XML 44 R38.htm IDEA: XBRL DOCUMENT v3.20.1
Comprehensive Income (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI $ (147.7) $ (120.4)
Change in Fair Value Recognized in AOCI (108.0) (38.8)
Commodity    
Generation & Marketing Revenues 3,747.5 4,056.8
Interest Rate    
Interest Expense 292.1 255.8
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 49.6 10.7
Income Tax (Expense) Benefit 46.5 44.5
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 39.2 8.5
Net Current Period Other Comprehensive Income (Loss) (68.8) (30.3)
Ending Balance in AOCI (216.5) (150.7)
Pension and OPEB [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (32.7) (84.8)
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit (2.3) (1.8)
Reclassification from AOCI, Net of Income Tax (Expense) Benefit (1.8) (1.4)
Net Current Period Other Comprehensive Income (Loss) (1.8) (1.4)
Ending Balance in AOCI (34.5) (86.2)
Accumulated Other Comprehensive Income [Member]    
Amortization Of Pension And Other Postretirement Benefit Plans    
Net Current Period Other Comprehensive Income (Loss) (68.8) (30.3)
Commodity [Member] | Cash Flow Hedges [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (103.5) (23.0)
Change in Fair Value Recognized in AOCI (65.3) (38.8)
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 51.0 12.3
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 40.3 9.7
Net Current Period Other Comprehensive Income (Loss) (25.0) (29.1)
Ending Balance in AOCI (128.5) (52.1)
Interest Rate [Member] | Cash Flow Hedges [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (11.5) (12.6)
Change in Fair Value Recognized in AOCI (42.7) [1] 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.9 0.2
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.7 0.2
Net Current Period Other Comprehensive Income (Loss) (42.0) 0.2
Ending Balance in AOCI (53.5) (12.4)
Generation and Marketing Revenues [Member]    
Commodity    
Generation & Marketing Revenues 408.4 439.7
Purchased Electricity for Resale [Member]    
Commodity    
Purchased Electricity for Resale 795.7 861.8
Reclassifications from Accumulated Other Comprehensive Income [Member]    
Interest Rate    
Interest Expense [2] 0.9 0.2
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) (4.9) (4.8)
Amortization of Actuarial (Gains) Losses 2.6 3.0
Income Tax (Expense) Benefit 10.4 2.2
Reclassifications from Accumulated Other Comprehensive Income [Member] | Pension and OPEB [Member]    
Interest Rate    
Interest Expense [2] 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) (4.9) (4.8)
Amortization of Actuarial (Gains) Losses 2.6 3.0
Income Tax (Expense) Benefit (0.5) (0.4)
Reclassifications from Accumulated Other Comprehensive Income [Member] | Commodity [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense [2] 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) 0.0 0.0
Amortization of Actuarial (Gains) Losses 0.0 0.0
Income Tax (Expense) Benefit 10.7 2.6
Reclassifications from Accumulated Other Comprehensive Income [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense [2] 0.9 0.2
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) 0.0 0.0
Amortization of Actuarial (Gains) Losses 0.0 0.0
Income Tax (Expense) Benefit 0.2 0.0
Reclassifications from Accumulated Other Comprehensive Income [Member] | Generation and Marketing Revenues [Member]    
Commodity    
Generation & Marketing Revenues [1] (0.1)  
Reclassifications from Accumulated Other Comprehensive Income [Member] | Generation and Marketing Revenues [Member] | Pension and OPEB [Member]    
Commodity    
Generation & Marketing Revenues [1] 0.0  
Reclassifications from Accumulated Other Comprehensive Income [Member] | Generation and Marketing Revenues [Member] | Commodity [Member] | Cash Flow Hedges [Member]    
Commodity    
Generation & Marketing Revenues [1] (0.1)  
Reclassifications from Accumulated Other Comprehensive Income [Member] | Generation and Marketing Revenues [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Commodity    
Generation & Marketing Revenues [1] 0.0  
Reclassifications from Accumulated Other Comprehensive Income [Member] | Purchased Electricity for Resale [Member]    
Commodity    
