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Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2023

Supplemental Cash Flow Information [Abstract]

Cash Flow Information

			Millions of Dollars
			2023			2022			2021
Noncash Investing and Financing Activities
Increase (decrease) in PP&E related to an increase (decrease) in asset retirement obligations			$	727		825			442
Fair value of contingent consideration on acquisition			320
Cash Payments
Interest			$	701		873			924
Income taxes			5,406			7,368			856
Net Sales (Purchases) of Investments
Short-term investments purchased			$	(1,463)		(5,046)			(5,554)
Short-term investments sold			3,574			3,102			8,810
Investments and long-term receivables purchased			(867)			(775)			(279)
Investments and long-term receivables sold			129			90			114
			$	1,373		(2,629)			3,091

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