Leases (Tables)

12 Months Ended

Dec. 31, 2019

Leases [Line Items]

Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]

At December 31, 2019, PPL, LKE, LG&E and KU expect to receive the following fixed lease payments over the remaining term of their operating lease agreements:

	PPL		LKE		LG&E		KU
2020	$	13	$	7	$	—	$	7
2021	11		5		—		5
2022	5		—		—		—
2023	5		1		—		—
2024	3		—		—		—
Thereafter	12		—		—		—
Total	$	49	$	13	$	—	$	12
Lease income recognized for the twelve months ended December 31, 2019	$	21	$	13	$	5	$	8

Lease, Cost [Table Text Block]

The following table provides the components of lease cost for the Registrants' operating leases for the year ended December 31, 2019.

	PPL		LKE		LG&E		KU
Lease cost:
Operating lease cost	$	33	$	25	$	12	$	13
Short-term lease cost	7		2		1		1
Total lease cost	$	40	$	27	$	13	$	14

The following table provides other key information related to the Registrants' operating leases at December 31, 2019.

	PPL		LKE		LG&E		KU
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	29	$	21	$	9	$	11
Right-of-use asset obtained in exchange for new operating lease liabilities	46		16		5		11

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

The following table provides the total future minimum rental payments for operating leases, as well as a reconciliation of these undiscounted cash flows to the lease liabilities recognized on the Balance Sheets as of December 31, 2019.

	PPL			LKE			LG&E			KU
2020	$	29		$	18		$	7		$	11
2021	22			13			5			8
2022	17			9			4			5
2023	15			7			3			4
2024	12			6			2			4
Thereafter	27			8			3			4
Total	$	122		$	61		$	24		$	36
Weighted-average discount rate	3.48		%	3.96		%	3.89		%	4.01		%
Weighted-average remaining lease term (in years)	8			5			5			5
Current lease liabilities (a)	$	26		$	16		$	6		$	10
Non-current lease liabilities (a)	78			39			15			23
Right-of-use assets (b)	96			47			18			28

(a) Current lease liabilities are included in "Other Current Liabilities" on the Balance Sheets. Non-current lease liabilities are included in "Other deferred credits and noncurrent liabilities" on the Balance Sheets. The difference between the total future minimum lease payments and the recorded lease liabilities is due to the impact of discounting.

(b) Right-of-use assets are included in "Other noncurrent assets" on the Balance Sheets.

At December 31, 2018, the total future minimum rental payments for all operating leases were estimated to be:

	PPL		LKE		LG&E		KU
2019	$	26	$	20	$	10	$	10
2020	21		15		6		9
2021	15		11		4		7
2022	13		7		3		4
2023	8		6		3		3
Thereafter	33		11		4		6
Total	$	116	$	70	$	30	$	39

LG And E And KU Energy LLC [Member]

Leases [Line Items]

Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]

At December 31, 2019, PPL, LKE, LG&E and KU expect to receive the following fixed lease payments over the remaining term of their operating lease agreements:

	PPL		LKE		LG&E		KU
2020	$	13	$	7	$	—	$	7
2021	11		5		—		5
2022	5		—		—		—
2023	5		1		—		—
2024	3		—		—		—
Thereafter	12		—		—		—
Total	$	49	$	13	$	—	$	12
Lease income recognized for the twelve months ended December 31, 2019	$	21	$	13	$	5	$	8

Lease, Cost [Table Text Block]

The following table provides the components of lease cost for the Registrants' operating leases for the year ended December 31, 2019.

	PPL		LKE		LG&E		KU
Lease cost:
Operating lease cost	$	33	$	25	$	12	$	13
Short-term lease cost	7		2		1		1
Total lease cost	$	40	$	27	$	13	$	14

The following table provides other key information related to the Registrants' operating leases at December 31, 2019.

	PPL		LKE		LG&E		KU
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	29	$	21	$	9	$	11
Right-of-use asset obtained in exchange for new operating lease liabilities	46		16		5		11

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

The following table provides the total future minimum rental payments for operating leases, as well as a reconciliation of these undiscounted cash flows to the lease liabilities recognized on the Balance Sheets as of December 31, 2019.

	PPL			LKE			LG&E			KU
2020	$	29		$	18		$	7		$	11
2021	22			13			5			8
2022	17			9			4			5
2023	15			7			3			4
2024	12			6			2			4
Thereafter	27			8			3			4
Total	$	122		$	61		$	24		$	36
Weighted-average discount rate	3.48		%	3.96		%	3.89		%	4.01		%
Weighted-average remaining lease term (in years)	8			5			5			5
Current lease liabilities (a)	$	26		$	16		$	6		$	10
Non-current lease liabilities (a)	78			39			15			23
Right-of-use assets (b)	96			47			18			28

(a) Current lease liabilities are included in "Other Current Liabilities" on the Balance Sheets. Non-current lease liabilities are included in "Other deferred credits and noncurrent liabilities" on the Balance Sheets. The difference between the total future minimum lease payments and the recorded lease liabilities is due to the impact of discounting.

(b) Right-of-use assets are included in "Other noncurrent assets" on the Balance Sheets.

