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Comprehensive Income
9 Months Ended
Sep. 30, 2020
Comprehensive Income COMPREHENSIVE INCOME
The disclosures in this note apply to all Registrants except AEPTCo unless indicated otherwise.

Presentation of Comprehensive Income

The following tables provide the components of changes in AOCI and details of reclassifications from AOCI.  The amortization of pension and OPEB AOCI components are included in the computation of net periodic pension and OPEB costs. See Note 7 - Benefit Plans for additional details.

AEP
 Cash Flow HedgesPension 
Three Months Ended September 30, 2020CommodityInterest Rateand OPEBTotal
 (in millions)
Balance in AOCI as of June 30, 2020$(81.4)$(55.3)$(36.2)$(172.9)
Change in Fair Value Recognized in AOCI10.2 1.9 (a)— 12.1 
Amount of (Gain) Loss Reclassified from AOCI
Generation & Marketing Revenues (b)(0.1)— — (0.1)
Purchased Electricity for Resale (b)
33.3 — — 33.3 
Interest Expense (b)
— 1.3 — 1.3 
Amortization of Prior Service Cost (Credit)— — (4.9)(4.9)
Amortization of Actuarial (Gains) Losses— — 2.6 2.6 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
33.2 1.3 (2.3)32.2 
Income Tax (Expense) Benefit7.1 0.2 (0.5)6.8 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
26.1 1.1 (1.8)25.4 
Net Current Period Other Comprehensive Income (Loss)
36.3 3.0 (1.8)37.5 
Balance in AOCI as of September 30, 2020$(45.1)$(52.3)$(38.0)$(135.4)
 Cash Flow HedgesPension 
Three Months Ended September 30, 2019CommodityInterest Rateand OPEBTotal
 (in millions)
Balance in AOCI as of June 30, 2019$(127.2)$(15.9)$(87.6)$(230.7)
Change in Fair Value Recognized in AOCI38.4 (0.8)(c)— 37.6 
Amount of (Gain) Loss Reclassified from AOCI
Generation & Marketing Revenues (b)(0.1)— — (0.1)
Purchased Electricity for Resale (b)
8.5 — — 8.5 
Amortization of Prior Service Cost (Credit)
— — (4.8)(4.8)
Amortization of Actuarial (Gains) Losses
— — 3.0 3.0 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
8.4 — (1.8)6.6 
Income Tax (Expense) Benefit1.8 — (0.4)1.4 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
6.6 — (1.4)5.2 
Net Current Period Other Comprehensive Income (Loss)
45.0 (0.8)(1.4)42.8 
Balance in AOCI as of September 30, 2019$(82.2)$(16.7)$(89.0)$(187.9)
AEP
 Cash Flow HedgesPension 
Nine Months Ended September 30, 2020CommodityInterest Rateand OPEBTotal
 (in millions)
Balance in AOCI as of December 31, 2019$(103.5)$(11.5)$(32.7)$(147.7)
Change in Fair Value Recognized in AOCI(48.6)(43.6)(a)— (92.2)
Amount of (Gain) Loss Reclassified from AOCI
Generation & Marketing Revenues (b)(0.3)— — (0.3)
Purchased Electricity for Resale (b)
135.7 — — 135.7 
Interest Expense (b)
— 3.6 — 3.6 
Amortization of Prior Service Cost (Credit)— — (14.4)(14.4)
Amortization of Actuarial (Gains) Losses— — 7.7 7.7 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
135.4 3.6 (6.7)132.3 
Income Tax (Expense) Benefit28.4 0.8 (1.4)27.8 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
107.0 2.8 (5.3)104.5 
Net Current Period Other Comprehensive Income (Loss)
58.4 (40.8)(5.3)12.3 
Balance in AOCI as of September 30, 2020$(45.1)$(52.3)$(38.0)$(135.4)
 Cash Flow HedgesPension 
Nine Months Ended September 30, 2019CommodityInterest Rateand OPEBTotal
 (in millions)
Balance in AOCI as of December 31, 2018$(23.0)$(12.6)$(84.8)$(120.4)
Change in Fair Value Recognized in AOCI(92.3)(4.5)(c)— (96.8)
Amount of (Gain) Loss Reclassified from AOCI
Generation & Marketing Revenues (b)(0.1)— — (0.1)
Purchased Electricity for Resale (b)
42.0 — — 42.0 
Interest Expense (b)
— 0.5 — 0.5 
Amortization of Prior Service Cost (Credit)
— — (14.3)(14.3)
Amortization of Actuarial (Gains) Losses
— — 9.0 9.0 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
41.9 0.5 (5.3)37.1 
Income Tax (Expense) Benefit8.8 0.1 (1.1)7.8 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