Purchased Electricity for Resale [2] 51.1 12.3
Reclassifications from Accumulated Other Comprehensive Income [Member] | Purchased Electricity for Resale [Member] | Pension and OPEB [Member]    
Commodity    
Purchased Electricity for Resale [2] 0.0 0.0
Reclassifications from Accumulated Other Comprehensive Income [Member] | Purchased Electricity for Resale [Member] | Commodity [Member] | Cash Flow Hedges [Member]    
Commodity    
Purchased Electricity for Resale [2] 51.1 12.3
Reclassifications from Accumulated Other Comprehensive Income [Member] | Purchased Electricity for Resale [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Commodity    
Purchased Electricity for Resale [2] 0.0 0.0
Apple Blossom and Black Oak [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense 5.0  
AEP Texas Inc. [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (12.8) (15.1)
Change in Fair Value Recognized in AOCI 0.0 0.0
Interest Rate    
Interest Expense 42.5 37.4
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.4 0.4
Income Tax (Expense) Benefit 7.4 4.0
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.3 0.3
Net Current Period Other Comprehensive Income (Loss) 0.3 0.3
Ending Balance in AOCI (12.5) (14.8)
AEP Texas Inc. [Member] | Pension and OPEB [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (9.4) (10.7)
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.0 0.0
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.0 0.0
Net Current Period Other Comprehensive Income (Loss) 0.0 0.0
Ending Balance in AOCI (9.4) (10.7)
AEP Texas Inc. [Member] | Accumulated Other Comprehensive Income [Member]    
Amortization Of Pension And Other Postretirement Benefit Plans    
Net Current Period Other Comprehensive Income (Loss) 0.3 0.3
AEP Texas Inc. [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (3.4) (4.4)
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.4 0.4
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.3 0.3
Net Current Period Other Comprehensive Income (Loss) 0.3 0.3
Ending Balance in AOCI (3.1) (4.1)
AEP Texas Inc. [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member]    
Interest Rate    
Interest Expense [2] 0.4 0.4
Amortization Of Pension And Other Postretirement Benefit Plans    
Income Tax (Expense) Benefit 0.1 0.1
AEP Texas Inc. [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Pension and OPEB [Member]    
Interest Rate    
Interest Expense [2] 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Income Tax (Expense) Benefit 0.0 0.0
AEP Texas Inc. [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense [2] 0.4 0.4
Amortization Of Pension And Other Postretirement Benefit Plans    
Income Tax (Expense) Benefit 0.1 0.1
Appalachian Power Co [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI 5.0 (5.0)
Change in Fair Value Recognized in AOCI (3.9) 0.0
Interest Rate    
Interest Expense 53.1 49.3
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit (1.6) (1.1)
Income Tax (Expense) Benefit 10.4 (24.1)
Reclassification from AOCI, Net of Income Tax (Expense) Benefit (1.2) (0.8)
Net Current Period Other Comprehensive Income (Loss) (5.1) (0.8)
Ending Balance in AOCI (0.1) (5.8)
Appalachian Power Co [Member] | Pension and OPEB [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI 4.1 (6.8)
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit (1.2) (0.8)
Reclassification from AOCI, Net of Income Tax (Expense) Benefit (0.9) (0.6)
Net Current Period Other Comprehensive Income (Loss) (0.9) (0.6)
Ending Balance in AOCI 3.2 (7.4)
Appalachian Power Co [Member] | Accumulated Other Comprehensive Income [Member]    
Amortization Of Pension And Other Postretirement Benefit Plans    
Net Current Period Other Comprehensive Income (Loss) (5.1) (0.8)
Appalachian Power Co [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI 0.9 1.8
Change in Fair Value Recognized in AOCI (3.9) 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit (0.4) (0.3)
Reclassification from AOCI, Net of Income Tax (Expense) Benefit (0.3) (0.2)
Net Current Period Other Comprehensive Income (Loss) (4.2) (0.2)
Ending Balance in AOCI (3.3) 1.6
Appalachian Power Co [Member] | Purchased Electricity for Resale [Member]    
Commodity    
