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Fair Value Measurement (Tables)
3 Months Ended
Mar. 31, 2023
Fair Value Disclosures [Abstract]  
Schedule of Fair Value Hierarchy for Gross Financial Assets and Liabilities
The following table summarizes the fair value hierarchy for gross financial assets and liabilities (i.e., unadjusted where the right of setoff exists for commodity derivatives accounted for at fair value on a recurring basis):
Millions of Dollars
March 31, 2023December 31, 2022
Level 1
Level 2
Level 3
Total
Level 1
Level 2
Level 3
Total
Assets
Investments in debt securities
$195 1,073  1,268 178 1,044 — 1,222 
Commodity derivatives
640 464 114 1,218 958 951 128 2,037 
Total assets
$835 1,537 114 2,486 1,136 1,995 128 3,259 
Liabilities
Commodity derivatives$663 485 19 1,167 906 843 261 2,010 
Total liabilities
$663 485 19 1,167 906 843 261 2,010 
Schedule of Commodity Derivative Balances Subject to Right of Setoff
The following table summarizes those commodity derivative balances subject to the right of setoff as presented on our consolidated balance sheet. We have elected to offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements when a legal right of setoff exists.
Millions of Dollars
Amounts Subject to Right of Setoff
Gross
Amounts
Recognized
Amounts Not
Subject to
Right of Setoff
Gross
Amounts
Gross
Amounts
Offset
Net
Amounts
Presented
Cash
Collateral
Net
Amounts
March 31, 2023
Assets$1,218 30 1,188 726 462  462 
Liabilities1,167 24 1,143 726 417 35 382 
December 31, 2022
Assets$2,037 39 1,998 1,176 822 37 785 
Liabilities2,010 20 1,990 1,176 814 52 762 
Schedule of Net Fair Value of Financial Instruments
The following table summarizes the net fair value of financial instruments (i.e., adjusted where the right of setoff exists for commodity derivatives):
Millions of Dollars
Carrying Amount
Fair Value
March 31
2023
December 31
2022
March 31
2023
December 31
2022
Financial assets
Commodity derivatives
492 824 492 824 
Investments in debt securities
1,268 1,222 1,268 1,222 
Financial liabilities
Total debt, excluding finance leases
15,316 15,323 15,914 15,545 
Commodity derivatives
406 782 406 782