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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2020
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 March 31 were as follows.
| Foreign currency translation adjustments |  | Unrealized gains (losses) on qualifying derivatives |  | Defined benefit plans |  |
|  |  | Prior service costs |  | Actuarial gain (loss) |  | Total
PPL |  |  |  |  |  |  |  |  |
December 31, 2019 | $ | (1,425 | ) |  | $ | (5 | ) |  | $ | (18 | ) |  | $ | (2,910 | ) |  | $ | (4,358 | )
Amounts arising during the period | (61 | ) |  | 8 |  |  | — |  |  | — |  |  | (53 | )
Reclassifications from AOCI | — |  |  | (3 | ) |  | 1 |  |  | 47 |  |  | 45 |
Net OCI during the period | (61 | ) |  | 5 |  |  | 1 |  |  | 47 |  |  | (8 | )
March 31, 2020 | $ | (1,486 | ) |  | $ | — |  |  | $ | (17 | ) |  | $ | (2,863 | ) |  | $ | (4,366 | )
December 31, 2018 | $ | (1,533 | ) |  | $ | (7 | ) |  | $ | (19 | ) |  | $ | (2,405 | ) |  | $ | (3,964 | )
Amounts arising during the period | 294 |  |  | (19 | ) |  | — |  |  | (3 | ) |  | 272 |
Reclassifications from AOCI | — |  |  | 24 |  |  | — |  |  | 21 |  |  | 45 |
Net OCI during the period | 294 |  |  | 5 |  |  | — |  |  | 18 |  |  | 317 |
March 31, 2019 | $ | (1,239 | ) |  | $ | (2 | ) |  | $ | (19 | ) |  | $ | (2,387 | ) |  | $ | (3,647 | )
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 March 31.
|  | Three Months |  | Affected Line Item on the
Details about AOCI |  | 2020 |  | 2019 |  | Statements of Income
Qualifying derivatives |  |  |  |  |  |
Interest rate swaps |  | $ | (3 | ) |  | $ | (2 | ) |  | Interest Expense
Cross-currency swaps |  | 6 |  |  | (28 | ) |  | Other Income (Expense) - net
Total Pre-tax |  | 3 |  |  | (30 | ) |  |
Income Taxes |  | — |  |  | 6 |  |  |
Total After-tax |  | 3 |  |  | (24 | ) |  |
Defined benefit plans |  |  |  |  |  |
Prior service costs (a) |  | (1 | ) |  | — |  |  |
Net actuarial loss (a) |  | (59 | ) |  | (26 | ) |  |
Total Pre-tax |  | (60 | ) |  | (26 | ) |  |
Income Taxes |  | 12 |  |  | 5 |  |  |
Total After-tax |  | (48 | ) |  | (21 | ) |  |
Total reclassifications during the period |  | $ | (45 | ) |  | $ | (45 | ) |  |
(a) These AOCI components are included in the computation of net periodic defined benefit cost. See Note 9 for additional information.

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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