Debt (Tables)

12 Months Ended

Dec. 31, 2022

Debt Disclosure [Abstract]

Schedule of debt

Our total debt, including short-term borrowings and current maturities of long-term debt, consisted of the following:

	December 31
Millions of dollars	2022		2021
5.0% senior notes due November 2045	$	2,000	$	2,000
4.85% senior notes due November 2035	1,000		1,000
7.45% senior notes due September 2039	1,000		1,000
2.92% senior notes due March 2030	1,000		1,000
4.75% senior notes due August 2043	900		900
6.7% senior notes due September 2038	800		800
3.5% senior notes due August 2023	—		600
4.5% senior notes due November 2041	500		500
3.8% senior notes due November 2025	400		1,000
7.6% senior debentures due August 2096	294		300
6.75% notes due February 2027	104		104
Other	6		11
Unamortized debt issuance costs and discounts	(76)		(77)
Total	7,928		9,138
Short-term borrowings and current maturities of long-term debt	—		(11)
Total long-term debt	$	7,928	$	9,127