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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Millions | Total | Cumulative Effect, Period of Adoption, Adjustment | Common Stock [Member] | Additional Paid-in Capital [Member] | Earnings Reinvested [Member] | Earnings Reinvested [Member] Cumulative Effect, Period of Adoption, Adjustment | Accumulated Other Comprehensive Loss [Member] | PPL Electric Utilities Corp [Member] | PPL Electric Utilities Corp [Member] Common Stock [Member] | PPL Electric Utilities Corp [Member] Additional Paid-in Capital [Member] | PPL Electric Utilities Corp [Member] Earnings Reinvested [Member] | LG And E And KU Energy LLC [Member] | Louisville Gas And Electric Co [Member] | Louisville Gas And Electric Co [Member] Common Stock [Member] | Louisville Gas And Electric Co [Member] Additional Paid-in Capital [Member] | Louisville Gas And Electric Co [Member] Earnings Reinvested [Member] | Kentucky Utilities Co [Member] | Kentucky Utilities Co [Member] Common Stock [Member] | Kentucky Utilities Co [Member] Additional Paid-in Capital [Member] | Kentucky Utilities Co [Member] Earnings Reinvested [Member]
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Dividends Declared Per Share of Common Stock (in dollars per share) |  | $ 0.8250 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period - shares at Dec. 31, 2018 |  |  |  | 720,323,000 | [1] |  |  |  |  |  |  | 66,368,000 | [2] |  |  |  |  |  |  | 21,294,000 | [3] |  |  |  |  | 37,818,000 | [4] |  |
Balance at beginning of period at Dec. 31, 2018 |  | $ 11,657 |  | $ 7 |  | $ 11,021 | $ 4,593 |  | $ (3,964) | $ 4,461 |  | $ 364 |  | $ 3,158 | $ 939 |  |  | $ 2,687 |  | $ 424 |  | $ 1,795 | $ 468 | $ 3,442 |  | $ 308 |  | $ 2,661 | $ 473
Balance at beginning of period at Dec. 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,723 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares issued | [1] |  |  | 1,517,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued |  | 47 |  |  |  | 47 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  | 1 |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | 907 |  |  |  |  | 907 |  |  | 215 | [5] |  |  |  | 215 | 230 | [6] | 108 | [7] |  |  |  | 108 | 142 | [8] |  |  |  | 142
Capital contributions from parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25 |  |  |  | 25 |  | 68 |  |  |  | 68 |
Dividends and dividend equivalents | [9] | (597) |  |  |  |  | (597) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common stock |  |  |  |  |  |  |  |  |  | (215) |  |  |  |  | (215) |  |  | (71) |  |  |  |  | (71) | (91) |  |  |  |  | (91)
Distributions to member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (137) |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  | (32) |  |  |  |  |  |  | (32) |  |  |  |  |  |  | (2) |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at end of period - shares at Jun. 30, 2019 |  |  |  | 721,840,000 | [1] |  |  |  |  |  |  | 66,368,000 | [2] |  |  |  |  |  |  | 21,294,000 | [3] |  |  |  |  | 37,818,000 | [4] |  |
Balance at end of period at Jun. 30, 2019 |  | $ 11,983 |  | $ 7 |  | 11,069 | 4,903 |  | (3,996) | 4,461 |  | $ 364 |  | 3,158 | 939 |  |  | 2,749 |  | $ 424 |  | 1,820 | 505 | 3,561 |  | $ 308 |  | 2,729 | 524
Balance at end of period at Jun. 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,877 |  |  |  |  |  |  |  |  |  |  |  |  |
Contributions from parent |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  | 25 |  |  |  |  |  | 68 |  |  |  |  |
Proceeds from Contributed Capital |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 63 |  |  |  |  |  |  |  |  |  |  |  |  |
Contributions Made To Limited Liability Company LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 63 |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends Declared Per Share of Common Stock (in dollars per share) |  | $ 0.4125 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period - shares at Mar. 31, 2019 |  |  |  | 721,371,000 |  |  |  |  |  |  |  | 66,368,000 | [2] |  |  |  |  |  |  | 21,294,000 | [3] |  |  |  |  | 37,818,000 | [4] |  |
