Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Reconciliation of Cash, Cash Equivalents and Restricted Cash

	December 31, 2020
	AEP		AEP Texas		APCo
	(in millions)
Cash and Cash Equivalents	$	392.7	$	0.1	$	5.8
Restricted Cash	45.6		28.7		16.9
Total Cash, Cash Equivalents and Restricted Cash	$	438.3	$	28.8	$	22.7

	December 31, 2019
	AEP		AEP Texas		APCo
	(in millions)
Cash and Cash Equivalents	$	246.8	$	3.1	$	3.3
Restricted Cash	185.8		154.7		23.5
Total Cash, Cash Equivalents and Restricted Cash	$	432.6	$	157.8	$	26.8

Significant Customers

Significant Customers of AEP Texas:
Reliant Energy, Direct Energy and TXU Energy (a)	2020		2019		2018
Percentage of Total Revenues	46	%	48	%	45	%
Percentage of Accounts Receivable – Customers	40	%	43	%	35	%

(a)In January 2021, NRG Energy, parent company of Reliant Energy, completed a deal to purchase Direct Energy from Centrica.

Significant Customers of AEPTCo:
AEP Subsidiaries	2020		2019		2018
Percentage of Total Revenues	78	%	79	%	77	%
Percentage of Total Accounts Receivable	78	%	78	%	84	%

Target Asset Allocations

Pension Plan Assets	Target
Equity	25	%
Fixed Income	59	%
Other Investments	15	%
Cash and Cash Equivalents	1	%
OPEB Plans Assets	Target
Equity	49	%
Fixed Income	49	%
Cash and Cash Equivalents	2	%

Basic and Diluted EPS Calculations

	Years Ended December 31,
	2020				2019				2018
	(in millions, except per-share data)
			$/share				$/share				$/share
Earnings Attributable to AEP Common Shareholders	$	2,200.1			$	1,921.1			$	1,923.8
Weighted-Average Number of Basic AEP Common Shares Outstanding	495.7		$	4.44	493.7		$	3.89	492.8		$	3.90
Weighted-Average Dilutive Effect of Stock-Based Awards	1.5		(0.02)		1.6		(0.01)		1.0		—
Weighted-Average Number of Diluted AEP Common Shares Outstanding	497.2		$	4.42	495.3		$	3.88	493.8		$	3.90

Supplementary Information

2020
Depreciation and Amortization	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Depreciation and Amortization of Property, Plant and Equipment	$	2,487.5	$	364.2	$	249.0	$	507.8	$	393.3	$	275.0	$	171.9	$	271.2
Amortization of Certain Securitized Assets	171.3		171.3		—		—		—		—		—		—
Amortization of Regulatory Assets and Liabilities	24.0		(5.7)		—		(0.3)		18.3		1.6		1.6		1.5
Total Depreciation and Amortization	$	2,682.8	$	529.8	$	249.0	$	507.5	$	411.6	$	276.6	$	173.5	$	272.7

2019
Depreciation and Amortization	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Depreciation and Amortization of Property, Plant and Equipment	$	2,203.7	$	365.9	$	176.0	$	466.5	$	330.6	$	229.4	$	162.5	$	247.9
Amortization of Certain Securitized Assets	280.7		258.7		—		—		—		22.0		—		—
Amortization of Regulatory Assets and Liabilities	30.1		(2.3)		—		0.3		20.0		(10.5)		7.0		1.2
Total Depreciation and Amortization	$	2,514.5	$	622.3	$	176.0	$	466.8	$	350.6	$	240.9	$	169.5	$	249.1

2018
Depreciation and Amortization	AEP		AEP Texas		AEPTCo		APCo		I&M		OPCo		PSO		SWEPCo
	(in millions)
Depreciation and Amortization of Property, Plant and Equipment	$	1,965.0	$	262.2	$	133.9	$	428.1	$	278.9	$	232.6	$	155.5	$	237.0
Amortization of Certain Securitized Assets	287.9		240.0		—		—		—		47.9		—		—
Amortization of Regulatory Assets and Liabilities	33.7		(2.6)		—		0.3		14.2		(20.8)		8.5		2.5
Total Depreciation and Amortization	$	2,286.6	$	499.6	$	133.9	$	428.4	$	293.1	$	259.7	$	164.0	$	239.5

	Years Ended December 31,
Cash Flow Information	2020		2019		2018
	(in millions)
Cash Paid (Received) for:
Interest, Net of Capitalized Amounts	$	1,029.1	$	1,022.5	$	939.3
Income Taxes	(49.1)		6.1		(24.7)
Noncash Investing and Financing Activities:
Acquisitions Under Finance Leases	44.2		87.5		55.6
Construction Expenditures Included in Current Liabilities as of December 31,	975.4		1,341.1		1,120.4
Construction Expenditures Included in Noncurrent Liabilities as of December 31,	5.5		—		—
Acquisition of Nuclear Fuel Included in Current Liabilities as of December 31,	33.4		0.1		4.0
Noncash Contribution of Assets by Noncontrolling Interest	—		—		84.0
Expected Reimbursement for Spent Nuclear Fuel Dry Cask Storage	2.6		0.3		2.2
Noncontrolling Interest Assumed with Sempra Renewables LLC and Santa Rita East Acquisition	—		253.4		—
Liabilities Assumed with Sempra Renewable LLC and Santa Rita East Acquisition	—		32.4		—
Forward Equity Purchase Contracts Included in Current and Noncurrent Liabilities as of December 31,	110.6		47.3		—