33.1 0.4 (4.2)29.3 
Net Current Period Other Comprehensive Income (Loss)
(59.2)(4.1)(4.2)(67.5)
Balance in AOCI as of September 30, 2019$(82.2)$(16.7)$(89.0)$(187.9)
AEP Texas
Cash Flow Hedge –Pension
Three Months Ended September 30, 2020Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of June 30, 2020$(2.9)$(9.3)$(12.2)
Change in Fair Value Recognized in AOCI
— — — 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)0.4 — 0.4 
Amortization of Prior Service Cost (Credit)— (0.1)(0.1)
Amortization of Actuarial (Gains) Losses— 0.1 0.1 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
0.4 — 0.4 
Income Tax (Expense) Benefit0.1 — 0.1 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
0.3 — 0.3 
Net Current Period Other Comprehensive Income (Loss)0.3 — 0.3 
Balance in AOCI as of September 30, 2020$(2.6)$(9.3)$(11.9)
Cash Flow Hedge –Pension
Three Months Ended September 30, 2019Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of June 30, 2019$(3.9)$(10.6)$(14.5)
Change in Fair Value Recognized in AOCI
0.3 — 0.3 
Amount of (Gain) Loss Reclassified from AOCI
Amortization of Prior Service Cost (Credit)— (0.1)(0.1)
Amortization of Actuarial (Gains) Losses— 0.1 0.1 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
— — — 
Income Tax (Expense) Benefit— — — 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
— — — 
Net Current Period Other Comprehensive Income (Loss)0.3 — 0.3 
Balance in AOCI as of September 30, 2019$(3.6)$(10.6)$(14.2)
Cash Flow Hedge –Pension
Nine Months Ended September 30, 2020Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of December 31, 2019$(3.4)$(9.4)$(12.8)
Change in Fair Value Recognized in AOCI
— — — 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)1.0 — 1.0 
Amortization of Prior Service Cost (Credit)— (0.1)(0.1)
Amortization of Actuarial (Gains) Losses— 0.2 0.2 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
1.0 0.1 1.1 
Income Tax (Expense) Benefit0.2 — 0.2 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
0.8 0.1 0.9 
Net Current Period Other Comprehensive Income (Loss)0.8 0.1 0.9 
Balance in AOCI as of September 30, 2020$(2.6)$(9.3)$(11.9)
Cash Flow Hedge –Pension
Nine Months Ended September 30, 2019Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of December 31, 2018$(4.4)$(10.7)$(15.1)
Change in Fair Value Recognized in AOCI
0.3 — 0.3 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)0.6 — 0.6 
Amortization of Prior Service Cost (Credit)— (0.1)(0.1)
Amortization of Actuarial (Gains) Losses— 0.2 0.2 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
0.6 0.1 0.7 
Income Tax (Expense) Benefit0.1 — 0.1 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
0.5 0.1 0.6 
Net Current Period Other Comprehensive Income (Loss)0.8 0.1 0.9 
Balance in AOCI as of September 30, 2019$(3.6)$(10.6)$(14.2)
APCo
Cash Flow Hedge –Pension
Three Months Ended September 30, 2020Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of June 30, 2020$(4.1)$2.2 $(1.9)
Change in Fair Value Recognized in AOCI
0.7 — 0.7 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)(0.2)— (0.2)
Amortization of Prior Service Cost (Credit)— (1.3)(1.3)
Amortization of Actuarial (Gains) Losses— 0.1 0.1 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
(0.2)(1.2)(1.4)
Income Tax (Expense) Benefit(0.1)(0.3)(0.4)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
(0.1)(0.9)(1.0)
Net Current Period Other Comprehensive Income (Loss)
0.6 (0.9)(0.3)
Balance in AOCI as of September 30, 2020$(3.5)$1.3 $(2.2)
Cash Flow Hedge –Pension
Three Months Ended September 30, 2019Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of June 30, 2019$1.4 $(8.1)$(6.7)
Change in Fair Value Recognized in AOCI
(0.3)— (0.3)
Amount of (Gain) Loss Reclassified from AOCI
Amortization of Prior Service Cost (Credit)— (1.4)(1.4)