Balance at beginning of period at Mar. 31, 2019 |  | $ 12,172 |  | $ 7 |  | 11,051 | 4,761 |  | (3,647) | 4,462 |  | $ 364 |  | 3,158 | 940 |  |  | 2,721 |  | $ 424 |  | 1,795 | 502 | 3,512 |  | $ 308 |  | 2,689 | 515
Balance at beginning of period at Mar. 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,791 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares issued |  |  |  | 469,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued |  | 15 |  |  |  | 15 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  | 3 |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | 441 |  |  |  |  | 441 |  |  | 94 | [5] |  |  |  | 94 | 106 | [6] | 44 | [7] |  |  |  | 44 | 61 | [8] |  |  |  | 61
Capital contributions from parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25 |  |  |  | 25 |  | 40 |  |  |  | 40 |
Dividends and dividend equivalents |  | (299) |  |  |  |  | (299) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common stock |  |  |  |  |  |  |  |  |  | (95) |  |  |  |  | (95) |  |  | (41) |  |  |  |  | (41) | (52) |  |  |  |  | (52)
Distributions to member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (81) |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  | (349) |  |  |  |  |  |  | (349) |  |  |  |  |  |  | (2) |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at end of period - shares at Jun. 30, 2019 |  |  |  | 721,840,000 | [1] |  |  |  |  |  |  | 66,368,000 | [2] |  |  |  |  |  |  | 21,294,000 | [3] |  |  |  |  | 37,818,000 | [4] |  |
Balance at end of period at Jun. 30, 2019 |  | $ 11,983 |  | $ 7 |  | 11,069 | 4,903 |  | (3,996) | $ 4,461 |  | $ 364 |  | 3,158 | 939 |  |  | $ 2,749 |  | $ 424 |  | 1,820 | 505 | $ 3,561 |  | $ 308 |  | 2,729 | 524
Balance at end of period at Jun. 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,877 |  |  |  |  |  |  |  |  |  |  |  |  |
Contributions Made To Limited Liability Company LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 63 |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends Declared Per Share of Common Stock (in dollars per share) |  | $ 0.8300 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period - shares at Dec. 31, 2019 |  | 767,233,000 |  | 767,233,000 | [1] |  |  |  |  | 66,368,000 |  | 66,368,000 | [2] |  |  |  |  | 21,294,000 |  | 21,294,000 | [3] |  |  | 37,818,000 |  | 37,818,000 | [4] |  |
Balance at beginning of period at Dec. 31, 2019 |  | $ 12,991 |  | $ 8 |  | 12,214 | 5,127 |  | (4,358) | $ 4,832 |  | $ 364 |  | 3,558 | 910 |  |  | $ 2,762 |  | $ 424 |  | 1,820 | 518 | $ 3,574 |  | $ 308 |  | 2,729 | 537
Balance at beginning of period at Dec. 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,942 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares issued |  | 0 |  | 1,550,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued |  | $ 47 |  |  |  | 47 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  | (6) |  |  |  | (6) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | 898 |  |  |  |  | 898 |  |  | 236 | [5] |  |  |  | 236 | 218 | [6] | 120 | [7] |  |  |  | 120 | 133 | [8] |  |  |  | 133
Capital contributions from parent |  |  |  |  |  |  |  |  |  | 255 |  |  |  | 255 |  |  |  | 53 |  |  |  | 53 |  | 37 |  |  |  | 37 |
Dividends and dividend equivalents | [9] | (640) |  |  |  |  | (640) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common stock |  |  |  |  |  |  |  |  |  | $ (246) |  |  |  |  | (246) |  |  | $ (76) |  |  |  |  | (76) | $ (89) |  |  |  |  | (89)
Distributions to member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (140) |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  | $ (244) |  |  |  |  |  |  | (244) |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at end of period - shares at Jun. 30, 2020 |  | 768,783,000 |  | 768,783,000 |  |  |  |  |  | 66,368,000 |  | 66,368,000 | [2] |  |  |  |  | 21,294,000 |  | 21,294,000 | [3] |  |  | 37,818,000 |  | 37,818,000 | [4] |  |
