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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Unaudited [Line Items] |
Quarterly Financial Information (Unaudited) | QUARTERLY FINANCIAL AND DIVIDEND DATA (Unaudited) PPL Corporation and Subsidiaries (Millions of Dollars, except per share data)
| For the Quarters Ended (a)
| March 31 |  | June 30 |  | Sept. 30 |  | Dec. 31
2018 |  |  |  |  |  |  |
Operating revenues | $ | 2,126 |  |  | $ | 1,848 |  |  | $ | 1,872 |  |  | $ | 1,939 |
Operating income | 851 |  |  | 658 |  |  | 686 |  |  | 657 |
Net income (e) | 452 |  |  | 515 |  |  | 445 |  |  | 415 |
Net income available to PPL common shareowners: (b) |  |  |  |  |  |  |  |  |  |  |
Basic EPS | 0.65 |  |  | 0.74 |  |  | 0.63 |  |  | 0.57 |
Diluted EPS | 0.65 |  |  | 0.73 |  |  | 0.62 |  |  | 0.57 |
Dividends declared per share of common stock (d) | 0.41 |  |  | 0.41 |  |  | 0.41 |  |  | 0.41 |
2017 |  |  |  |  |  |  |
Operating revenues | $ | 1,951 |  |  | $ | 1,725 |  |  | $ | 1,845 |  |  | $ | 1,926 |
Operating income (c) | 758 |  |  | 658 |  |  | 736 |  |  | 749 |
Net income (e) | 403 |  |  | 292 |  |  | 355 |  |  | 78 |
Net income available to PPL common shareowners: (b) |  |  |  |  |  |  |  |  |  |  |
Basic EPS | 0.59 |  |  | 0.43 |  |  | 0.52 |  |  | 0.11 |
Diluted EPS | 0.59 |  |  | 0.43 |  |  | 0.51 |  |  | 0.11 |
Dividends declared per share of common stock (d) | 0.395 |  |  | 0.395 |  |  | 0.395 |  |  | 0.395 |
(a) | Quarterly results can vary depending on, among other things, weather. Accordingly, comparisons among quarters of a year may not be indicative of overall trends and changes in operations.
(b) | The sum of the quarterly amounts may not equal annual earnings per share due to changes in the number of common shares outstanding during the year or rounding.
(c) | 2017 reflects the retrospective application of new accounting guidance related to the income statement presentation of net periodic benefit costs adopted by PPL in January 2018. See Note 1 to the Financial Statements for additional information on the adoption of this guidance.
(d) | PPL has paid quarterly cash dividends on its common stock in every year since 1946. Future dividends, declared at the discretion of the Board of Directors, will be dependent upon future earnings, cash flows, financial requirements and other factors.
(e) | Increases in net income for the quarter ended June 30, 2018 compared with June 30, 2017 were primarily due to the favorable impact of foreign currency economic hedges. Increases in net income for the quarter ended December 31, 2018 compared with December 31, 2017 were primarily due to the favorable impact of foreign currency economic hedges in 2018 and the unfavorable impact of U.S. tax reform in 2017.
PPL Electric Utilities Corp [Member] |
Quarterly Financial Information Unaudited [Line Items] |
Quarterly Financial Information (Unaudited) | QUARTERLY FINANCIAL DATA (Unaudited) PPL Electric Utilities Corporation and Subsidiaries (Millions of Dollars)
| For the Quarters Ended (a)
| March 31 |  | June 30 |  | Sept. 30 |  | Dec. 31
2018 |  |  |  |  |  |  |
Operating revenues | $ | 639 |  |  | $ | 517 |  |  | $ | 548 |  |  | $ | 573 |
Operating income | 228 |  |  | 133 |  |  | 178 |  |  | 155 |
Net income | 148 |  |  | 75 |  |  | 111 |  |  | 96 |
2017 |  |  |  |  |  |  |
Operating revenues | $ | 573 |  |  | $ | 500 |  |  | $ | 547 |  |  | $ | 575 |
Operating income | 160 |  |  | 155 |  |  | 189 |  |  | 196 |
Net income | 79 |  |  | 77 |  |  | 95 |  |  | 111 |
(a) | PPL Electric's business is seasonal in nature, with peak sales periods generally occurring in the winter and summer months. Accordingly, comparisons among quarters of a year may not be indicative of overall trends and changes in operations.

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