CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income		$ 2,197	$ 1,503	$ 1,848
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes		(94)	(352)	(35)
Non-cash operating lease cost		65	64	0
Depreciation and amortization		197	328	509
Amortization of capitalized software development costs and intellectual property licenses	[1]	249	225	489
Share-based compensation expense	[2]	218	166	209
Other		59	19	53
Changes in operating assets and liabilities:
Accounts receivable, net		(194)	182	(114)
Software development and intellectual property licenses		(378)	(275)	(372)
Other assets		(119)	171	(56)
Deferred revenues		216	(154)	(122)
Accounts payable		(10)	31	(65)
Accrued expenses and other liabilities		(154)	(77)	(554)
Net cash provided by operating activities		2,252	1,831	1,790
Cash flows from investing activities:
Proceeds from maturities of available-for-sale investments		121	153	116
Purchases of available-for-sale investments		(221)	(65)	(209)
Capital expenditures		(78)	(116)	(131)
Other investing activities		0	6	(6)
Net cash used in investing activities		(178)	(22)	(230)
Cash flows from financing activities:
Proceeds from issuance of common stock to employees		170	105	99
Tax payment related to net share settlements on restricted stock units		(39)	(59)	(94)
Dividends paid		(316)	(283)	(259)
Proceeds from debt issuances, net of discounts		1,994	0	0
Repayment of long-term debt		(1,050)	0	(1,740)
Payment of financing costs		(20)	0	0
Premium payment for early redemption of note		(28)	0	(25)
Other financing activities		0	0	(1)
Net cash provided by (used in) financing activities		711	(237)	(2,020)
Effect of foreign exchange rate changes on cash and cash equivalents		69	(3)	(31)
Net increase (decrease) in cash and cash equivalents and restricted cash		2,854	1,569	(491)
Cash and cash equivalents and restricted cash at beginning of period		5,798	4,229	4,720
Cash and cash equivalents and restricted cash at end of period		8,652	5,798	4,229
Cash paid for income taxes, net of refunds		806	319	560
Cash paid for interest		$ 82	$ 86	$ 150

[1] Excludes deferral and amortization of share-based compensation expense.

[2] Includes the net effects of capitalization, deferral, and amortization of share-based compensation expense.