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Segment and Related Information | 12 Months Ended
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Dec. 31, 2018
Segment Reporting [Abstract] |
Segment and Related Information | (PPL) PPL is organized into three segments: U.K. Regulated, Kentucky Regulated and Pennsylvania Regulated. PPL's segments are segmented by geographic location. The U.K. Regulated segment consists of PPL Global, which primarily includes WPD's regulated electricity distribution operations, the results of hedging the translation of WPD's earnings from GBP into U.S. dollars, and certain costs, such as U.S. income taxes, administrative costs, and certain acquisition-related financing costs. The Kentucky Regulated segment consists primarily of LKE's regulated electricity generation, transmission and distribution operations of LG&E and KU, as well as LG&E's regulated distribution and sale of natural gas. In addition, certain acquisition-related financing costs are allocated to the Kentucky Regulated segment. The Pennsylvania Regulated segment includes the regulated electricity transmission and distribution operations of PPL Electric. In addition, certain costs are allocated to the Pennsylvania Regulated segment. "Corporate and Other" primarily includes financing costs incurred at the corporate level that have not been allocated or assigned to the segments, certain other unallocated costs, as well as the financial results of Safari Energy, which is presented to reconcile segment information to PPL's consolidated results. Income Statement data for the segments and reconciliation to PPL's consolidated results for the years ended December 31 are as follows:
| 2018 |  | 2017 |  | 2016
Operating Revenues from external customers (a) |  |  |  |  |
U.K. Regulated | $ | 2,268 |  |  | $ | 2,091 |  |  | $ | 2,207 |
Kentucky Regulated | 3,214 |  |  | 3,156 |  |  | 3,141 |
Pennsylvania Regulated | 2,277 |  |  | 2,195 |  |  | 2,156 |
Corporate and Other | 26 |  |  | 5 |  |  | 13 |
Total | $ | 7,785 |  |  | $ | 7,447 |  |  | $ | 7,517 |
Depreciation |  |  |  |  |  |  |
U.K. Regulated | $ | 247 |  |  | $ | 230 |  |  | $ | 233 |
Kentucky Regulated | 475 |  |  | 439 |  |  | 404 |
Pennsylvania Regulated | 352 |  |  | 309 |  |  | 253 |
Corporate and Other | 20 |  |  | 30 |  |  | 36 |
Total | $ | 1,094 |  |  | $ | 1,008 |  |  | $ | 926 |
Amortization (b) |  |  |  |  |  |  |  |
U.K. Regulated | $ | 34 |  |  | $ | 34 |  |  | $ | 16 |
Kentucky Regulated | 18 |  |  | 24 |  |  | 29 |
Pennsylvania Regulated | 22 |  |  | 33 |  |  | 32 |
Corporate and Other | 4 |  |  | 6 |  |  | 3 |
Total | $ | 78 |  |  | $ | 97 |  |  | $ | 80 |
Unrealized (gains) losses on derivatives and other hedging activities (c) |  |  |  |  |  |
U.K. Regulated | $ | (190 | ) |  | $ | 166 |  |  | $ | 13 |
Kentucky Regulated | 6 |  |  | 6 |  |  | 6 |
Corporate and Other | (2 | ) |  | 6 |  |  | — |
Total | $ | (186 | ) |  | $ | 178 |  |  | $ | 19 |
Interest Expense |  |  |  |  |  |  |  |
U.K. Regulated | $ | 413 |  |  | $ | 397 |  |  | $ | 402 |
Kentucky Regulated | 274 |  |  | 261 |  |  | 260 |
Pennsylvania Regulated | 159 |  |  | 142 |  |  | 129 |
Corporate and Other | 117 |  |  | 101 |  |  | 97 |
Total | $ | 963 |  |  | $ | 901 |  |  | $ | 888 |
Income Before Income Taxes |  |  |  |  |  |  |  |
U.K. Regulated | $ | 1,339 |  |  | $ | 804 |  |  | $ | 1,479 |
Kentucky Regulated | 531 |  |  | 645 |  |  | 640 |
Pennsylvania Regulated | 567 |  |  | 575 |  |  | 550 |
Corporate and Other | (152 | ) |  | (112 | ) |  | (119 | )
Total | $ | 2,285 |  |  | $ | 1,912 |  |  | $ | 2,550 |