Amortization of Actuarial (Gains) Losses— 0.6 0.6 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
— (0.8)(0.8)
Income Tax (Expense) Benefit— (0.2)(0.2)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
— (0.6)(0.6)
Net Current Period Other Comprehensive Income (Loss)
(0.3)(0.6)(0.9)
Balance in AOCI as of September 30, 2019$1.1 $(8.7)$(7.6)
Cash Flow Hedge –Pension
Nine Months Ended September 30, 2020Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of December 31, 2019$0.9 $4.1 $5.0 
Change in Fair Value Recognized in AOCI
(3.8)— (3.8)
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)(0.8)— (0.8)
Amortization of Prior Service Cost (Credit)— (4.0)(4.0)
Amortization of Actuarial (Gains) Losses— 0.4 0.4 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
(0.8)(3.6)(4.4)
Income Tax (Expense) Benefit(0.2)(0.8)(1.0)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
(0.6)(2.8)(3.4)
Net Current Period Other Comprehensive Income (Loss)
(4.4)(2.8)(7.2)
Balance in AOCI as of September 30, 2020$(3.5)$1.3 $(2.2)
Cash Flow Hedge –Pension
Nine Months Ended September 30, 2019Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of December 31, 2018$1.8 $(6.8)$(5.0)
Change in Fair Value Recognized in AOCI
(0.3)— (0.3)
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)(0.5)— (0.5)
Amortization of Prior Service Cost (Credit)— (4.0)(4.0)
Amortization of Actuarial (Gains) Losses— 1.6 1.6 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
(0.5)(2.4)(2.9)
Income Tax (Expense) Benefit(0.1)(0.5)(0.6)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
(0.4)(1.9)(2.3)
Net Current Period Other Comprehensive Income (Loss)
(0.7)(1.9)(2.6)
Balance in AOCI as of September 30, 2019$1.1 $(8.7)$(7.6)
I&M
Cash Flow Hedge –Pension
Three Months Ended September 30, 2020Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of June 30, 2020$(9.1)$(1.7)$(10.8)
Change in Fair Value Recognized in AOCI
— — — 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)0.5 — 0.5 
Amortization of Prior Service Cost (Credit)— (0.3)(0.3)
Amortization of Actuarial (Gains) Losses— 0.2 0.2 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
0.5 (0.1)0.4 
Income Tax (Expense) Benefit0.1 — 0.1 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
0.4 (0.1)0.3 
Net Current Period Other Comprehensive Income (Loss)
0.4 (0.1)0.3 
Balance in AOCI as of September 30, 2020$(8.7)$(1.8)$(10.5)
Cash Flow Hedge –Pension
Three Months Ended September 30, 2019Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of June 30, 2019$(10.7)$(2.4)$(13.1)
Change in Fair Value Recognized in AOCI
0.4 — 0.4 
Amount of (Gain) Loss Reclassified from AOCI
Amortization of Prior Service Cost (Credit)— (0.2)(0.2)
Amortization of Actuarial (Gains) Losses— 0.2 0.2 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
— — — 
Income Tax (Expense) Benefit— — — 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
— — — 
Net Current Period Other Comprehensive Income (Loss)
0.4 — 0.4 
Balance in AOCI as of September 30, 2019$(10.3)$(2.4)$(12.7)
Cash Flow Hedge –Pension
Nine Months Ended September 30, 2020Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of December 31, 2019$(9.9)$(1.7)$(11.6)
Change in Fair Value Recognized in AOCI
— — — 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)1.5 — 1.5 
Amortization of Prior Service Cost (Credit)— (0.6)(0.6)
Amortization of Actuarial (Gains) Losses— 0.5 0.5 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
1.5 (0.1)1.4 
Income Tax (Expense) Benefit0.3 — 0.3 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
1.2 (0.1)1.1 
Net Current Period Other Comprehensive Income (Loss)
1.2 (0.1)1.1 
Balance in AOCI as of September 30, 2020$(8.7)$(1.8)$(10.5)
Cash Flow Hedge –Pension
Nine Months Ended September 30, 2019Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of December 31, 2018$(11.5)$(2.3)$(13.8)
Change in Fair Value Recognized in AOCI
