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Fair Value Measurements
9 Months Ended
Sep. 30, 2023
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
Fair Values – Recurring
The following tables present assets and liabilities accounted for at fair value on a recurring basis as of September 30, 2023 and December 31, 2022 by hierarchy level.
September 30, 2023
(In millions)Level 1Level 2Level 3Total
Derivative instruments, assets
Commodity(a)
$— $$— $
Interest rate - designated as cash flow hedges — 25 — 25 
Derivative instruments, assets$— $28 $— $28 
 December 31, 2022
(In millions)Level 1Level 2Level 3Total
Derivative instruments, assets
Commodity(a)
$— $10 $— $10 
Interest rate - designated as cash flow hedges— 24 — 24 
Derivative instruments, assets$— $34 $— $34 
(a)Commodity derivative instruments are recorded on a net basis in our consolidated balance sheet. See Note 12.
As of September 30, 2023, our commodity derivatives include three-way collars. These instruments are measured at fair value using either a Black-Scholes or a modified Black-Scholes Model. For three-way collars, inputs to the models include commodity prices and implied volatility and are categorized as Level 2 because predominantly all assumptions and inputs are observable in active markets throughout the term of the instruments.
The forward starting interest rate swaps are measured at fair value with a market approach using actionable broker quotes, which are Level 2 inputs. See Note 12 for details on the forward starting interest rate swaps.
Fair Values – Financial Instruments
Our current assets and liabilities include financial instruments, the most significant of which are receivables, commercial paper borrowings, the current portion of our long-term debt and payables. We believe the carrying values of our receivables, commercial paper borrowings and payables approximate fair value. Our fair value assessment incorporates a variety of considerations, including (1) the short-term duration of the instruments, (2) our credit rating and (3) our historical incurrence of and expected future insignificant bad debt expense, which includes an evaluation of counterparty credit risk.
The following table summarizes financial instruments, excluding receivables, commercial paper borrowings, payables and derivative financial instruments, and their reported fair values by individual balance sheet line item at September 30, 2023 and December 31, 2022.
September 30, 2023December 31, 2022
(In millions)Fair ValueCarrying AmountFair ValueCarrying Amount
Financial assets    
Other noncurrent assets$$27 $10 $28 
Total financial assets$$27 $10 $28 
Financial liabilities    
Other current liabilities$132 $198 $140 $204 
Long-term debt, including current portion(a)
5,126 5,297 5,806 5,948 
Deferred credits and other liabilities45 45 73 73 
Total financial liabilities$5,303 $5,540 $6,019 $6,225 
(a)Excludes debt issuance costs.
Fair values of our financial assets included in other noncurrent assets, and of our financial liabilities included in other current liabilities and deferred credits and other liabilities, are measured using an income approach and most inputs are internally generated, which results in a Level 3 classification. Estimated future cash flows are discounted using a rate deemed appropriate to obtain the fair value.
Our fixed rate debt instruments are publicly traded. The fair value of our fixed rate debt is measured using a market approach, based upon quotes from major financial institutions, which are Level 2 inputs. Our floating rate debt is non-public and consists of borrowings under our Term Loan Facility and Revolving Credit Facility. The fair value of our floating rate debt approximates the carrying value and is estimated based on observable market-based inputs, which results in a Level 2 classification.