Purchased Electricity for Resale 122.6 110.6
Appalachian Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member]    
Interest Rate    
Interest Expense [2] (0.4) (0.3)
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) (1.3) (1.3)
Amortization of Actuarial (Gains) Losses 0.1 0.5
Income Tax (Expense) Benefit (0.4) (0.3)
Appalachian Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Pension and OPEB [Member]    
Interest Rate    
Interest Expense [2] 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) (1.3) (1.3)
Amortization of Actuarial (Gains) Losses 0.1 0.5
Income Tax (Expense) Benefit (0.3) (0.2)
Appalachian Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense [2] (0.4) (0.3)
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) 0.0 0.0
Amortization of Actuarial (Gains) Losses 0.0 0.0
Income Tax (Expense) Benefit (0.1) (0.1)
Indiana Michigan Power Co [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (11.6) (13.8)
Change in Fair Value Recognized in AOCI 0.0 0.0
Interest Rate    
Interest Expense 30.7 28.9
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.5 0.5
Income Tax (Expense) Benefit 0.4 (2.7)
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.4 0.4
Net Current Period Other Comprehensive Income (Loss) 0.4 0.4
Ending Balance in AOCI (11.2) (13.4)
Indiana Michigan Power Co [Member] | Pension and OPEB [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (1.7) (2.3)
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.0 0.0
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.0 0.0
Net Current Period Other Comprehensive Income (Loss) 0.0 0.0
Ending Balance in AOCI (1.7) (2.3)
Indiana Michigan Power Co [Member] | Accumulated Other Comprehensive Income [Member]    
Amortization Of Pension And Other Postretirement Benefit Plans    
Net Current Period Other Comprehensive Income (Loss) 0.4 0.4
Indiana Michigan Power Co [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (9.9) (11.5)
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.5 0.5
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.4 0.4
Net Current Period Other Comprehensive Income (Loss) 0.4 0.4
Ending Balance in AOCI (9.5) (11.1)
Indiana Michigan Power Co [Member] | Purchased Electricity for Resale [Member]    
Commodity    
Purchased Electricity for Resale 50.1 69.6
Indiana Michigan Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member]    
Interest Rate    
Interest Expense [2] 0.5 0.5
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) (0.2) (0.2)
Amortization of Actuarial (Gains) Losses 0.2 0.2
Income Tax (Expense) Benefit 0.1 0.1
Indiana Michigan Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Pension and OPEB [Member]    
Interest Rate    
Interest Expense [2] 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) (0.2) (0.2)
Amortization of Actuarial (Gains) Losses 0.2 0.2
Income Tax (Expense) Benefit 0.0 0.0
Indiana Michigan Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense [2] 0.5 0.5
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) 0.0 0.0
Amortization of Actuarial (Gains) Losses 0.0 0.0
Income Tax (Expense) Benefit 0.1 0.1
Ohio Power Co [Member]    
Interest Rate    
Interest Expense 28.9 24.6
Amortization Of Pension And Other Postretirement Benefit Plans    
Income Tax (Expense) Benefit 9.7 19.8
Net Current Period Other Comprehensive Income (Loss)   (0.3)
Ohio Power Co [Member] | Accumulated Other Comprehensive Income [Member]    
Amortization Of Pension And Other Postretirement Benefit Plans    
Net Current Period Other Comprehensive Income (Loss)   (0.3)
Ohio Power Co [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI 0.0 1.0
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.0 (0.4)
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.0 (0.3)
Net Current Period Other Comprehensive Income (Loss) 0.0 (0.3)
Ending Balance in AOCI 0.0 0.7
Ohio Power Co [Member] | Purchased Electricity for Resale [Member]    
Commodity    
Purchased Electricity for Resale 149.1 174.2
Ohio Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense [2] 0.0 (0.4)
Amortization Of Pension And Other Postretirement Benefit Plans    
Income Tax (Expense) Benefit 0.0 (0.1)
Public Service Co Of Oklahoma [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI 1.1  
