CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Capital in excess of par value	Treasury shares at cost	Accumulated Other Comprehensive Income (loss)	Accumulated deficit	Total stockholders’ equity	Non- controlling interests
Beginning balance (in shares) at Dec. 31, 2020		280,475
Beginning balance at Dec. 31, 2020	$ 9,151	$ 59	$ 14,133	$ (1,037)	$ 117	$ (4,328)	$ 8,944	$ 207
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,906					1,871	1,871	35
Other comprehensive income	(69)				(69)		(69)
Share-based compensation plans	341		341				341
Shares issued pursuant to stock awards (in shares)		5,104
Shares issued pursuant to stock awards	62			525		(463)	62
Stock Repurchased and Retired During Period, Shares		(20,629)
Treasury shares repurchased and retired	(4,015)	$ (3)	(747)	(1,420)		(1,845)	(4,015)
Dividends common stock	(606)					(606)	(606)
Ending balance (in shares) at Dec. 31, 2021		264,950
Ending balance at Dec. 31, 2021	6,770	$ 56	13,727	(1,932)	48	(5,371)	6,528	242
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,833					2,787	2,787	46
Other comprehensive income	28				28		28
Share-based compensation plans	364		364				364
Shares issued pursuant to stock awards (in shares)		2,843
Shares issued pursuant to stock awards	59			562		(503)	59
Stock Repurchased and Retired During Period, Shares		(8,330)
Treasury shares repurchased and retired	(1,429)			(1,429)			(1,429)
Change in participation	0					(3)	(3)	3
Dividends common stock	(885)					(885)	(885)
Ending balance (in shares) at Dec. 31, 2022		259,463
Ending balance at Dec. 31, 2022	7,740	$ 56	14,091	(2,799)	76	(3,975)	7,449	291
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,822					2,797	2,797	25
Other comprehensive income	14				14		14
Share-based compensation plans	410		410				410
Shares issued pursuant to stock awards (in shares)		3,187
Shares issued pursuant to stock awards	71			638		(567)	71
Stock Repurchased and Retired During Period, Shares		(5,460)
Treasury shares repurchased and retired	(1,049)			(1,049)			(1,049)
Dividends common stock	(1,048)					(1,048)	(1,048)
Ending balance (in shares) at Dec. 31, 2023		257,190
Ending balance at Dec. 31, 2023	$ 8,960	$ 56	$ 14,501	$ (3,210)	$ 90	$ (2,793)	$ 8,644	$ 316