Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Summary of Significant Accounting Policies [Line Items]

Reconciliation of Cash, Cash Equivalents and Restricted Cash from the Balance Sheet to Cash Flow

The following provides a reconciliation of Cash, Cash Equivalents and Restricted Cash reported within the Balance Sheets to the amounts shown on the Statements of Cash Flows:

	December 31, 2021		December 31, 2020
Cash and cash equivalents	$	3,571	$	442
Restricted cash - current	1		1
Total Cash, Cash Equivalents and Restricted Cash	$	3,572	$	443

Capitalized Interest Table Text Block

Capitalized interest, including the debt component of AFUDC, for the years ended December 31 is as follows:

	2021		2020		2019
PPL	$	6	$	7	$	9
PPL Electric	6		7		8

Weighted-average Rates of Depreciation

Following are the weighted-average annual rates of depreciation, for regulated utility plant, for the years ended December 31:

	2021		2020		2019
PPL	3.61	%	3.53	%	3.54	%
PPL Electric	3.05	%	2.99	%	3.05	%
LG&E	3.99	%	4.00	%	3.87	%
KU	4.17	%	4.00	%	4.02	%

Schedule of Utility Inventory

"Fuel, materials and supplies" on the Balance Sheets consisted of the following at December 31:

	2021
	PPL		PPL Electric		LG&E		KU
Fuel	$	90	$	—	$	32	$	58
Natural gas stored underground	54		—		54		—
Materials and supplies	178		61		51		66
Total	$	322	$	61	$	137	$	124

	2020
	PPL		PPL Electric		LG&E		KU
Fuel	$	95	$	—	$	38	$	57
Natural gas stored underground	30		—		30		—
Materials and supplies	177		59		51		66
Total	$	302	$	59	$	119	$	123

Schedule of Valuation and Qualifying Accounts Disclosure

The changes in the allowance for doubtful accounts are included in the following table. Amounts relate to financing receivables, except as noted.

				Additions
	Balance at Beginning of Period			Charged to Income		Charged to Other Accounts		Deductions (b)		Balance at End of Period
PPL
2021	$	73		$	26	$	—	$	30	$	69	(d)
2020 (a)	58		(a)	28		—		13		73		(d)
2019	54			34		3		35		56
PPL Electric
2021	$	41		$	13	$	—	$	19	$	35	(c)
2020	30		(a)	19		—		8		41		(c)
2019	27			26		—		25		28
LG&E
2021	$	3		$	4	$	—	$	4	$	3
2020	1			4		—		2		3
2019	1			2		2		4		1
KU
2021	$	2		$	8	$	—	$	7	$	3
2020	1			4		—		3		2
2019	2			4		1		6		1

(a)Adjusted for $2 million cumulative-effect adjustment upon adoption of current expected credit loss guidance.

(b)Primarily related to uncollectible accounts written off.

(c)Includes $3 million related to other accounts receivables at December 31, 2021 and 2020.

(d)Includes $32 million and $30 million related to other accounts receivables at December 31, 2021 and 2020.

PPL Electric Utilities Corp [Member]

Summary of Significant Accounting Policies [Line Items]

Capitalized Interest Table Text Block

Capitalized interest, including the debt component of AFUDC, for the years ended December 31 is as follows:

	2021		2020		2019
PPL	$	6	$	7	$	9
PPL Electric	6		7		8

Intercompany tax receivables (payables)

At December 31, the following intercompany tax receivables (payables) were recorded:

	2021		2020
PPL Electric	$	(4)	$	(9)
LG&E	4		(1)
KU	1		(5)

Louisville Gas And Electric Co [Member]

Summary of Significant Accounting Policies [Line Items]

Intercompany tax receivables (payables)

At December 31, the following intercompany tax receivables (payables) were recorded:

	2021		2020
PPL Electric	$	(4)	$	(9)
LG&E	4		(1)
KU	1		(5)

Kentucky Utilities Co [Member]

Summary of Significant Accounting Policies [Line Items]

Intercompany tax receivables (payables)

At December 31, the following intercompany tax receivables (payables) were recorded:

	2021		2020
PPL Electric	$	(4)	$	(9)
LG&E	4		(1)
KU	1		(5)