XML 93 R54.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
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, 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 | )
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 years ended December 31, 2018, 2017 and 2016.
|  | 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) | 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 | )

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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=114867106&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=ppl_LGAndEAndKUEnergyLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |