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Income Taxes (Deferred Income Taxes) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred Tax Assets, Gross [Abstract] |  |
Deferred credits and other liabilities | $ 327 | $ 348
Lease obligations | 418 | 405
Pension, post-retirement and other employee benefits | 65 | 192
Progress Energy merger purchase accounting adjustments | 260 | 301
Tax credits and NOL carryforwards | 4,489 | 4,426
Other | 102 | 106
Valuation allowance | (544) | (519)
Total deferred income tax assets | 5,117 | 5,259
Deferred Tax Liabilities, Gross [Abstract] |  |
Investments and other assets | (1,812) | (1,671)
Accelerated depreciation rates | (11,969) | (11,478)
Regulatory assets and deferred debits, net | (1,892) | (2,074)
Total deferred income tax liabilities | (15,673) | (15,223)
Net deferred income tax liabilities | (10,556) | (9,964)
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 4,489 | 4,426
Valuation allowance | 544 | 519
General Business Credits |  |
Deferred Tax Assets, Gross [Abstract] |  |
Tax credits and NOL carryforwards | 2,388 |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 2,388 |
Foreign Tax Credit |  |
Deferred Tax Assets, Gross [Abstract] |  |
Valuation allowance | (389) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Valuation allowance | 389 |
Foreign Tax Credit | Federal |  |
Deferred Tax Assets, Gross [Abstract] |  |
Tax credits and NOL carryforwards | 1,155 |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 1,155 |
State Carryforward And Credits | State |  |
Deferred Tax Assets, Gross [Abstract] |  |
Tax credits and NOL carryforwards | 390 |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 390 |
Corporate AMT Credit Cards |  |
Deferred Tax Assets, Gross [Abstract] |  |
Tax credits and NOL carryforwards | 278 |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 278 |
Federal Capital Loss |  |
Deferred Tax Assets, Gross [Abstract] |  |
Valuation allowance | (29) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Valuation allowance | 29 |
Federal Capital Loss | Federal |  |
Deferred Tax Assets, Gross [Abstract] |  |
Tax credits and NOL carryforwards | 73 |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 73 |
NOL Carryforwards | Federal |  |
Deferred Tax Assets, Gross [Abstract] |  |
Tax credits and NOL carryforwards | 193 |
Valuation allowance | (4) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 193 |
Valuation allowance | 4 |
NOL Carryforwards | State |  |
Deferred Tax Assets, Gross [Abstract] |  |
Valuation allowance | (110) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Valuation allowance | 110 |
NOL Carryforwards | Foreign |  |
Deferred Tax Assets, Gross [Abstract] |  |
Tax credits and NOL carryforwards | 12 |
Valuation allowance | (12) |
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 12 |
Valuation allowance | 12 |
Duke Energy Carolinas |  |
Deferred Tax Assets, Gross [Abstract] |  |
Deferred credits and other liabilities | 194 | 170
Lease obligations | 86 | 89
Pension, post-retirement and other employee benefits | (41) | (1)
Tax credits and NOL carryforwards | 445 | 444
Other | 29 | 18
Total deferred income tax assets | 713 | 720
Deferred Tax Liabilities, Gross [Abstract] |  |
Investments and other assets | (1,213) | (983)
Accelerated depreciation rates | (3,411) | (3,410)
Regulatory assets and deferred debits, net | (468) | (480)
Total deferred income tax liabilities | (5,092) | (4,873)
Net deferred income tax liabilities | (4,379) | (4,153)
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 445 | 444
Progress Energy |  |
Deferred Tax Assets, Gross [Abstract] |  |
Deferred credits and other liabilities | 77 | 117
Lease obligations | 256 | 263
Pension, post-retirement and other employee benefits | (22) | 12
Tax credits and NOL carryforwards | 686 | 618
Other | 22 | 22
Total deferred income tax assets | 1,019 | 1,032
Deferred Tax Liabilities, Gross [Abstract] |  |