At December 31, 2018, the total future minimum rental payments for all operating leases were estimated to be:

	PPL		LKE		LG&E		KU
2019	$	26	$	20	$	10	$	10
2020	21		15		6		9
2021	15		11		4		7
2022	13		7		3		4
2023	8		6		3		3
Thereafter	33		11		4		6
Total	$	116	$	70	$	30	$	39

Louisville Gas And Electric Co [Member]

Leases [Line Items]

Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]

At December 31, 2019, PPL, LKE, LG&E and KU expect to receive the following fixed lease payments over the remaining term of their operating lease agreements:

	PPL		LKE		LG&E		KU
2020	$	13	$	7	$	—	$	7
2021	11		5		—		5
2022	5		—		—		—
2023	5		1		—		—
2024	3		—		—		—
Thereafter	12		—		—		—
Total	$	49	$	13	$	—	$	12
Lease income recognized for the twelve months ended December 31, 2019	$	21	$	13	$	5	$	8

Lease, Cost [Table Text Block]

The following table provides the components of lease cost for the Registrants' operating leases for the year ended December 31, 2019.

	PPL		LKE		LG&E		KU
Lease cost:
Operating lease cost	$	33	$	25	$	12	$	13
Short-term lease cost	7		2		1		1
Total lease cost	$	40	$	27	$	13	$	14

The following table provides other key information related to the Registrants' operating leases at December 31, 2019.

	PPL		LKE		LG&E		KU
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	29	$	21	$	9	$	11
Right-of-use asset obtained in exchange for new operating lease liabilities	46		16		5		11

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

The following table provides the total future minimum rental payments for operating leases, as well as a reconciliation of these undiscounted cash flows to the lease liabilities recognized on the Balance Sheets as of December 31, 2019.

	PPL			LKE			LG&E			KU
2020	$	29		$	18		$	7		$	11
2021	22			13			5			8
2022	17			9			4			5
2023	15			7			3			4
2024	12			6			2			4
Thereafter	27			8			3			4
Total	$	122		$	61		$	24		$	36
Weighted-average discount rate	3.48		%	3.96		%	3.89		%	4.01		%
Weighted-average remaining lease term (in years)	8			5			5			5
Current lease liabilities (a)	$	26		$	16		$	6		$	10
Non-current lease liabilities (a)	78			39			15			23
Right-of-use assets (b)	96			47			18			28

(a) Current lease liabilities are included in "Other Current Liabilities" on the Balance Sheets. Non-current lease liabilities are included in "Other deferred credits and noncurrent liabilities" on the Balance Sheets. The difference between the total future minimum lease payments and the recorded lease liabilities is due to the impact of discounting.

(b) Right-of-use assets are included in "Other noncurrent assets" on the Balance Sheets.

At December 31, 2018, the total future minimum rental payments for all operating leases were estimated to be:

	PPL		LKE		LG&E		KU
2019	$	26	$	20	$	10	$	10
2020	21		15		6		9
2021	15		11		4		7
2022	13		7		3		4
2023	8		6		3		3
Thereafter	33		11		4		6
Total	$	116	$	70	$	30	$	39

Kentucky Utilities Co [Member]

Leases [Line Items]

Lessor, Operating Lease, Payments to be Received, Maturity [Table Text Block]

At December 31, 2019, PPL, LKE, LG&E and KU expect to receive the following fixed lease payments over the remaining term of their operating lease agreements:

	PPL		LKE		LG&E		KU
2020	$	13	$	7	$	—	$	7
2021	11		5		—		5
2022	5		—		—		—
2023	5		1		—		—
2024	3		—		—		—
Thereafter	12		—		—		—
Total	$	49	$	13	$	—	$	12
Lease income recognized for the twelve months ended December 31, 2019	$	21	$	13	$	5	$	8

Lease, Cost [Table Text Block]

The following table provides the components of lease cost for the Registrants' operating leases for the year ended December 31, 2019.

	PPL		LKE		LG&E		KU
Lease cost:
Operating lease cost	$	33	$	25	$	12	$	13
Short-term lease cost	7		2		1		1
Total lease cost	$	40	$	27	$	13	$	14

The following table provides other key information related to the Registrants' operating leases at December 31, 2019.

	PPL		LKE		LG&E		KU
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	29	$	21	$	9	$	11
Right-of-use asset obtained in exchange for new operating lease liabilities	46		16		5		11

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

The following table provides the total future minimum rental payments for operating leases, as well as a reconciliation of these undiscounted cash flows to the lease liabilities recognized on the Balance Sheets as of December 31, 2019.

	PPL			LKE			LG&E			KU
2020	$	29		$	18		$	7		$	11
2021	22			13			5			8
2022	17			9			4			5
2023	15			7			3			4
2024	12			6			2			4
Thereafter	27			8			3			4
Total	$	122		$	61		$	24		$	36
Weighted-average discount rate	3.48		%	3.96		%	3.89		%	4.01		%
Weighted-average remaining lease term (in years)	8			5			5			5
Current lease liabilities (a)	$	26		$	16		$	6		$	10
Non-current lease liabilities (a)	78			39			15			23
Right-of-use assets (b)	96			47			18			28

(a) Current lease liabilities are included in "Other Current Liabilities" on the Balance Sheets. Non-current lease liabilities are included in "Other deferred credits and noncurrent liabilities" on the Balance Sheets. The difference between the total future minimum lease payments and the recorded lease liabilities is due to the impact of discounting.

(b) Right-of-use assets are included in "Other noncurrent assets" on the Balance Sheets.

At December 31, 2018, the total future minimum rental payments for all operating leases were estimated to be:

	PPL		LKE		LG&E		KU
2019	$	26	$	20	$	10	$	10
2020	21		15		6		9
2021	15		11		4		7
2022	13		7		3		4
2023	8		6		3		3
Thereafter	33		11		4		6
Total	$	116	$	70	$	30	$	39