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SCHEDULE I - CONDENSED UNCONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Details) - USD ($) shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Operating Revenues [Abstract] |  |  |
Operating Revenues | $ 7,607 | $ 7,769 | $ 7,785
Operating Expenses [Abstract] |  |  |
Other operation and maintenance | 1,944 | 1,985 | 1,983
Total Operating Expenses | 4,804 | 4,929 | 4,933
Operating Loss | 2,803 | 2,840 | 2,852
Other Income (Expense) - net [Abstract] |  |  |
Other Income (Expense) - net | 169 | 309 | 396
Interest Expense | 1,001 | 994 | 963
Income Before Income Taxes | 1,971 | 2,155 | 2,285
Income Taxes | 502 | 409 | 458
Net income | 1,469 | 1,746 | 1,827
Total other comprehensive income (loss) | 138 | (394) | (491)
Comprehensive Income Attributable to PPL Shareowners | $ 1,607 | $ 1,352 | $ 1,336
Net Income Available to PPL Corporation Common Shareowners: (in dollars per share) |  |  |
Basic (in dollars per share) | $ 1.91 | $ 2.39 | $ 2.59
Diluted (in dollars per share) | $ 1.91 | $ 2.37 | $ 2.58
Weighted-Average Shares of Common Stock Outstanding (in thousands) |  |  |
Basic | 768,590 | 728,512 | 704,439
Diluted | 769,384 | 736,754 | 708,619
LG&E and KU Energy LLC Unconsolidated [Member] |  |  |
Other Income (Expense) - net [Abstract] |  |  |
Equity in earnings of subsidiaries | $ 490 | $ 477 | $ 470
Interest Income from Affiliate | 12 | 28 | 25
Other Income (Expense) - net | 502 | 505 | 495
Interest Expense | 23 | 30 | 29
Interest Expense with Affiliates | 37 | 32 | 28
Income Before Income Taxes | 442 | 443 | 438
Income Taxes | (8) | (25) | (7)
Net income | 450 | 468 | 445
Total other comprehensive income (loss) | 7 | (4) | 17
Comprehensive Income Attributable to PPL Shareowners | $ 457 | $ 464 | $ 462

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