Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2019

Accumulated Other Comprehensive Income (Loss) [Line Items]

Accumulated Other Comprehensive Income (Loss)

The after-tax changes in AOCI by component for the years ended December 31 were as follows:

										Defined benefit plans
	Foreign currency translation adjustments			Unrealized gains (losses) on qualifying derivatives			Equity investees' AOCI			Prior service costs			Actuarial gain (loss)			Total
PPL
December 31, 2016	$	(1,627	)	$	(7	)	$	(1	)	$	(8	)	$	(2,135	)	$	(3,778	)
Amounts arising during the year	538			(79		)	—			—			(308		)	151
Reclassifications from AOCI	—			73			1			1			130			205
Net OCI during the year	538			(6		)	1			1			(178		)	356
December 31, 2017	$	(1,089	)	$	(13	)	$	—		$	(7	)	$	(2,313	)	$	(3,422	)

										Defined benefit plans
	Foreign currency translation adjustments			Unrealized gains (losses) on qualifying derivatives			Equity investees' AOCI			Prior service costs			Actuarial gain (loss)			Total
Amounts arising during the year	(444		)	36			—			(11		)	(187		)	(606		)
Reclassifications from AOCI	—			(29		)	—			2			142			115
Net OCI during the year	(444		)	7			—			(9		)	(45		)	(491		)
Adoption of reclassification of certain tax effects from AOCI guidance cumulative effect adjustment (Note 1)	—			(1		)	—			(3		)	(47		)	(51		)
December 31, 2018	$	(1,533	)	$	(7	)	$	—		$	(19	)	$	(2,405	)	$	(3,964	)
Amounts arising during the year	108			(11		)	—			(1		)	(592		)	(496		)
Reclassifications from AOCI	—			13			—			2			87			102
Net OCI during the year	108			2			—			1			(505		)	(394		)
December 31, 2019	$	(1,425	)	$	(5	)	$	—		$	(18	)	$	(2,910	)	$	(4,358	)
LKE
December 31, 2016							$	(1	)	$	(8	)	$	(61	)	$	(70	)
Amounts arising during the year							—			(2		)	(23		)	(25		)
Reclassifications from AOCI							1			1			5			7
Net OCI during the year							1			(1		)	(18		)	(18		)
December 31, 2017							$	—		$	(9	)	$	(79	)	$	(88	)
Amounts arising during the year							—			—			7			7
Reclassifications from AOCI							—			2			8			10
Net OCI during the year							—			2			15			17
Adoption of reclassification of certain tax effects from AOCI guidance cumulative effect adjustment (Note 1)							—			(2		)	(16		)	(18		)
December 31, 2018							$	—		$	(9	)	$	(80	)	$	(89	)
Amounts arising during the year							—			(1		)	(6		)	(7		)
Reclassifications from AOCI							—			1			2			3
Net OCI during the year							—			—			(4		)	(4		)
December 31, 2019							$	—		$	(9	)	$	(84	)	$	(93	)

Reclassification out of Other Comprehensive Income (Loss)

	PPL
Details about AOCI	2019			2018			2017			Affected Line Item on the Statements of Income
Qualifying derivatives
Interest rate swaps	$	(9	)	$	(8	)	$	(9	)	Interest Expense
Cross-currency swaps	(9		)	42			(82		)	Other Income (Expense) - net
	—			1			—			Interest Expense
Total Pre-tax	(18		)	35			(91		)
Income Taxes	5			(6		)	18
Total After-tax	(13		)	29			(73		)
Equity Investees' AOCI	—			—			(1		)	Other Income (Expense) - net
Total Pre-tax	—			—			(1		)
Income Taxes	—			—			—
Total After-tax	—			—			(1		)
Defined benefit plans
Prior service costs	(3		)	(2		)	(2		)
Net actuarial loss	(109		)	(178		)	(167		)
Total Pre-tax	(112		)	(180		)	(169		)
Income Taxes	23			36			38
Total After-tax	(89		)	(144		)	(131		)
Total reclassifications during the year	$	(102	)	$	(115	)	$	(205	)

The following table presents PPL's gains (losses) and related income taxes for reclassifications from AOCI for the years ended December 31, 2019, 2018 and 2017.

LG And E And KU Energy LLC [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Accumulated Other Comprehensive Income (Loss)

The after-tax changes in AOCI by component for the years ended December 31 were as follows:

										Defined benefit plans
	Foreign currency translation adjustments			Unrealized gains (losses) on qualifying derivatives			Equity investees' AOCI			Prior service costs			Actuarial gain (loss)			Total
PPL
December 31, 2016	$	(1,627	)	$	(7	)	$	(1	)	$	(8	)	$	(2,135	)	$	(3,778	)
Amounts arising during the year	538			(79		)	—			—			(308		)	151
Reclassifications from AOCI	—			73			1			1			130			205
Net OCI during the year	538			(6		)	1			1			(178		)	356
December 31, 2017	$	(1,089	)	$	(13	)	$	—		$	(7	)	$	(2,313	)	$	(3,422	)

										Defined benefit plans
	Foreign currency translation adjustments			Unrealized gains (losses) on qualifying derivatives			Equity investees' AOCI			Prior service costs			Actuarial gain (loss)			Total
Amounts arising during the year	(444		)	36			—			(11		)	(187		)	(606		)
Reclassifications from AOCI	—			(29		)	—			2			142			115
Net OCI during the year	(444		)	7			—			(9		)	(45		)	(491		)
Adoption of reclassification of certain tax effects from AOCI guidance cumulative effect adjustment (Note 1)	—			(1		)	—			(3		)	(47		)	(51		)
December 31, 2018	$	(1,533	)	$	(7	)	$	—		$	(19	)	$	(2,405	)	$	(3,964	)
Amounts arising during the year	108			(11		)	—			(1		)	(592		)	(496		)
Reclassifications from AOCI	—			13			—			2			87			102
Net OCI during the year	108			2			—			1			(505		)	(394		)
December 31, 2019	$	(1,425	)	$	(5	)	$	—		$	(18	)	$	(2,910	)	$	(4,358	)
LKE
December 31, 2016							$	(1	)	$	(8	)	$	(61	)	$	(70	)
Amounts arising during the year							—			(2		)	(23		)	(25		)
Reclassifications from AOCI							1			1			5			7
Net OCI during the year							1			(1		)	(18		)	(18		)
December 31, 2017							$	—		$	(9	)	$	(79	)	$	(88	)
Amounts arising during the year							—			—			7			7
Reclassifications from AOCI							—			2			8			10
Net OCI during the year							—			2			15			17
Adoption of reclassification of certain tax effects from AOCI guidance cumulative effect adjustment (Note 1)							—			(2		)	(16		)	(18		)
December 31, 2018							$	—		$	(9	)	$	(80	)	$	(89	)
Amounts arising during the year							—			(1		)	(6		)	(7		)
Reclassifications from AOCI							—			1			2			3
Net OCI during the year							—			—			(4		)	(4		)
December 31, 2019							$	—		$	(9	)	$	(84	)	$	(93	)