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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Millions | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Earnings Reinvested [Member] | Accumulated Other Comprehensive Loss [Member] | Treasury Stock, Common | 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] | 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]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dividends Declared Per Share of Common Stock (in dollars per share) |  | $ 0.415 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period - shares at Dec. 31, 2020 |  |  | 768,907 | [1] |  |  |  |  |  |  | 66,368 | [2] |  |  |  |  | 21,294 | [3] |  |  |  |  | 37,818 | [4] |  |
Balance at beginning of period at Dec. 31, 2020 |  | $ 13,373 | $ 8 |  | $ 12,270 | $ 5,315 | $ (4,220) | $ 0 | $ 5,124 |  | $ 364 |  | $ 3,753 | $ 1,007 | $ 2,948 |  | $ 424 |  | $ 1,923 | $ 601 | $ 3,782 |  | $ 308 |  | $ 2,857 | $ 617
Common stock shares issued | [1] |  | 520 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued |  | 16 |  |  | 16 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  | (13) |  |  | (13) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | (1,840) |  |  |  | (1,840) |  |  | 113 | [5] |  |  |  | 113 | 75 | [6] |  |  |  | 75 | 86 | [7] |  |  |  | 86
Dividends and dividend equivalents | [8] | (320) |  |  |  | (320) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common stock |  |  |  |  |  |  |  |  | (115) |  |  |  |  | (115) | (60) |  |  |  |  | (60) | (56) |  |  |  |  | (56)
Other comprehensive income (loss) |  | 338 |  |  |  |  | 338 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at end of period - shares at Mar. 31, 2021 |  |  | 769,427 | [1] |  |  |  |  |  |  | 66,368 | [2] |  |  |  |  | 21,294 | [3] |  |  |  |  | 37,818 | [4] |  |
Balance at end of period at Mar. 31, 2021 |  | 11,554 | $ 8 |  | 12,273 | 3,155 | (3,882) | 0 | 5,122 |  | $ 364 |  | 3,753 | 1,005 | 2,963 |  | $ 424 |  | 1,923 | 616 | 3,812 |  | $ 308 |  | 2,857 | 647
Balance at beginning of period - shares at Dec. 31, 2020 |  |  | 768,907 | [1] |  |  |  |  |  |  | 66,368 | [2] |  |  |  |  | 21,294 | [3] |  |  |  |  | 37,818 | [4] |  |
Balance at beginning of period at Dec. 31, 2020 |  | $ 13,373 | $ 8 |  | 12,270 | 5,315 | (4,220) | 0 | $ 5,124 |  | $ 364 |  | 3,753 | 1,007 | $ 2,948 |  | $ 424 |  | 1,923 | 601 | $ 3,782 |  | $ 308 |  | 2,857 | 617
Treasury Stock, Value, Acquired |  |  |  |  |  |  |  | 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at end of period - shares at Dec. 31, 2021 |  | 735,112 | 735,112 | [1] |  |  |  |  | 66,368 |  | 66,368 | [2] |  |  | 21,294 |  | 21,294 | [3] |  |  | 37,818 |  | 37,818 | [4] |  |
Balance at end of period at Dec. 31, 2021 |  | $ 13,723 | $ 8 |  | 12,303 | 2,572 | (157) | (1,003) | $ 5,736 |  | $ 364 |  | 4,254 | 1,118 | $ 3,079 |  | $ 424 |  | 1,997 | 658 | $ 3,928 |  | $ 308 |  | 2,957 | 663
Dividends Declared Per Share of Common Stock (in dollars per share) |  | $ 0.200 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock shares issued |  |  | 123 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued |  | $ 4 |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Treasury Stock Reissued |  |  |  |  |  |  |  | $ 16 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  |  |  |  |  |  | 530 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Treasury Stock, Value, Acquired |  | 16 |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  | (8) |  |  | (8) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | 273 |  |  |  | 273 |  |  | 143 | [5] |  |  |  | 143 | 93 | [6] |  |  |  | 93 | 107 | [7] |  |  |  | 107
Dividends and dividend equivalents | [8] | (148) |  |  |  | (148) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared on common stock |  |  |  |  |  |  |  |  | $ (72) |  |  |  |  | (72) | $ (75) |  |  |  |  | (75) | $ (90) |  |  |  |  | (90)
Other comprehensive income (loss) |  | $ 5 |  |  |  |  | 5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at end of period - shares at Mar. 31, 2022 |  | 735,765 | 735,765 |  |  |  |  |  | 66,368 |  | 66,368 | [2] |  |  | 21,294 |  | 21,294 | [3] |  |  | 37,818 |  | 37,818 | [4] |  |
Balance at end of period at Mar. 31, 2022 |  | $ 13,865 | $ 8 |  | $ 12,299 | $ 2,697 | $ (152) | $ (987) | $ 5,767 |  | $ 364 |  | 4,214 | $ 1,189 | $ 3,097 |  | $ 424 |  | $ 1,997 | $ 676 | $ 3,945 |  | $ 308 |  | $ 2,957 | $ 680
Return of Capital to Parent |  |  |  |  |  |  |  |  | $ (40) |  |  |  | $ (40) |  |  |  |  |  |  |  |  |  |  |  |  |
[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 Energy Holdings.
[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 equals comprehensive income.
[7] | Net income equals comprehensive income.
[8] | Dividends declared per share of common stock were $0.200 and $0.415 for the three months ended March 31, 2022 and March 31, 2021.

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