0.4 — 0.4 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)1.0 — 1.0 
Amortization of Prior Service Cost (Credit)— (0.6)(0.6)
Amortization of Actuarial (Gains) Losses— 0.5 0.5 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
1.0 (0.1)0.9 
Income Tax (Expense) Benefit0.2 — 0.2 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
0.8 (0.1)0.7 
Net Current Period Other Comprehensive Income (Loss)
1.2 (0.1)1.1 
Balance in AOCI as of September 30, 2019$(10.3)$(2.4)$(12.7)
OPCo
Cash Flow Hedge –
Three Months Ended September 30, 2020Interest Rate
 (in millions)
Balance in AOCI as of June 30, 2020$— 
Change in Fair Value Recognized in AOCI
— 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)— 
Reclassifications from AOCI, before Income Tax (Expense) Benefit— 
Income Tax (Expense) Benefit— 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit— 
Net Current Period Other Comprehensive Income (Loss)
— 
Balance in AOCI as of September 30, 2020$— 
Cash Flow Hedge –
Three Months Ended September 30, 2019Interest Rate
 (in millions)
Balance in AOCI as of June 30, 2019$0.3 
Change in Fair Value Recognized in AOCI
(0.2)
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)(0.1)
Reclassifications from AOCI, before Income Tax (Expense) Benefit(0.1)
Income Tax (Expense) Benefit— 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit(0.1)
Net Current Period Other Comprehensive Income (Loss)
(0.3)
Balance in AOCI as of September 30, 2019$— 
Cash Flow Hedge –
Nine Months Ended September 30, 2020Interest Rate
 (in millions)
Balance in AOCI as of December 31, 2019$— 
Change in Fair Value Recognized in AOCI
— 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)— 
Reclassifications from AOCI, before Income Tax (Expense) Benefit— 
Income Tax (Expense) Benefit— 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit— 
Net Current Period Other Comprehensive Income (Loss)
— 
Balance in AOCI as of September 30, 2020$— 
Cash Flow Hedge –
Nine Months Ended September 30, 2019Interest Rate
 (in millions)
Balance in AOCI as of December 31, 2018$1.0 
Change in Fair Value Recognized in AOCI
(0.2)
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)(1.0)
Reclassifications from AOCI, before Income Tax (Expense) Benefit(1.0)
Income Tax (Expense) Benefit(0.2)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit(0.8)
Net Current Period Other Comprehensive Income (Loss)
(1.0)
Balance in AOCI as of September 30, 2019$— 
PSO
Cash Flow Hedge –
Three Months Ended September 30, 2020Interest Rate
 (in millions)
Balance in AOCI as of June 30, 2020$0.6 
Change in Fair Value Recognized in AOCI— 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)(0.3)
Reclassifications from AOCI, before Income Tax (Expense) Benefit
(0.3)
Income Tax (Expense) Benefit— 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
(0.3)
Net Current Period Other Comprehensive Income (Loss)(0.3)
Balance in AOCI as of September 30, 2020$0.3 
Cash Flow Hedge –
Three Months Ended September 30, 2019Interest Rate
 (in millions)
Balance in AOCI as of June 30, 2019$1.6 
Change in Fair Value Recognized in AOCI(0.3)
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)0.2 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
0.2 
Income Tax (Expense) Benefit0.1 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
0.1 
Net Current Period Other Comprehensive Income (Loss)(0.2)
Balance in AOCI as of September 30, 2019$1.4 
Cash Flow Hedge –
Nine Months Ended September 30, 2020Interest Rate
 (in millions)
Balance in AOCI as of December 31, 2019$1.1 
Change in Fair Value Recognized in AOCI— 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)(1.0)
Reclassifications from AOCI, before Income Tax (Expense) Benefit
(1.0)
Income Tax (Expense) Benefit(0.2)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
(0.8)
Net Current Period Other Comprehensive Income (Loss)(0.8)