Interest Rate    
Interest Expense 15.8 16.9
Amortization Of Pension And Other Postretirement Benefit Plans    
Income Tax (Expense) Benefit 0.1 0.0
Net Current Period Other Comprehensive Income (Loss) (0.2) (0.2)
Ending Balance in AOCI 0.9  
Public Service Co Of Oklahoma [Member] | Accumulated Other Comprehensive Income [Member]    
Amortization Of Pension And Other Postretirement Benefit Plans    
Net Current Period Other Comprehensive Income (Loss) (0.2) (0.2)
Public Service Co Of Oklahoma [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI 1.1 2.1
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit (0.3) (0.3)
Reclassification from AOCI, Net of Income Tax (Expense) Benefit (0.2) (0.2)
Net Current Period Other Comprehensive Income (Loss) (0.2) (0.2)
Ending Balance in AOCI 0.9 1.9
Public Service Co Of Oklahoma [Member] | Purchased Electricity for Resale [Member]    
Commodity    
Purchased Electricity for Resale 110.4 122.9
Public Service Co Of Oklahoma [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense [2] (0.3) (0.3)
Amortization Of Pension And Other Postretirement Benefit Plans    
Income Tax (Expense) Benefit (0.1) (0.1)
Southwestern Electric Power Co [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (1.3) (5.4)
Change in Fair Value Recognized in AOCI 0.0 0.0
Interest Rate    
Interest Expense 30.1 29.7
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.0 0.1
Income Tax (Expense) Benefit (6.2) 0.7
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.0 0.1
Net Current Period Other Comprehensive Income (Loss) 0.0 0.1
Ending Balance in AOCI (1.3) (5.3)
Southwestern Electric Power Co [Member] | Pension and OPEB [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI 0.5 (2.1)
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit (0.5) (0.4)
Reclassification from AOCI, Net of Income Tax (Expense) Benefit (0.4) (0.3)
Net Current Period Other Comprehensive Income (Loss) (0.4) (0.3)
Ending Balance in AOCI 0.1 (2.4)
Southwestern Electric Power Co [Member] | Accumulated Other Comprehensive Income [Member]    
Amortization Of Pension And Other Postretirement Benefit Plans    
Net Current Period Other Comprehensive Income (Loss)   0.1
Southwestern Electric Power Co [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Changes in Accumulated Other Comprehensive Income (Loss) by Component    
Beginning Balance in AOCI (1.8) (3.3)
Change in Fair Value Recognized in AOCI 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Reclassification from AOCI, before Income Tax (Expense) Benefit 0.5 0.5
Reclassification from AOCI, Net of Income Tax (Expense) Benefit 0.4 0.4
Net Current Period Other Comprehensive Income (Loss) 0.4 0.4
Ending Balance in AOCI (1.4) (2.9)
Southwestern Electric Power Co [Member] | Purchased Electricity for Resale [Member]    
Commodity    
Purchased Electricity for Resale 43.1 32.6
Southwestern Electric Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member]    
Interest Rate    
Interest Expense [2] 0.5 0.5
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) (0.5) (0.5)
Amortization of Actuarial (Gains) Losses   0.1
Income Tax (Expense) Benefit 0.0 0.0
Southwestern Electric Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Pension and OPEB [Member]    
Interest Rate    
Interest Expense [2] 0.0 0.0
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) (0.5) (0.5)
Amortization of Actuarial (Gains) Losses   0.1
Income Tax (Expense) Benefit (0.1) (0.1)
Southwestern Electric Power Co [Member] | Reclassifications from Accumulated Other Comprehensive Income [Member] | Interest Rate [Member] | Cash Flow Hedges [Member]    
Interest Rate    
Interest Expense [2] 0.5 0.5
Amortization Of Pension And Other Postretirement Benefit Plans    
Amortization of Prior Service Cost (Credit) 0.0 0.0
Amortization of Actuarial (Gains) Losses   0.0
Income Tax (Expense) Benefit $ 0.1 $ 0.1
[1]
(a)
The change in fair value includes $5 million related to AEP's investment in joint venture wind farms acquired as part of the purchase of Sempra Renewables LLC for the three months ended March 31, 2020
[2]
(b)
Amounts reclassified to the referenced line item on the statements of income.