Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Shareholders' equity activity [Roll Forward]
Beginning Balance	$ 10,548	$ 9,433
Net income (loss)	203	609
Other comprehensive income (loss)	(6)	0
Cash dividends	(147)	(151)
Stock Repurchased During Period, Value	(250)	(250)
Stock plans	(60)	(41)
Other	(1)	0
Ending Balance	$ 10,409	$ 9,682
Common Stock, Dividends, Per Share, Declared	$ 0.17	$ 0.17
Stock Repurchased During Period, Shares	9.6	7.0
Common Shares
Shareholders' equity activity [Roll Forward]
Beginning Balance	$ 2,662	$ 2,663
Net income (loss)	0	0
Other comprehensive income (loss)	0	0
Cash dividends	0	0
Stock Repurchased During Period, Value	0	0
Stock plans	(1)	(1)
Other	0	0
Ending Balance	2,661	2,662
Paid-in Capital in Excess of Par Value
Shareholders' equity activity [Roll Forward]
Beginning Balance	79	63
Net income (loss)	0	0
Other comprehensive income (loss)	0	0
Cash dividends	0	0
Stock Repurchased During Period, Value	0	0
Stock plans	(20)	(63)
Other	0	0
Ending Balance	59	0
Retained Earnings
Shareholders' equity activity [Roll Forward]
Beginning Balance	14,332	12,536
Net income (loss)	204	606
Other comprehensive income (loss)	0	0
Cash dividends	(147)	(151)
Stock Repurchased During Period, Value	0	0
Stock plans	0	(3)
Other	0	0
Ending Balance	14,389	12,988
Accumulated Other Comprehensive Income (Loss)
Shareholders' equity activity [Roll Forward]
Beginning Balance	(353)	(331)
Net income (loss)	0	0
Other comprehensive income (loss)	(6)	(1)
Cash dividends	0	0
Stock Repurchased During Period, Value	0	0
Stock plans	0	0
Other	0	0
Ending Balance	(359)	(332)
Noncontrolling Interest in Consolidated Subsidiaries
Shareholders' equity activity [Roll Forward]
Beginning Balance	42	42
Net income (loss)	(1)	3
Other comprehensive income (loss)	0	1
Cash dividends	0	0
Stock Repurchased During Period, Value	0	0
Stock plans	0	0
Other	(1)	0
Ending Balance	42	46
Treasury Stock, Common
Shareholders' equity activity [Roll Forward]
Beginning Balance	(6,214)	(5,540)
Net income (loss)	0	0
Other comprehensive income (loss)	0	0
Cash dividends	0	0
Stock Repurchased During Period, Value	250	250
Stock plans	(81)	(108)
Other	0	0
Ending Balance	$ (6,383)	$ (5,682)