XML 83 R54.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Derivative Accounting (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Outstanding gross notional amount of derivatives, which represents both purchases and sales (does not reflect net position) | The following table shows the outstanding gross notional volume of derivatives, which represent both purchases and sales (does not reflect net position):
|  |  | Quantity
Commodity |  | Unit of Measure | December 31, 2021 |  | December 31, 2020
Power |  | GWh | — |  |  | 368 |
Gas |  | Billion cubic feet | 155 |  |  | 205 |
Gains and losses from derivative instruments in designated cash flow accounting hedges relationships | The following table provides information about APS’s gains and losses from derivative instruments in designated cash flow accounting hedging relationships (dollars in thousands):
|  | Financial Statement |  | Year Ended December 31,
Commodity Contracts |  | Location |  | 2021 |  | 2020 |  | 2019
Loss Reclassified from Accumulated OCI into Income (Effective Portion Realized) (a) |  | Fuel and purchased power (b) |  | $ | — |  |  | $ | (763) |  |  | $ | (1,512) |
(a)During the years ended December 31, 2021, 2020, and 2019, we had no gains or losses reclassified from accumulated OCI to earnings related to discontinued cash flow hedges. (b)Amounts are before the effect of PSA deferrals.
Gains and losses from derivative instruments not designated as accounting hedges instruments | The following table provides information about gains and losses from derivative instruments not designated as accounting hedging instruments (dollars in thousands):
|  | Financial Statement |  | Year Ended December 31,
Commodity Contracts |  | Location |  | 2021 |  | 2020 |  | 2019
Net Gain (Loss) Recognized in Income |  | Fuel and purchased power (a) |  | $ | 216,847 |  |  | $ | (3,178) |  |  | $ | (84,953) |
(a)Amounts are before the effect of PSA deferrals.
Schedule of the entity's fair value of risk management activities reported on a gross basis and the impacts on offsetting liabilities | The following tables provide information about the fair value of our risk management activities reported on a gross basis and the impacts of offsetting. These amounts relate to commodity contracts and are located in the assets and liabilities from risk management activities lines of our Consolidated Balance Sheets.
As of December 31, 2021: (dollars in thousands) |  | Gross Recognized Derivatives (a) |  | Amounts Offset (b) |  | Net Recognized Derivatives |  | Other (c) |  | Amounts Reported on Balance Sheets
Current assets |  | $ | 66,777 |  |  | $ | (3,346) |  |  | $ | 63,431 |  |  | $ | 50 |  |  | $ | 63,481 |
Investments and other assets |  | 48,302 |  |  | (1,394) |  |  | 46,908 |  |  | — |  |  | 46,908 |
Total assets |  | 115,079 |  |  | (4,740) |  |  | 110,339 |  |  | 50 |  |  | 110,389 |
Current liabilities |  | (6,084) |  |  | 3,346 |  |  | (2,738) |  |  | (1,635) |  |  | (4,373) |
Deferred credits and other |  | (1,394) |  |  | 1,394 |  |  | — |  |  | — |  |  | — |
Total liabilities |  | (7,478) |  |  | 4,740 |  |  | (2,738) |  |  | (1,635) |  |  | (4,373) |
Total |  | $ | 107,601 |  |  | $ | — |  |  | $ | 107,601 |  |  | $ | (1,585) |  |  | $ | 106,016 |
(a)All of our gross recognized derivative instruments were subject to master netting arrangements. (b)No cash collateral has been provided to counterparties, or received from counterparties, that is subject to offsetting. (c)Represents cash collateral and cash margin that is not subject to offsetting. Amounts relate to non-derivative instruments, derivatives qualifying for scope exceptions, or collateral and margin posted in excess of the recognized derivative instrument. Includes cash collateral received from counterparties of $1,635 and cash margin provided to counterparties of $50.
As of December 31, 2020: (dollars in thousands) |  | Gross Recognized Derivatives (a) |  | Amounts Offset (b) |  | Net Recognized Derivatives |  | Other (c) |  | Amounts Reported on Balance Sheets
Current assets |  | $ | 5,870 |  |  | $ | (2,939) |  |  | $ | 2,931 |  |  | $ | — |  |  | $ | 2,931 |
Investments and other assets |  | 3,150 |  |  | (1,332) |  |  | 1,818 |  |  | — |  |  | 1,818 |
Total assets |  | 9,020 |  |  | (4,271) |  |  | 4,749 |  |  | — |  |  | 4,749 |
Current liabilities |  | (9,211) |  |  | 2,939 |  |  | (6,272) |  |  | (1,285) |  |  | (7,557) |
Deferred credits and other |  | (12,394) |  |  | 1,332 |  |  | (11,062) |  |  | — |  |  | (11,062) |
Total liabilities |  | (21,605) |  |  | 4,271 |  |  | (17,334) |  |  | (1,285) |  |  | (18,619) |
Total |  | $ | (12,585) |  |  | $ | — |  |  | $ | (12,585) |  |  | $ | (1,285) |  |  | $ | (13,870) |
(a)All of our gross recognized derivative instruments were subject to master netting arrangements. (b)No cash collateral has been provided to counterparties, or received from counterparties, that is subject to offsetting. (c)Represents cash collateral and cash margin that is not subject to offsetting. Amounts relate to non-derivative instruments, derivatives qualifying for scope exceptions, or collateral and margin posted in excess of the recognized derivative instrument. Includes cash collateral received from counterparties of $1,285.
