Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2016

Accumulated Other Comprehensive Income (Loss) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss)

The after-tax changes in AOCI by component for the periods ended September 30 were as follows.

	Foreign currency translation adjustments			Unrealized gains (losses)									Defined benefit plans
				Available- for-sale securities			Qualifying derivatives			Equity investees' AOCI			Prior service costs			Actuarial gain (loss)			Total
PPL
June 30, 2016	$	(716	)	$	—		$	(5	)	$	(1	)	$	(5	)	$	(2,130	)	$	(2,857	)
Amounts arising during the period	(641		)	—			62			—			—			(6		)	(585		)
Reclassifications from AOCI	—			—			(69		)	—			—			31			(38		)
Net OCI during the period	(641		)	—			(7		)	—			—			25			(623		)
September 30, 2016	$	(1,357	)	$	—		$	(12	)	$	(1	)	$	(5	)	$	(2,105	)	$	(3,480	)
December 31, 2015	$	(520	)	$	—		$	(7	)	$	—		$	(6	)	$	(2,195	)	$	(2,728	)
Amounts arising during the period	(837		)	—			57			—			—			(4		)	(784		)
Reclassifications from AOCI	—			—			(62		)	(1		)	1			94			32
Net OCI during the period	(837		)	—			(5		)	(1		)	1			90			(752		)
September 30, 2016	$	(1,357	)	$	—		$	(12	)	$	(1	)	$	(5	)	$	(2,105	)	$	(3,480	)
June 30, 2015	$	(435	)	$	—		$	2		$	—		$	(3	)	$	(1,848	)	$	(2,284	)
Amounts arising during the period	52			—			(19		)	—			—			—			33
Reclassifications from AOCI	—			—			10			—			—			35			45
Net OCI during the period	52			—			(9		)	—			—			35			78
September 30, 2015	$	(383	)	$	—		$	(7	)	$	—		$	(3	)	$	(1,813	)	$	(2,206	)
December 31, 2014	$	(286	)	$	202		$	20		$	1		$	3		$	(2,214	)	$	(2,274	)
Amounts arising during the period	(97		)	7			8			—			(6		)	52			(36		)
Reclassifications from AOCI	—			(2		)	20			(1		)	—			111			128
Net OCI during the period	(97		)	5			28			(1		)	(6		)	163			92
Distribution of PPL Energy Supply (Note 8)	—			(207		)	(55		)	—			—			238			(24		)
September 30, 2015	$	(383	)	$	—		$	(7	)	$	—		$	(3	)	$	(1,813	)	$	(2,206	)
LKE
June 30, 2016										$	(1	)	$	(9	)	$	(33	)	$	(43	)
Amounts arising during the period										—			—			—			—
Reclassifications from AOCI										—			—			1			1
Net OCI during the period										—			—			1			1
September 30, 2016										$	(1	)	$	(9	)	$	(32	)	$	(42	)

	Foreign currency translation adjustments	Unrealized gains (losses)					Defined benefit plans
		Available- for-sale securities	Qualifying derivatives	Equity investees' AOCI			Prior service costs			Actuarial gain (loss)			Total
December 31, 2015				$	—		$	(10	)	$	(36	)	$	(46	)
Amounts arising during the period				—			—			1			1
Reclassifications from AOCI				(1		)	1			3			3
Net OCI during the period				(1		)	1			4			4
September 30, 2016				$	(1	)	$	(9	)	$	(32	)	$	(42	)
June 30, 2015				$	(1	)	$	(7	)	$	(44	)	$	(52	)
Amounts arising during the period				—			—			—			—
Reclassifications from AOCI				—			—			1			1
Net OCI during the period				—			—			1			1
September 30, 2015				$	(1	)	$	(7	)	$	(43	)	$	(51	)
December 31, 2014				$	—		$	(8	)	$	(37	)	$	(45	)
Amounts arising during the period				—			—			(8		)	(8		)
Reclassifications from AOCI				(1		)	1			2			2
Net OCI during the period				(1		)	1			(6		)	(6		)
September 30, 2015				$	(1	)	$	(7	)	$	(43	)	$	(51	)

Reclassification out of Other Comprehensive Income (Loss)

The following table presents the gains (losses) and related income taxes for reclassifications from AOCI for the periods ended September 30.