Balance in AOCI as of September 30, 2020$0.3 
Cash Flow Hedge –
Nine Months Ended September 30, 2019Interest Rate
 (in millions)
Balance in AOCI as of December 31, 2018$2.1 
Change in Fair Value Recognized in AOCI(0.3)
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)(0.5)
Reclassifications from AOCI, before Income Tax (Expense) Benefit
(0.5)
Income Tax (Expense) Benefit(0.1)
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
(0.4)
Net Current Period Other Comprehensive Income (Loss)(0.7)
Balance in AOCI as of September 30, 2019$1.4 
SWEPCo
Cash Flow Hedge –Pension
Three Months Ended September 30, 2020Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of June 30, 2020$(1.1)$(0.2)$(1.3)
Change in Fair Value Recognized in AOCI
— — — 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)0.5 — 0.5 
Amortization of Prior Service Cost (Credit)— (0.5)(0.5)
Amortization of Actuarial (Gains) Losses— — — 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
0.5 (0.5)— 
Income Tax (Expense) Benefit0.1 (0.1)— 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
0.4 (0.4)— 
Net Current Period Other Comprehensive Income (Loss)
0.4 (0.4)— 
Balance in AOCI as of September 30, 2020$(0.7)$(0.6)$(1.3)
Cash Flow Hedge –Pension
Three Months Ended September 30, 2019Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of June 30, 2019$(2.5)$(2.7)$(5.2)
Change in Fair Value Recognized in AOCI
0.3 — 0.3 
Amount of (Gain) Loss Reclassified from AOCI
Amortization of Prior Service Cost (Credit)— (0.5)(0.5)
Amortization of Actuarial (Gains) Losses— 0.2 0.2 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
— (0.3)(0.3)
Income Tax (Expense) Benefit— — — 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
— (0.3)(0.3)
Net Current Period Other Comprehensive Income (Loss)
0.3 (0.3)— 
Balance in AOCI as of September 30, 2019$(2.2)$(3.0)$(5.2)
SWEPCo
Cash Flow Hedge –Pension
Nine Months Ended September 30, 2020Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of December 31, 2019$(1.8)$0.5 $(1.3)
Change in Fair Value Recognized in AOCI
— — — 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)1.4 — 1.4 
Amortization of Prior Service Cost (Credit)— (1.5)(1.5)
Amortization of Actuarial (Gains) Losses— 0.1 0.1 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
1.4 (1.4)— 
Income Tax (Expense) Benefit0.3 (0.3)— 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
1.1 (1.1)— 
Net Current Period Other Comprehensive Income (Loss)
1.1 (1.1)— 
Balance in AOCI as of September 30, 2020$(0.7)$(0.6)$(1.3)
Cash Flow Hedge –Pension
Nine Months Ended September 30, 2019
Interest Rateand OPEBTotal
(in millions)
Balance in AOCI as of December 31, 2018$(3.3)$(2.1)$(5.4)
Change in Fair Value Recognized in AOCI
0.3 — 0.3 
Amount of (Gain) Loss Reclassified from AOCI
Interest Expense (b)1.0 — 1.0 
Amortization of Prior Service Cost (Credit)— (1.5)(1.5)
Amortization of Actuarial (Gains) Losses— 0.4 0.4 
Reclassifications from AOCI, before Income Tax (Expense) Benefit
1.0 (1.1)(0.1)
Income Tax (Expense) Benefit0.2 (0.2)— 
Reclassifications from AOCI, Net of Income Tax (Expense) Benefit
0.8 (0.9)(0.1)
Net Current Period Other Comprehensive Income (Loss)
1.1 (0.9)0.2 
Balance in AOCI as of September 30, 2019$(2.2)$(3.0)$(5.2)

(a)The change in fair value includes $(1) million and $6 million related to AEP's investment in joint venture wind farms acquired as part of the purchase of Sempra Renewables LLC for the three and nine months ended September 30, 2020, respectively.
(b)Amounts reclassified to the referenced line item on the statements of income.
(c)The change in fair value includes $2 million and $6 million related to AEP’s investment in joint venture wind farms acquired as part of the purchase of Sempra Renewables LLC for the three and nine months ended September 30, 2019, respectively.