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v3.23.3

Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2023
Changes in Accumulated Other Comprehensive Income (Loss) by Component |
|  | Cash Flow Hedges |  | Pension |  |
Three Months Ended September 30, 2023 |  | Commodity |  | Interest Rate |  | and OPEB |  | Total
|  | (in millions)
Balance in AOCI as of June 30, 2023 |  | $ | 93.5 |  |  | $ | 12.7 |  |  | $ | (142.6) |  |  | $ | (36.4) |
Change in Fair Value Recognized in AOCI, Net of Tax |  | 19.3 |  |  | (6.9) |  |  | — |  |  | 12.4 |
Amount of (Gain) Loss Reclassified from AOCI |  |  |  |  |  |  |  |
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation (a) |  | (15.6) |  |  | — |  |  | — |  |  | (15.6) |
Interest Expense (a) |  | — |  |  | (1.3) |  |  | — |  |  | (1.3) |
Amortization of Prior Service Cost (Credit) |  | — |  |  | — |  |  | (5.3) |  |  | (5.3) |
Amortization of Actuarial (Gains) Losses |  | — |  |  | — |  |  | 1.3 |  |  | 1.3 |
Reclassifications from AOCI, before Income Tax Benefit |  | (15.6) |  |  | (1.3) |  |  | (4.0) |  |  | (20.9) |
Income Tax Benefit |  | (3.4) |  |  | (0.2) |  |  | (0.8) |  |  | (4.4) |
Reclassifications from AOCI, Net of Income Tax Benefit |  | (12.2) |  |  | (1.1) |  |  | (3.2) |  |  | (16.5) |
Net Current Period Other Comprehensive Income (Loss) |  | 7.1 |  |  | (8.0) |  |  | (3.2) |  |  | (4.1) |
Balance in AOCI as of September 30, 2023 |  | $ | 100.6 |  |  | $ | 4.7 |  |  | $ | (145.8) |  |  | $ | (40.5) |
|  | Cash Flow Hedges |  | Pension |  |
Three Months Ended September 30, 2022 |  | Commodity |  | Interest Rate |  | and OPEB |  | Total
|  | (in millions)
Balance in AOCI as of June 30, 2022 |  | $ | 533.6 |  |  | $ | (10.8) |  |  | $ | 28.6 |  |  | $ | 551.4 |
Change in Fair Value Recognized in AOCI, Net of Tax |  | 94.3 |  |  | 7.4 |  |  | — |  |  | 101.7 |
Amount of (Gain) Loss Reclassified from AOCI |  |  |  |  |  |  |  |
Generation & Marketing Revenues (a) |  | 0.2 |  |  | — |  |  | — |  |  | 0.2 |
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation (a) |  | (222.6) |  |  | — |  |  | — |  |  | (222.6) |
Interest Expense (a) |  | — |  |  | 0.9 |  |  | — |  |  | 0.9 |
Amortization of Prior Service Cost (Credit) |  | — |  |  | — |  |  | (6.2) |  |  | (6.2) |
Amortization of Actuarial (Gains) Losses |  | — |  |  | — |  |  | 2.2 |  |  | 2.2 |
Reclassifications from AOCI, before Income Tax (Expense) Benefit |  | (222.4) |  |  | 0.9 |  |  | (4.0) |  |  | (225.5) |
Income Tax (Expense) Benefit |  | (46.6) |  |  | 0.1 |  |  | (0.8) |  |  | (47.3) |
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit |  | (175.8) |  |  | 0.8 |  |  | (3.2) |  |  | (178.2) |
Net Current Period Other Comprehensive Income (Loss) |  | (81.5) |  |  | 8.2 |  |  | (3.2) |  |  | (76.5) |
Balance in AOCI as of September 30, 2022 |  | $ | 452.1 |  |  | $ | (2.6) |  |  | $ | 25.4 |  |  | $ | 474.9 |
|  | Cash Flow Hedges |  | Pension |  |
Nine Months Ended September 30, 2023 |  | Commodity |  | Interest Rate |  | and OPEB |  | Total
|  | (in millions)
Balance in AOCI as of December 31, 2022 |  | $ | 223.5 |  |  | $ | 0.3 |  |  | $ | (140.1) |  |  | $ | 83.7 |
Change in Fair Value Recognized in AOCI, Net of Tax |  | (170.1) |  |  | 5.3 |  |  | (12.9) |  |  | (177.7) |