	Three Months						Nine Months						Affected Line Item on the
Details about AOCI	2016			2015			2016			2015			Statements of Income
Available-for-sale securities	$	—		$	—		$	—		$	4		Other Income (Expense) - net
Total Pre-tax	—			—			—			4
Income Taxes	—			—			—			(2		)
Total After-tax	—			—			—			2
Qualifying derivatives
Interest rate swaps	(2		)	(2		)	(5		)	(9		)	Interest Expense
	—			—			—			(77		)	Discontinued operations
Cross-currency swaps	86			(10		)	80			22			Other Income (Expense) - net
	2			(1		)	2			1			Interest Expense
Commodity contracts	—			—			—			20			Discontinued operations
Total Pre-tax	86			(13		)	77			(43		)
Income Taxes	(17		)	3			(15		)	23
Total After-tax	69			(10		)	62			(20		)

	Three Months						Nine Months						Affected Line Item on the
Details about AOCI	2016			2015			2016			2015			Statements of Income
Equity investees' AOCI	—			—			1			2			Other Income (Expense) - net
Total Pre-tax	—			—			1			2
Income Taxes	—			—			—			(1		)
Total After-tax	—			—			1			1
Defined benefit plans
Prior service costs	(1		)	—			(2		)	—
Net actuarial loss	(41		)	(45		)	(121		)	(146		)
Total Pre-tax	(42		)	(45		)	(123		)	(146		)
Income Taxes	11			10			28			35
Total After-tax	(31		)	(35		)	(95		)	(111		)
Total reclassifications during the period	$	38		$	(45	)	$	(32	)	$	(128	)

LG And E And KU Energy LLC [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss)

The after-tax changes in AOCI by component for the periods ended September 30 were as follows.

	Foreign currency translation adjustments			Unrealized gains (losses)									Defined benefit plans
				Available- for-sale securities			Qualifying derivatives			Equity investees' AOCI			Prior service costs			Actuarial gain (loss)			Total
PPL
June 30, 2016	$	(716	)	$	—		$	(5	)	$	(1	)	$	(5	)	$	(2,130	)	$	(2,857	)
Amounts arising during the period	(641		)	—			62			—			—			(6		)	(585		)
Reclassifications from AOCI	—			—			(69		)	—			—			31			(38		)
Net OCI during the period	(641		)	—			(7		)	—			—			25			(623		)
September 30, 2016	$	(1,357	)	$	—		$	(12	)	$	(1	)	$	(5	)	$	(2,105	)	$	(3,480	)
December 31, 2015	$	(520	)	$	—		$	(7	)	$	—		$	(6	)	$	(2,195	)	$	(2,728	)
Amounts arising during the period	(837		)	—			57			—			—			(4		)	(784		)
Reclassifications from AOCI	—			—			(62		)	(1		)	1			94			32
Net OCI during the period	(837		)	—			(5		)	(1		)	1			90			(752		)
September 30, 2016	$	(1,357	)	$	—		$	(12	)	$	(1	)	$	(5	)	$	(2,105	)	$	(3,480	)
June 30, 2015	$	(435	)	$	—		$	2		$	—		$	(3	)	$	(1,848	)	$	(2,284	)
Amounts arising during the period	52			—			(19		)	—			—			—			33
Reclassifications from AOCI	—			—			10			—			—			35			45
Net OCI during the period	52			—			(9		)	—			—			35			78
September 30, 2015	$	(383	)	$	—		$	(7	)	$	—		$	(3	)	$	(1,813	)	$	(2,206	)
December 31, 2014	$	(286	)	$	202		$	20		$	1		$	3		$	(2,214	)	$	(2,274	)
Amounts arising during the period	(97		)	7			8			—			(6		)	52			(36		)
Reclassifications from AOCI	—			(2		)	20			(1		)	—			111			128
Net OCI during the period	(97		)	5			28			(1		)	(6		)	163			92
Distribution of PPL Energy Supply (Note 8)	—			(207		)	(55		)	—			—			238			(24		)
September 30, 2015	$	(383	)	$	—		$	(7	)	$	—		$	(3	)	$	(1,813	)	$	(2,206	)
LKE
June 30, 2016										$	(1	)	$	(9	)	$	(33	)	$	(43	)
Amounts arising during the period										—			—			—			—
Reclassifications from AOCI										—			—			1			1
Net OCI during the period										—			—			1			1
September 30, 2016										$	(1	)	$	(9	)	$	(32	)	$	(42	)

	Foreign currency translation adjustments	Unrealized gains (losses)					Defined benefit plans
		Available- for-sale securities	Qualifying derivatives	Equity investees' AOCI			Prior service costs			Actuarial gain (loss)			Total
December 31, 2015				$	—		$	(10	)	$	(36	)	$	(46	)
Amounts arising during the period				—			—			1			1
Reclassifications from AOCI				(1		)	1			3			3
Net OCI during the period				(1		)	1			4			4
September 30, 2016				$	(1	)	$	(9	)	$	(32	)	$	(42	)
June 30, 2015				$	(1	)	$	(7	)	$	(44	)	$	(52	)
Amounts arising during the period				—			—			—			—
Reclassifications from AOCI				—			—			1			1
Net OCI during the period				—			—			1			1
September 30, 2015				$	(1	)	$	(7	)	$	(43	)	$	(51	)
December 31, 2014				$	—		$	(8	)	$	(37	)	$	(45	)
Amounts arising during the period				—			—			(8		)	(8		)
Reclassifications from AOCI				(1		)	1			2			2
Net OCI during the period				(1		)	1			(6		)	(6		)
September 30, 2015				$	(1	)	$	(7	)	$	(43	)	$	(51	)