Investments and other assets | (596) | (521)
Accelerated depreciation rates | (4,557) | (4,358)
Regulatory assets and deferred debits, net | (1,063) | (1,300)
Total deferred income tax liabilities | (6,216) | (6,179)
Net deferred income tax liabilities | (5,197) | (5,147)
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 686 | 618
Duke Energy Progress |  |
Deferred Tax Assets, Gross [Abstract] |  |
Deferred credits and other liabilities | 21 | 33
Lease obligations | 179 | 197
Pension, post-retirement and other employee benefits | (1) | 18
Tax credits and NOL carryforwards | 230 | 167
Other | 12 | 12
Total deferred income tax assets | 441 | 427
Deferred Tax Liabilities, Gross [Abstract] |  |
Investments and other assets | (520) | (432)
Accelerated depreciation rates | (1,823) | (1,844)
Regulatory assets and deferred debits, net | (658) | (628)
Total deferred income tax liabilities | (3,001) | (2,904)
Net deferred income tax liabilities | (2,560) | (2,477)
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 230 | 167
Duke Energy Florida |  |
Deferred Tax Assets, Gross [Abstract] |  |
Deferred credits and other liabilities | 56 | 83
Lease obligations | 77 | 65
Pension, post-retirement and other employee benefits | (25) | (10)
Tax credits and NOL carryforwards | 425 | 412
Other | 8 | 10
Total deferred income tax assets | 541 | 560
Deferred Tax Liabilities, Gross [Abstract] |  |
Investments and other assets | (91) | (102)
Accelerated depreciation rates | (2,778) | (2,576)
Regulatory assets and deferred debits, net | (405) | (671)
Total deferred income tax liabilities | (3,274) | (3,349)
Net deferred income tax liabilities | (2,733) | (2,789)
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 425 | 412
Duke Energy Ohio |  |
Deferred Tax Assets, Gross [Abstract] |  |
Deferred credits and other liabilities | 13 | 12
Lease obligations | 4 | 4
Pension, post-retirement and other employee benefits | 5 | 9
Tax credits and NOL carryforwards | 44 | 20
Regulatory liabilities and deferred credits |  | 3
Investments and other assets |  | 3
Other | 5 | 5
Total deferred income tax assets | 71 | 56
Deferred Tax Liabilities, Gross [Abstract] |  |
Accelerated depreciation rates | (1,314) | (1,192)
Regulatory assets and deferred debits, net | (29) |
Total deferred income tax liabilities | (1,343) | (1,192)
Net deferred income tax liabilities | (1,272) | (1,136)
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 44 | 20
Duke Energy Indiana |  |
Deferred Tax Assets, Gross [Abstract] |  |
Deferred credits and other liabilities | 18 | 23
Lease obligations | 15 | 15
Pension, post-retirement and other employee benefits | 2 | 10
Tax credits and NOL carryforwards | 154 | 208
Regulatory liabilities and deferred credits | 47 | 61
Investments and other assets | 1 |
Other | 5 | 2
Total deferred income tax assets | 242 | 319
Deferred Tax Liabilities, Gross [Abstract] |  |
Investments and other assets |  | (12)
Accelerated depreciation rates | (1,678) | (1,606)
Total deferred income tax liabilities | (1,678) | (1,618)
Net deferred income tax liabilities | (1,436) | (1,299)
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | 154 | 208
Piedmont |  |
Deferred Tax Assets, Gross [Abstract] |  |
Deferred credits and other liabilities | 42 | 24
Lease obligations | 3 | 3
Pension, post-retirement and other employee benefits | (5) | (2)
Tax credits and NOL carryforwards | 50 | 37
Other | 9 | 9
Total deferred income tax assets | 99 | 71
Deferred Tax Liabilities, Gross [Abstract] |  |
Investments and other assets | (37) | (28)
Accelerated depreciation rates | (944) | (892)
Regulatory assets and deferred debits, net | (51) | (21)
Total deferred income tax liabilities | (1,032) | (941)
Net deferred income tax liabilities | (933) | (870)
Components and Expiration Dates of Tax Credits and NOL Carryforwards [Abstract] |  |
Tax credits and NOL carryforwards | $ 50 | $ 37

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