Schedule of the entity's fair value of risk management activities reported on a gross basis and the impacts on offsetting assets | The following tables provide information about the fair value of our risk management activities reported on a gross basis and the impacts of offsetting. These amounts relate to commodity contracts and are located in the assets and liabilities from risk management activities lines of our Consolidated Balance Sheets.
As of December 31, 2021: (dollars in thousands) |  | Gross Recognized Derivatives (a) |  | Amounts Offset (b) |  | Net Recognized Derivatives |  | Other (c) |  | Amounts Reported on Balance Sheets
Current assets |  | $ | 66,777 |  |  | $ | (3,346) |  |  | $ | 63,431 |  |  | $ | 50 |  |  | $ | 63,481 |
Investments and other assets |  | 48,302 |  |  | (1,394) |  |  | 46,908 |  |  | — |  |  | 46,908 |
Total assets |  | 115,079 |  |  | (4,740) |  |  | 110,339 |  |  | 50 |  |  | 110,389 |
Current liabilities |  | (6,084) |  |  | 3,346 |  |  | (2,738) |  |  | (1,635) |  |  | (4,373) |
Deferred credits and other |  | (1,394) |  |  | 1,394 |  |  | — |  |  | — |  |  | — |
Total liabilities |  | (7,478) |  |  | 4,740 |  |  | (2,738) |  |  | (1,635) |  |  | (4,373) |
Total |  | $ | 107,601 |  |  | $ | — |  |  | $ | 107,601 |  |  | $ | (1,585) |  |  | $ | 106,016 |
(a)All of our gross recognized derivative instruments were subject to master netting arrangements. (b)No cash collateral has been provided to counterparties, or received from counterparties, that is subject to offsetting. (c)Represents cash collateral and cash margin that is not subject to offsetting. Amounts relate to non-derivative instruments, derivatives qualifying for scope exceptions, or collateral and margin posted in excess of the recognized derivative instrument. Includes cash collateral received from counterparties of $1,635 and cash margin provided to counterparties of $50.
As of December 31, 2020: (dollars in thousands) |  | Gross Recognized Derivatives (a) |  | Amounts Offset (b) |  | Net Recognized Derivatives |  | Other (c) |  | Amounts Reported on Balance Sheets
Current assets |  | $ | 5,870 |  |  | $ | (2,939) |  |  | $ | 2,931 |  |  | $ | — |  |  | $ | 2,931 |
Investments and other assets |  | 3,150 |  |  | (1,332) |  |  | 1,818 |  |  | — |  |  | 1,818 |
Total assets |  | 9,020 |  |  | (4,271) |  |  | 4,749 |  |  | — |  |  | 4,749 |
Current liabilities |  | (9,211) |  |  | 2,939 |  |  | (6,272) |  |  | (1,285) |  |  | (7,557) |
Deferred credits and other |  | (12,394) |  |  | 1,332 |  |  | (11,062) |  |  | — |  |  | (11,062) |
Total liabilities |  | (21,605) |  |  | 4,271 |  |  | (17,334) |  |  | (1,285) |  |  | (18,619) |
Total |  | $ | (12,585) |  |  | $ | — |  |  | $ | (12,585) |  |  | $ | (1,285) |  |  | $ | (13,870) |
(a)All of our gross recognized derivative instruments were subject to master netting arrangements. (b)No cash collateral has been provided to counterparties, or received from counterparties, that is subject to offsetting. (c)Represents cash collateral and cash margin that is not subject to offsetting. Amounts relate to non-derivative instruments, derivatives qualifying for scope exceptions, or collateral and margin posted in excess of the recognized derivative instrument. Includes cash collateral received from counterparties of $1,285.
Information about derivative instruments that have credit-risk-related contingent features | The following table provides information about our derivative instruments that have credit-risk-related contingent features (dollars in thousands):
| December 31, 2021
Aggregate fair value of derivative instruments in a net liability position | $ | 7,478 |
Cash collateral posted | — |
Additional cash collateral in the event credit-risk related contingent features were fully triggered (a) | 2,658 |
(a)This amount is after counterparty netting and includes those contracts which qualify for scope exceptions, which are excluded from the derivative details above.

X
- Definition Tabular disclosure of derivative instruments that have credit-risk-related contingent features. + References No definition available. + Details
Name: | pnw_ScheduleOfDerivativeCreditRiskRelatedContingentFeaturesTableTextBlock
Namespace Prefix: | pnw_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative and other financial assets that are subject to offsetting, including master netting arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225877-175312 + Details
Name: | us-gaap_OffsettingAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative and other financial liabilities that are subject to offsetting, including master netting arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225877-175312 + Details
Name: | us-gaap_OffsettingLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624181-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
Name: | us-gaap_ScheduleOfNotionalAmountsOfOutstandingDerivativePositionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of derivative instrument not designated or qualifying as hedging instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959 + Details
Name: | us-gaap_ScheduleOfOtherDerivativesNotDesignatedAsHedgingInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration