CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Millions	Total	Cumulative effect of adoption of accounting standards update	Common Stock	Treasury Stock	Additional Paid-in Capital	Additional Paid-in Capital Cumulative effect of adoption of accounting standards update	Retained Earnings	Retained Earnings Cumulative effect of adoption of accounting standards update	Total AOCI, net of tax
Balance (in shares) at Dec. 31, 2020			63,406	(22,447)
Balance at Dec. 31, 2020	$ 4,893		$ 0	$ (24,128)	$ 5,851		$ 23,288		$ (118)
Increase (Decrease) in Stockholders' Equity
Net income	1,165						1,165
Foreign currency translation adjustments, net of tax	(57)								(57)
Net unrealized gains (losses) on available-for-sale securities	31								31
Conversion of debt	(86)				(86)
Exercise of stock options and vesting of restricted stock units and performance share units (in shares)			178
Exercise of stock options and vesting of restricted stock units and performance share units	$ 5				5
Repurchase of common stock (in shares)	(71)			(71)
Repurchase of common stock	$ (162)			$ (162)
Stock-based compensation and other stock-based payments	389				389
Balance (in shares) at Dec. 31, 2021			63,584	(22,518)
Balance at Dec. 31, 2021	6,178	$ (66)	$ 0	$ (24,290)	6,159	$ (96)	24,453	$ 30	(144)
Increase (Decrease) in Stockholders' Equity
Net income	3,058						3,058
Foreign currency translation adjustments, net of tax	(111)								(111)
Net unrealized gains (losses) on available-for-sale securities	(12)								(12)
Exercise of stock options and vesting of restricted stock units and performance share units (in shares)			197
Exercise of stock options and vesting of restricted stock units and performance share units	$ 7				7
Repurchase of common stock (in shares)	(3,400)			(3,400)
Repurchase of common stock	$ (6,693)			$ (6,693)
Stock-based compensation and other stock-based payments	421				421
Balance (in shares) at Dec. 31, 2022			63,781	(25,918)
Balance at Dec. 31, 2022	2,782		$ 0	$ (30,983)	6,491		27,541		(267)
Increase (Decrease) in Stockholders' Equity
Net income	4,289						4,289
Foreign currency translation adjustments, net of tax	(63)								(63)
Net unrealized gains (losses) on available-for-sale securities	7								7
Exercise of stock options and vesting of restricted stock units and performance share units (in shares)			267
Exercise of stock options and vesting of restricted stock units and performance share units	$ 134				134
Repurchase of common stock (in shares)	(3,732)			(3,732)
Repurchase of common stock	$ (10,443)			$ (10,443)
Stock-based compensation and other stock-based payments	550				550
Balance (in shares) at Dec. 31, 2023			64,048	(29,650)
Balance at Dec. 31, 2023	$ (2,744)		$ 0	$ (41,426)	$ 7,175		$ 31,830		$ (323)