Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023		Mar. 31, 2022
Shareholders' equity activity [Roll Forward]
Beginning Balance	$ 7,977		$ 6,728
Net income (loss)	655		264
Other comprehensive income (loss)	1		5
Cash dividends	(145)		(108)
Stock Repurchased During Period, Value	(100)
Stock plans	60		144
Other	3
Ending Balance	$ 8,445		$ 7,033
Common Stock, Dividends, Per Share, Declared			$ 0.12
Stock Repurchased During Period, Shares	2.9
Common Shares
Shareholders' equity activity [Roll Forward]
Beginning Balance	$ 2,664		$ 2,665
Net income (loss)	0		0
Other comprehensive income (loss)	0		0
Cash dividends	0		0
Stock Repurchased During Period, Value	0
Stock plans	0		0
Other	0
Ending Balance	2,664		2,665
Paid-in Capital in Excess of Par Value
Shareholders' equity activity [Roll Forward]
Beginning Balance	50		32
Net income (loss)	0		0
Other comprehensive income (loss)	0		0
Cash dividends	0		0
Stock Repurchased During Period, Value	0
Stock plans	50		(32)
Other	0
Ending Balance	0		0
Treasury Stock
Shareholders' equity activity [Roll Forward]
Beginning Balance	(5,108)		(5,511)
Net income (loss)	0		0
Other comprehensive income (loss)	0		0
Cash dividends	0		0
Stock Repurchased During Period, Value	100
Stock plans	113		261
Other	0
Ending Balance	(5,095)		(5,250)
Retained Earnings
Shareholders' equity activity [Roll Forward]
Beginning Balance	10,572		9,710
Net income (loss)	651		263
Other comprehensive income (loss)	0		0
Cash dividends	(145)		(108)
Stock Repurchased During Period, Value	0
Stock plans	3	[1]	85
Other	0
Ending Balance	11,075		9,780
Accumulated Other Comprehensive Income (Loss)
Shareholders' equity activity [Roll Forward]
Beginning Balance	(230)		(183)
Net income (loss)	0		0
Other comprehensive income (loss)	1		5
Cash dividends	0		0
Stock Repurchased During Period, Value	0
Stock plans	0		0
Other	0
Ending Balance	(229)		(178)
Noncontrolling Interest in Consolidated Subsidiaries
Shareholders' equity activity [Roll Forward]
Beginning Balance	29		15
Net income (loss)	4		1
Other comprehensive income (loss)	0		0
Cash dividends	0		0
Stock Repurchased During Period, Value	0
Stock plans	0		0
Other	3
Ending Balance	$ 30		$ 16

[1] In the first quarter of 2023, we issued common stock from treasury shares for stock options exercised, restricted stock grants, and our employee stock purchase plan. As a result, additional paid in capital was reduced to zero, which resulted in a reduction of retained earnings by $3 million. Additional issuances from treasury shares could similarly impact additional paid in capital and retained earnings.