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Cash Flow Information
12 Months Ended
Dec. 31, 2022
Supplemental Cash Flow Information [Abstract]  
Cash Flow Information
Note 19—Cash Flow Information
Millions of Dollars
202220212020
Noncash Investing Activities
Increase (decrease) in PP&E related to an increase (decrease) in asset retirement obligations$825 442 (116)
Cash Payments
Interest$873 924 785 
Income taxes7,368 856 905 
Net Sales (Purchases) of Investments
Short-term investments purchased$(5,046)(5,554)(12,435)
Short-term investments sold3,102 8,810 12,015 
Investments and long-term receivables purchased(775)(279)(325)
Investments and long-term receivables sold90 114 87 
$(2,629)3,091 (658)
Income tax payments have increased in 2022 as the company is returning to a tax paying position in the U.S. as well as, increased taxes in Norway, and timing of tax payments in Libya.

See Note 3 and Note 12 for additional information on cash and non-cash changes to our consolidated balance sheet associated with our Concho acquisition.