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Accumulated Other Comprehensive Income (Loss) (Tables)
 9 Months Ended
Sep. 30, 2019
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)
 on qualifying
derivatives
 
Defined benefit plans
 
 
 
 
 
Prior
service
costs
 
Actuarial
gain
(loss)
 
Total
PPL
 
 
 
 
 
 
 
 
 
June 30, 2019
$
(1,616
)
 
$
6

 
$
(18
)
 
$
(2,368
)
 
$
(3,996
)
Amounts arising during the period
(285
)
 
16

 
—

 
(5
)
 
(274
)
Reclassifications from AOCI
—

 
(22
)
 
—

 
20

 
(2
)
Net OCI during the period
(285
)
 
(6
)
 
—

 
15

 
(276
)
September 30, 2019
$
(1,901
)
 
$
—

 
$
(18
)
 
$
(2,353
)
 
$
(4,272
)

 
Foreign
currency
translation
adjustments
 
Unrealized gains (losses)
 on qualifying
derivatives
 
Defined benefit plans
 
 
 
 
 
Prior
service
costs
 
Actuarial
gain
(loss)
 
Total
 
 
 
 
 
 
 
 
 
 
December 31, 2018
$
(1,533
)
 
$
(7
)
 
$
(19
)
 
$
(2,405
)
 
$
(3,964
)
Amounts arising during the period
(368
)
 
32

 
—

 
(10
)
 
(346
)
Reclassifications from AOCI
—

 
(25
)
 
1

 
62

 
38

Net OCI during the period
(368
)
 
7

 
1

 
52

 
(308
)
September 30, 2019
$
(1,901
)
 
$
—

 
$
(18
)
 
$
(2,353
)
 
$
(4,272
)
 
 
 
 
 
 
 
 
 
 
June 30, 2018
$
(1,223
)
 
$
(21
)
 
$
(7
)
 
$
(2,244
)
 
$
(3,495
)
Amounts arising during the period
(187
)
 
22

 
—

 
(8
)
 
(173
)
Reclassifications from AOCI
—

 
(14
)
 
—

 
34

 
20

Net OCI during the period
(187
)
 
8

 
—

 
26

 
(153
)
September 30, 2018
$
(1,410
)
 
$
(13
)
 
$
(7
)
 
$
(2,218
)
 
$
(3,648
)
 
 
 
 
 
 
 
 
 
 
December 31, 2017
$
(1,089
)
 
$
(13
)
 
$
(7
)
 
$
(2,313
)
 
$
(3,422
)
Amounts arising during the period
(321
)
 
21

 
(1
)
 
(9
)
 
(310
)
Reclassifications from AOCI
—

 
(21
)
 
1

 
104

 
84

Net OCI during the period
(321
)
 
—

 
—

 
95

 
(226
)
September 30, 2018
$
(1,410
)
 
$
(13
)
 
$
(7
)
 
$
(2,218
)
 
$
(3,648
)
Reclassification out of Other Comprehensive Income (Loss)
The following table presents PPL's 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
 
2019
 
2018
 
2019
 
2018
 
Statements of Income
Qualifying derivatives
 
 
 
 
 
 
 
 
 
 
Interest rate swaps
 
$
(2
)
 
$
(2
)
 
$
(6
)
 
$
(6
)
 
Interest Expense
Cross-currency swaps
 
27

 
18

 
34

 
30

 
Other Income (Expense) - net
 
 
—

 
1

 
—

 
1

 
Interest Expense
Total Pre-tax
 
25

 
17

 
28

 
25

 
 
Income Taxes
 
(3
)
 
(3
)
 
(3
)
 
(4
)
 
 
Total After-tax
 
22

 
14

 
25

 
21

 
 
 
 
 
 
 
 
 
 
 
 
 
Defined benefit plans
 
 
 
 
 
 
 
 
 
 
Prior service costs (a)
 
(1
)
 
(1
)
 
(2
)
 
(2
)
 
 
Net actuarial loss (a)
 
(25
)
 
(42
)
 
(78
)
 
(130
)
 
 
Total Pre-tax
 
(26
)
 
(43
)
 
(80
)
 
(132
)
 
 
Income Taxes
 
6

 
9

 
17

 
27

 
 
Total After-tax
 
(20
)
 
(34
)
 
(63
)
 
(105
)
 
 
 
 
 
 
 
 
 
 
 
 
 
Total reclassifications during the period
 
$
2

 
$
(20
)
 
$
(38
)
 
$
(84
)
 
 


(a)
These AOCI components are included in the computation of net periodic defined benefit cost. See Note 10 for additional information.