
Purchases of investments	(46)	(65)
Sales and maturities of investments	27	45
Cash paid for acquisitions, net of cash acquired	(83)	(138)
Receipts from settlements of net investment hedges	0	1
Payments for settlements of net investment hedges	0	(23)
Net cash used in investing activities	(161)	(194)
Cash flows from financing activities
Issuance of notes	491	0
Proceeds from stock-based compensation plans	8	9
Repurchase of shares related to stock-based compensation	(58)	(51)
Treasury shares	(560)	(132)
Cash paid for ASR contract relating to shares retained by counterparty until final settlement	(98)	0
Dividends	(130)	(116)
Debt issuance costs and related fees	(5)	0
Net cash used in financing activities	(352)	(290)
Effect of exchange rate changes on cash and cash equivalents	(18)	(20)
(Decrease) increase in cash and cash equivalents	(61)	172
Cash and cash equivalents, beginning of period	1,811	2,597
Cash and cash equivalents, end of period	$ 1,750	$ 2,769