Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock	Paid-in Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest in Consolidated Subsidiaries	Treasury Stock, Common
Beginning balance at Dec. 31, 2020	$ 4,983	$ 2,666	$ 0	$ 8,691	$ (362)	$ 9	$ (6,021)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,468	0	0	1,457	0	11	0
Other comprehensive income (loss)	179	0	0	0	179	0	0
Cash dividends	(161)	0	0	(161)	0		0
Cash dividends - Noncontrolling interest						0
Stock plans	(264)	(1)	(32)	(277)	0	0	(510)
Other	(5)	0	0	0	0	(5)	0
Ending balance at Dec. 31, 2021	$ 6,728	2,665	32	9,710	(183)	15	(5,511)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Dividends, Per Share, Declared	$ 0.18
Net income (loss)	$ 1,595	0	0	1,572	0	23	0
Other comprehensive income (loss)	(47)	0	0	0	(47)	0	0
Cash dividends	(435)	0	0	(435)	0		0
Cash dividends - Noncontrolling interest						0
Stock plans	(395)	(1)	(18)	(275)	0	0	(653)
Stock repurchase program	(250)	0	0	0	0	0	(250)
Other	(9)	0	0	0	0	(9)	0
Ending balance at Dec. 31, 2022	$ 7,977	2,664	50	10,572	(230)	29	(5,108)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Dividends, Per Share, Declared	$ 0.48
Net income (loss)	$ 2,662	0	0	2,638	0	24	0
Other comprehensive income (loss)	(101)	0	0	0	(101)	0	0
Cash dividends	(576)	0	0	(576)	0		0
Cash dividends - Noncontrolling interest						0
Stock plans	(282)	(1)	(13)	(98)	0	0	(368)
Stock repurchase program	(800)	0	0	0	0	0	(800)
Other	(11)	0	0	0	0	(11)	0
Ending balance at Dec. 31, 2023	$ 9,433	$ 2,663	$ 63	$ 12,536	$ (331)	$ 42	$ (5,540)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Stock, Dividends, Per Share, Declared	$ 0.64