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Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2022

Supplemental Cash Flow Information [Abstract]

Cash Flow Information

			Millions of Dollars
			2022			2021			2020
Noncash Investing Activities
Increase (decrease) in PP&E related to an increase (decrease) in asset retirement obligations			$	825		442			(116)
Cash Payments
Interest			$	873		924			785
Income taxes			7,368			856			905
Net Sales (Purchases) of Investments
Short-term investments purchased			$	(5,046)		(5,554)			(12,435)
Short-term investments sold			3,102			8,810			12,015
Investments and long-term receivables purchased			(775)			(279)			(325)
Investments and long-term receivables sold			90			114			87
			$	(2,629)		3,091			(658)

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