Amount of (Gain) Loss Reclassified from AOCI |  |  |  |  |  |  |  |
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation (a) |  | 59.7 |  |  | — |  |  | — |  |  | 59.7 |
Interest Expense (a) |  | — |  |  | (1.1) |  |  | — |  |  | (1.1) |
Amortization of Prior Service Cost (Credit) |  | — |  |  | — |  |  | (15.9) |  |  | (15.9) |
Amortization of Actuarial (Gains) Losses |  | — |  |  | — |  |  | 3.9 |  |  | 3.9 |
Reclassifications from AOCI, before Income Tax (Expense) Benefit |  | 59.7 |  |  | (1.1) |  |  | (12.0) |  |  | 46.6 |
Income Tax (Expense) Benefit |  | 12.5 |  |  | (0.2) |  |  | (2.5) |  |  | 9.8 |
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit |  | 47.2 |  |  | (0.9) |  |  | (9.5) |  |  | 36.8 |
Reclassifications of KPCo Pension and OPEB Regulatory Assets from AOCI |  | — |  |  | — |  |  | 21.1 |  |  | 21.1 |
Income Tax (Expense) Benefit |  | — |  |  | — |  |  | 4.4 |  |  | 4.4 |
Reclassifications of KPCo Pension and OPEB Regulatory Assets from AOCI, Net of Income Tax (Expense) Benefit |  | — |  |  | — |  |  | 16.7 |  |  | 16.7 |
Net Current Period Other Comprehensive Income (Loss) |  | (122.9) |  |  | 4.4 |  |  | (5.7) |  |  | (124.2) |
Balance in AOCI as of September 30, 2023 |  | $ | 100.6 |  |  | $ | 4.7 |  |  | $ | (145.8) |  |  | $ | (40.5) |
|  | Cash Flow Hedges |  | Pension |  |
Nine Months Ended September 30, 2022 |  | Commodity |  | Interest Rate |  | and OPEB |  | Total
|  | (in millions)
Balance in AOCI as of December 31, 2021 |  | $ | 163.7 |  |  | $ | (21.3) |  |  | $ | 42.4 |  |  | $ | 184.8 |
Change in Fair Value Recognized in AOCI, Net of Tax |  | 629.8 |  |  | 16.2 |  |  | — |  |  | 646.0 |
Amount of (Gain) Loss Reclassified from AOCI |  |  |  |  |  |  |  |
Generation & Marketing Revenues (a) |  | 0.2 |  |  | — |  |  | — |  |  | 0.2 |
Purchased Electricity, Fuel and Other Consumables Used for Electric Generation (a) |  | (432.3) |  |  | — |  |  | — |  |  | (432.3) |
Interest Expense (a) |  | — |  |  | 3.1 |  |  | — |  |  | 3.1 |
Amortization of Prior Service Cost (Credit) |  | — |  |  | — |  |  | (16.5) |  |  | (16.5) |
Amortization of Actuarial (Gains) Losses |  | — |  |  | — |  |  | 6.4 |  |  | 6.4 |
Reclassifications from AOCI, before Income Tax (Expense) Benefit |  | (432.1) |  |  | 3.1 |  |  | (10.1) |  |  | (439.1) |
Income Tax (Expense) Benefit |  | (90.7) |  |  | 0.6 |  |  | (2.1) |  |  | (92.2) |
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit |  | (341.4) |  |  | 2.5 |  |  | (8.0) |  |  | (346.9) |
Reclassifications of KPCo Pension and OPEB Regulatory Assets to AOCI |  | — |  |  | — |  |  | (11.4) |  |  | (11.4) |
Income Tax (Expense) Benefit |  | — |  |  | — |  |  | (2.4) |  |  | (2.4) |
Reclassifications of KPCo Pension and OPEB Regulatory Assets to AOCI, Net of Income Tax (Expense) Benefit |  | — |  |  | — |  |  | (9.0) |  |  | (9.0) |
Net Current Period Other Comprehensive Income (Loss) |  | 288.4 |  |  | 18.7 |  |  | (17.0) |  |  | 290.1 |
Balance in AOCI as of September 30, 2022 |  | $ | 452.1 |  |  | $ | (2.6) |  |  | $ | 25.4 |  |  | $ | 474.9 |
(a)Amounts reclassified to the referenced line item on the statements of income.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481694/830-30-45-20 + Details
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