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Accumulated Other Comprehensive Income
 12 Months Ended
Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Accumulated Other Comprehensive Income (Loss)
 
(PPL and LKE)
 
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, 2015
$
(520
)
 
$
(7
)
 
$
—

 
$
(6
)
 
$
(2,195
)
 
$
(2,728
)
Amounts arising during the year
(1,107
)
 
91

 
—

 
(3
)
 
(61
)
 
(1,080
)
Reclassifications from AOCI
—

 
(91
)
 
(1
)
 
1

 
121

 
30

Net OCI during the year
(1,107
)
 
—

 
(1
)
 
(2
)
 
60

 
(1,050
)
December 31, 2016
$
(1,627
)
 
$
(7
)
 
$
(1
)
 
$
(8
)
 
$
(2,135
)
 
$
(3,778
)
 
 
 
 
 
 
 
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
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
)
 
 
 
 
 
 
 
 
 
 
 
 
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
)
 
 
 
 
 
 
 
 
 
 
 
 
LKE 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2015
 

 
 

 
$
—

 
$
(10
)
 
$
(36
)
 
$
(46
)
Amounts arising during the year
 

 
 

 
—

 
—

 
(27
)
 
(27
)
Reclassifications from AOCI
 
 
 
 
(1
)
 
2

 
2

 
3

Net OCI during the year
 

 
 

 
(1
)
 
2

 
(25
)
 
(24
)
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
)


The following table presents PPL's gains (losses) and related income taxes for reclassifications from AOCI for the years ended December 31, 2018, 2017 and 2016. LKE amounts are insignificant for the years ended December 31, 2018, 2017 and 2016. The defined benefit plan components of AOCI are not reflected in their entirety in the statement of income; rather, they are included in the computation of net periodic defined benefit costs (credits) and subject to capitalization. See Note 11 for additional information.
 
 
PPL
 
 
Details about AOCI
 
2018
 
2017
 
2016
 
Affected Line Item on the
Statements of Income
Qualifying derivatives
 
 
 
 
 
 
 
 
Interest rate swaps
 
$
(8
)
 
$
(9
)
 
$
(7
)
 
Interest Expense
Cross-currency swaps
 
42

 
(82
)
 
116

 
Other Income (Expense) - net
 
 
1

 
—

 
3

 
Interest Expense
Total Pre-tax
 
35

 
(91
)
 
112

 
 
Income Taxes
 
(6
)
 
18

 
(21
)
 
 
Total After-tax
 
29

 
(73
)
 
91

 
 
 
 
 
 
 
 
 
 
 
Equity Investees' AOCI
 
—

 
(1
)
 
1

 
Other Income (Expense) - net
Total Pre-tax
 
—

 
(1
)
 
1

 
 
Income Taxes
 
—

 
—

 
—

 
 
Total After-tax
 
—

 
(1
)
 
1

 
 
 
 
 
 
 
 
 
 
 
Defined benefit plans
 
 
 
 
 
 
 
 
Prior service costs
 
(2
)
 
(2
)
 
(2
)
 
 
Net actuarial loss
 
(178
)
 
(167
)
 
(156
)
 
 
Total Pre-tax
 
(180
)
 
(169
)
 
(158
)
 
 
Income Taxes
 
36

 
38

 
36

 
 
Total After-tax
 
(144
)
 
(131
)
 
(122
)
 
 
Total reclassifications during the year
 
$
(115
)
 
$
(205
)
 
$
(30
)
 
 
LG And E And KU Energy LLC [Member]  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Accumulated Other Comprehensive Income (Loss)
 
(PPL and LKE)
 
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, 2015
$
(520
)
 
$
(7
)
 
$
—

 
$
(6
)
 
$
(2,195
)
 
$
(2,728
)
Amounts arising during the year
(1,107
)
 
91

 
—

 
(3
)
 
(61
)
 
(1,080
)
Reclassifications from AOCI
—

 
(91
)
 
(1
)
 
1

 
121

 
30

Net OCI during the year
(1,107
)
 
—

 
(1
)
 
(2
)
 
60

 
(1,050
)
December 31, 2016
$
(1,627
)
 
$
(7
)
 
$
(1
)
 
$
(8
)
 
$
(2,135
)
 
$
(3,778
)
 
 
 
 
 
 
 
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
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
)
 
 
 
 
 
 
 
 
 
 
 
 
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
)
 
 
 
 
 
 
 
 
 
 
 
 
LKE 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2015
 

 
 

 
$
—

 
$
(10
)
 
$
(36
)
 
$
(46
)
Amounts arising during the year
 

 
 

 
—

 
—

 
(27
)
 
(27
)
Reclassifications from AOCI
 
 
 
 
(1
)
 
2

 
2

 
3

Net OCI during the year
 

 
 

 
(1
)
 
2

 
(25
)
 
(24
)
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
)


The following table presents PPL's gains (losses) and related income taxes for reclassifications from AOCI for the years ended December 31, 2018, 2017 and 2016. LKE amounts are insignificant for the years ended December 31, 2018, 2017 and 2016. The defined benefit plan components of AOCI are not reflected in their entirety in the statement of income; rather, they are included in the computation of net periodic defined benefit costs (credits) and subject to capitalization. See Note 11 for additional information.
 
 
PPL
 
 
Details about AOCI
 
2018
 
2017
 
2016
 
Affected Line Item on the
Statements of Income
Qualifying derivatives
 
 
 
 
 
 
 
 
Interest rate swaps
 
$
(8
)
 
$
(9
)
 
$
(7
)
 
Interest Expense
Cross-currency swaps
 
42

 
(82
)
 
116

 
Other Income (Expense) - net
 
 
1

 
—

 
3

 
Interest Expense
Total Pre-tax
 
35

 
(91
)
 
112

 
 
Income Taxes
 
(6
)
 
18

 
(21
)
 
 
Total After-tax
 
29

 
(73
)
 
91

 
 
 
 
 
 
 
 
 
 
 
Equity Investees' AOCI
 
—

 
(1
)
 
1

 
Other Income (Expense) - net
Total Pre-tax
 
—

 
(1
)
 
1

 
 
Income Taxes
 
—

 
—

 
—

 
 
Total After-tax
 
—

 
(1
)
 
1

 
 
 
 
 
 
 
 
 
 
 
Defined benefit plans
 
 
 
 
 
 
 
 
Prior service costs
 
(2
)
 
(2
)
 
(2
)
 
 
Net actuarial loss
 
(178
)
 
(167
)
 
(156
)
 
 
Total Pre-tax
 
(180
)
 
(169
)
 
(158
)
 
 
Income Taxes
 
36

 
38

 
36

 
 
Total After-tax
 
(144
)
 
(131
)
 
(122
)
 
 
Total reclassifications during the year
 
$
(115
)
 
$
(205
)
 
$
(30
)