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Fair Value of Financial Assets and Liabilities
9 Months Ended
Sep. 30, 2022
Fair Value Disclosures [Abstract]  
Fair Value of Financial Assets and Liabilities
7. Fair Value of Financial Assets and Liabilities
Fair Value Measurements
Accounting guidance for fair value measurements and disclosures provides a single definition of fair value and requires disclosures about assets and liabilities measured at fair value. A hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value is established by this guidance.
Level 1 — Quoted prices are available in active markets for identical assets or liabilities as of the reporting date. The types of assets and liabilities included in Level 1 are highly liquid and actively traded instruments with quoted prices.
Level 2 — Pricing inputs are other than quoted prices in active markets, but are either directly or indirectly observable as of the reporting date. The types of assets and liabilities included in Level 2 are typically either comparable to actively traded securities or contracts, or priced with models using highly observable inputs.
Level 3 — Significant inputs to pricing have little or no observability as of the reporting date. The types of assets and liabilities included in Level 3 are those valued with models requiring significant management judgment or estimation.
Specific valuation methods include:
Cash equivalents — The fair values of cash equivalents are generally based on cost plus accrued interest; money market funds are measured using quoted net asset value.
Interest rate derivatives The fair values of interest rate derivatives are based on broker quotes that utilize current market interest rate forecasts.
Commodity derivatives Methods used to measure the fair value of commodity derivative forwards and options utilize forward prices and volatilities, as well as pricing adjustments for specific delivery locations, and are generally assigned a Level 2 classification. When contractual settlements relate to inactive delivery locations or extend to periods beyond those readily observable on active exchanges or quoted by brokers, the significance of the use of less observable inputs on a valuation is evaluated and may result in Level 3 classification.
Derivative Instruments Fair Value Measurements
NSP-Wisconsin enters into derivative instruments, including forward contracts, futures, swaps and options, for trading purposes and to manage risk in connection with changes in interest rates and utility commodity prices.
Interest Rate Derivatives NSP-Wisconsin may enter into various instruments that effectively fix the yield or price on a specified benchmark interest rate for an anticipated debt issuance for a specific period. These derivative instruments are generally designated as cash flow hedges for accounting purposes. As of Sept. 30, 2022 and Dec. 31, 2021, NSP-Wisconsin had no unsettled interest rate derivatives.

Commodity Derivatives NSP-Wisconsin may enter into derivative instruments to manage variability of future cash flows from changes in commodity prices in its electric and natural gas operations, as well as for trading purposes. This could include the purchase or sale of natural gas to generate electric energy and natural gas for resale.
Consideration of Credit Risk and Concentrations — NSP-Wisconsin continuously monitors the creditworthiness of counterparties to its interest rate derivatives and commodity derivative contracts, prior to settlement, and assesses each counterparty’s ability to perform on the transactions set forth in the contracts. Impact of credit risk was immaterial to the fair value of unsettled commodity derivatives presented on the consolidated balance sheets.
Impact of Derivative Activities on IncomeChanges in the fair value of natural gas commodity derivatives resulted in $1 million in losses for the three and nine months ended Sept. 30, 2022, respectively. Changes in the fair value of natural gas commodity derivatives resulted in $3 million in gains for the three and nine months ended Sept. 30, 2021, which were recognized as regulatory assets and liabilities. The classification as a regulatory asset or liability is based on commission approved regulatory recovery mechanisms.
During the three months ended Sept. 30, 2022 and 2021, there were no settlement gains or losses on natural gas commodity derivatives. During the nine months ended Sept. 30, 2022 and 2021, there were $1 million of settlement losses, respectively, which were recognized subject to purchased natural gas cost recovery mechanisms, which result in reclassifications of derivative settlement gains and losses out of income to a regulatory asset or liability, as appropriate.
NSP-Wisconsin had no derivative instruments designated as fair value hedges during the three and nine months ended Sept. 30, 2022 and 2021.
Recurring Fair Value Measurements — Derivative assets and liabilities measured at fair value on a recurring basis were as follows:
Sept. 30, 2022
Fair ValueFair Value Total
Netting (a)
Total (b)
(Millions of Dollars)Level 1Level 2Level 3
Current derivative assets
Natural gas commodity$— $$— $$— $
Dec. 31, 2021
Fair ValueFair Value Total
Netting (a)
Total (b)
(Millions of Dollars)Level 1Level 2Level 3
Current derivative assets
Natural gas commodity$— $$— $$— $
(a)NSP-Wisconsin nets derivative instruments and related collateral on its consolidated balance sheets when supported by a legally enforceable master netting agreement. Counterparty netting amounts presented exclude settlement receivables and payables and non-derivative amounts that may be subject to the same master netting agreements.
(b)Included in prepayments and other current assets at Sept. 30, 2022 and Dec. 31, 2021 on the consolidated balance sheets.
Fair Value of Long-Term Debt
Other financial instruments for which the carrying amount did not equal fair value:
Sept. 30, 2022Dec. 31, 2021
(Millions of Dollars)Carrying AmountFair ValueCarrying AmountFair Value
Long-term debt, including current portion$1,086 $985 $987 $1,143 
Fair value of NSP-Wisconsin’s long-term debt is estimated based on recent trades and observable spreads from benchmark interest rates for similar securities. Fair value estimates are based on information available to management as of Sept. 30, 2022 and Dec. 31, 2021 and given the observability of the inputs, fair values presented for long-term debt were assigned as Level 2.