Changes in Equity (Tables)

3 Months Ended

Mar. 31, 2023

Stockholders' Equity Note [Abstract]

Schedule of Changes in Equity

	Millions of Dollars
	Common Stock
	Par Value		Capital in Excess of Par	Treasury Stock	Accum. Other Comprehensive Income (Loss)	Retained Earnings	Total
For the three months ended March 31, 2023
Balances at December 31, 2022	$	21	61,142	(60,189)	(6,000)	53,029	48,003
Net income						2,920	2,920
Other comprehensive loss					(27)		(27)
Dividends declared
Ordinary ($0.51 per common share)						(625)	(625)
Variable return of cash ($0.60 per common share)						(731)	(731)
Repurchase of company common stock				(1,700)			(1,700)
Excise tax on share repurchases				(15)			(15)
Distributed under benefit plans			(42)				(42)
Other							—
Balances at March 31, 2023	$	21	61,100	(61,904)	(6,027)	54,593	47,783

	Millions of Dollars
	Common Stock
	Par Value		Capital in Excess of Par	Treasury Stock	Accum. Other Comprehensive Income (Loss)	Retained Earnings	Total
For the three months ended March 31, 2022
Balances at December 31, 2021	$	21	60,581	(50,920)	(4,950)	40,674	45,406
Net income						5,759	5,759
Other comprehensive income					142		142
Dividends declared
Ordinary ($0.46 per common share)						(603)	(603)
Variable return of cash ($0.30 per common share)						(390)	(390)
Repurchase of company common stock				(1,425)			(1,425)
Distributed under benefit plans			326				326
Other				1		2	3
Balances at March 31, 2022	$	21	60,907	(52,344)	(4,808)	45,442	49,218