| 2018 |  | 2017 |  | 2016
Income Taxes (d) |  |  |  |  |  |  |  |
U.K. Regulated | $ | 225 |  |  | $ | 152 |  |  | $ | 233 |
Kentucky Regulated | 120 |  |  | 359 |  |  | 242 |
Pennsylvania Regulated | 136 |  |  | 216 |  |  | 212 |
Corporate and Other | (23 | ) |  | 57 |  |  | (39 | )
Total | $ | 458 |  |  | $ | 784 |  |  | $ | 648 |
Deferred income taxes and investment tax credits (e) |  |  |  |  |  |  |  |
U.K. Regulated | $ | 118 |  |  | $ | 66 |  |  | $ | 31 |
Kentucky Regulated | 94 |  |  | 294 |  |  | 291 |
Pennsylvania Regulated | 125 |  |  | 257 |  |  | 221 |
Corporate and Other | 18 |  |  | 90 |  |  | 17 |
Total | $ | 355 |  |  | $ | 707 |  |  | $ | 560 |
Net Income |  |  |  |  |  |  |  |
U.K. Regulated | $ | 1,114 |  |  | $ | 652 |  |  | $ | 1,246 |
Kentucky Regulated | 411 |  |  | 286 |  |  | 398 |
Pennsylvania Regulated | 431 |  |  | 359 |  |  | 338 |
Corporate and Other | (129 | ) |  | (169 | ) |  | (80 | )
Total | $ | 1,827 |  |  | $ | 1,128 |  |  | $ | 1,902 |
(a) | See Note 1 for additional information on Operating Revenues.
(b) | Represents non-cash expense items that include amortization of regulatory assets, debt discounts and premiums and debt issuance costs.
(c) | Includes unrealized gains and losses from economic activity. See Note 17 for additional information.
(d) | Represents both current and deferred income taxes, including investment tax credits. See Note 6 for additional information on the impact of the TCJA in 2018 and 2017.
(e) | Represents a non-cash expense item that is also included in "Income Taxes."
Cash Flow data for the segments and reconciliation to PPL's consolidated results for the years ended December 31 are as follows:
| 2018 |  | 2017 |  | 2016
Expenditures for long-lived assets |  |  |  |  |  |  |  |
U.K. Regulated | $ | 954 |  |  | $ | 1,015 |  |  | $ | 1,031 |
Kentucky Regulated | 1,117 |  |  | 892 |  |  | 791 |
Pennsylvania Regulated | 1,196 |  |  | 1,254 |  |  | 1,134 |
Corporate and Other | 1 |  |  | 10 |  |  | 1 |
Total | $ | 3,268 |  |  | $ | 3,171 |  |  | $ | 2,957 |
The following provides Balance Sheet data for the segments and reconciliation to PPL's consolidated results as of:
| As of December 31,
| 2018 |  | 2017
Total Assets |  |  |  |  |
U.K. Regulated (a) | $ | 16,700 |  |  | $ | 16,813 |
Kentucky Regulated | 15,078 |  |  | 14,468 |
Pennsylvania Regulated | 11,257 |  |  | 10,082 |
Corporate and Other (b) | 361 |  |  | 116 |
Total | $ | 43,396 |  |  | $ | 41,479 |
(a) | Includes $12.4 billion and $12.5 billion of net PP&E as of December 31, 2018 and December 31, 2017. WPD is not subject to accounting for the effects of certain types of regulation as prescribed by GAAP.
(b) | Primarily consists of unallocated items, including cash, PP&E, goodwill, the elimination of inter-segment transactions as well as the assets of Safari Energy.
Geographic data for the years ended December 31 are as follows:
| 2018 |  | 2017 |  | 2016
Revenues from external customers |  |  |  |  |  |  |  |
U.K. | $ | 2,268 |  |  | $ | 2,091 |  |  | $ | 2,207 |
U.S. | 5,517 |  |  | 5,356 |  |  | 5,310 |
Total | $ | 7,785 |  |  | $ | 7,447 |  |  | $ | 7,517 |
| As of December 31,
| 2018 |  | 2017
Long-Lived Assets |  |  |  |  |
U.K. | $ | 12,791 |  |  | $ | 12,851 |
U.S. | 22,384 |  |  | 20,936 |
Total | $ | 35,175 |  |  | $ | 33,787 |
(PPL Electric, LKE, LG&E and KU) PPL Electric has two operating segments that are aggregated into a single reportable segment. LKE, LG&E and KU are individually single operating and reportable segments.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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