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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Unaudited [Line Items] |
Quarterly Financial Information (Unaudited) | QUARTERLY FINANCIAL, COMMON STOCK PRICE 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
2017 |  |  |  |  |  |  |
Operating revenues | $ | 1,951 |  |  | $ | 1,725 |  |  | $ | 1,845 |  |  | $ | 1,926 |
Operating income | 796 |  |  | 702 |  |  | 777 |  |  | 793 |
Net income | 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 (c) | 0.3950 |  |  | 0.3950 |  |  | 0.3950 |  |  | 0.3950 |
Price per common share: |  |  |  |  |  |  |  |  |  |  |
High | $ | 37.70 |  |  | $ | 40.06 |  |  | $ | 39.83 |  |  | $ | 38.37 |
Low | 33.94 |  |  | 37.11 |  |  | 37.36 |  |  | 30.76 |
2016 |  |  |  |  |  |  |
Operating revenues | $ | 2,011 |  |  | $ | 1,785 |  |  | $ | 1,889 |  |  | $ | 1,832 |
Operating income | 823 |  |  | 725 |  |  | 786 |  |  | 714 |
Net income | 481 |  |  | 483 |  |  | 473 |  |  | 465 |
Net income available to PPL common shareowners: (b) |  |  |  |  |  |  |  |  |  |  |
Basic EPS | 0.71 |  |  | 0.71 |  |  | 0.70 |  |  | 0.68 |
Diluted EPS | 0.71 |  |  | 0.71 |  |  | 0.69 |  |  | 0.68 |
Dividends declared per share of common stock (c) | 0.38 |  |  | 0.38 |  |  | 0.38 |  |  | 0.38 |
Price per common share: |  |  |  |  |  |  |  |  |  |  |
High | $ | 38.07 |  |  | $ | 39.68 |  |  | $ | 37.71 |  |  | $ | 34.74 |
Low | 32.80 |  |  | 36.27 |  |  | 33.63 |  |  | 32.19 |
(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) | 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.
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
2017 |  |  |  |  |  |  |
Operating revenues | $ | 573 |  |  | $ | 500 |  |  | $ | 547 |  |  | $ | 575 |
Operating income | 159 |  |  | 156 |  |  | 189 |  |  | 197 |
Net income | 79 |  |  | 77 |  |  | 95 |  |  | 111 |
2016 |  |  |  |  |  |  |
Operating revenues | $ | 585 |  |  | $ | 495 |  |  | $ | 539 |  |  | $ | 537 |
Operating income | 180 |  |  | 154 |  |  | 176 |  |  | 154 |
Net income | 94 |  |  | 79 |  |  | 90 |  |  | 77 |
(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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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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