Balance at end of period at Jun. 30, 2020 |  | $ 13,044 |  | $ 8 |  | 12,255 | 5,383 |  | (4,602) | $ 4,817 |  | $ 364 |  | 3,553 | 900 |  |  | $ 2,859 |  | $ 424 |  | 1,873 | 562 | $ 3,655 |  | $ 308 |  | 2,766 | 581
Balance at end of period at Jun. 30, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,022 |  |  |  |  |  |  |  |  |  |  |  |  |
Contributions from parent |  |  |  |  |  |  |  |  |  | 255 |  |  |  |  |  |  |  | 53 |  |  |  |  |  | 37 |  |  |  |  |
Proceeds from Contributed Capital |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Return of Capital to Parent |  |  |  |  |  |  |  |  |  | (260) |  |  |  | (260) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends Declared Per Share of Common Stock (in dollars per share) |  | $ 0.4150 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period - shares at Mar. 31, 2020 |  |  |  | 768,266,000 |  |  |  |  |  |  |  | 66,368,000 | [2] |  |  |  |  |  |  | 21,294,000 | [3] |  |  |  |  | 37,818,000 | [4] |  |
Balance at beginning of period at Mar. 31, 2020 |  | $ 13,241 |  | $ 8 |  | 12,239 | 5,360 |  | (4,366) | 4,785 |  | $ 364 |  | 3,558 | 863 |  |  | 2,831 |  | $ 424 |  | 1,845 | 562 | 3,654 |  | $ 308 |  | 2,766 | 580
Balance at beginning of period at Mar. 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,026 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares issued |  |  |  | 517,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued |  | 13 |  |  |  | 13 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  | 3 |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income |  | 344 |  |  |  |  | 344 |  |  | 118 | [5] |  |  |  | 118 | 83 |  | 47 | [7] |  |  |  | 47 | 53 | [8] |  |  |  | 53
Capital contributions from parent |  |  |  |  |  |  |  |  |  | 255 |  |  |  | 255 |  |  |  | 28 |  |  |  | 28 |  |  |  |  |  |  |
Dividends and dividend equivalents |  | (321) |  |  |  |  | (321) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common stock |  |  |  |  |  |  |  |  |  | $ (81) |  |  |  |  | (81) |  |  | $ (47) |  |  |  |  | (47) | $ (52) |  |  |  |  | (52)
Distributions to member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (88) |  |  |  |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) |  | $ (236) |  |  |  |  |  |  | (236) |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at end of period - shares at Jun. 30, 2020 |  | 768,783,000 |  | 768,783,000 |  |  |  |  |  | 66,368,000 |  | 66,368,000 | [2] |  |  |  |  | 21,294,000 |  | 21,294,000 | [3] |  |  | 37,818,000 |  | 37,818,000 | [4] |  |
Balance at end of period at Jun. 30, 2020 |  | $ 13,044 |  | $ 8 |  | $ 12,255 | $ 5,383 |  | $ (4,602) | $ 4,817 |  | $ 364 |  | 3,553 | $ 900 |  |  | $ 2,859 |  | $ 424 |  | $ 1,873 | $ 562 | $ 3,655 |  | $ 308 |  | $ 2,766 | $ 581
Balance at end of period at Jun. 30, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,022 |  |  |  |  |  |  |  |  |  |  |  |  |
Return of Capital to Parent |  |  |  |  |  |  |  |  |  | $ (260) |  |  |  | $ (260) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  | $ (2) |  |  |  |  | $ (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Shares in thousands. Each share entitles the holder to one vote on any question presented at any shareowners' meeting.
[2] | Shares in thousands. All common shares of PPL Electric stock are owned by PPL.
[3] | Shares in thousands. All common shares of LG&E stock are owned by LKE.
[4] | Shares in thousands. All common shares of KU stock are owned by LKE.
[5] | Net income equals comprehensive income.
[6] | Net income approximates comprehensive income.
[7] | Net income equals comprehensive income.
[8] | Net income equals comprehensive income.
[9] | Dividends declared per share of common stock were $0.4150 and $0.8300 for the three and six months ended June 30, 2020 and $0.4125 and $0.8250 for the three and six months ended June 30, 2019.

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