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Leases (Supplemental Financial Information) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Jan. 01, 2019
Assets |  |
ROU assets | $ 1,658 | $ 1,750
Finance | 926 |
Total lease assets | 2,584 |
Current |  |
Operating | 208 | 205
Finance | 119 |
Noncurrent |  |
Operating lease liabilities | 1,432 | 1,504
Finance | 850 |
Total lease liabilities | 2,609 |
Cash paid for amounts included in the measurement of lease liabilities(a) |  |
Operating cash flows from operating leases | 285 |
Operating cash flows from finance leases | 61 |
Financing cash flows from finance leases | 111 |
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating, lease assets obtained | 194 |
Finance | $ 251 |
Weighted-average remaining lease term (years) |  |
Operating leases | 11 years |
Finance leases | 13 years |
Weighted-average discount rate |  |
Operating leases | 3.90% |
Finance leases | 8.10% |
Duke Energy Carolinas |  |
Assets |  |
ROU assets | $ 123 | 153
Finance | 198 |
Total lease assets | 321 |
Current |  |
Operating | 27 | 28
Finance | 7 |
Noncurrent |  |
Operating lease liabilities | 102 | 127
Finance | 172 |
Total lease liabilities | 308 |
Cash paid for amounts included in the measurement of lease liabilities(a) |  |
Operating cash flows from operating leases | 34 |
Operating cash flows from finance leases | 15 |
Financing cash flows from finance leases | 6 |
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating, lease assets obtained | 44 |
Finance | $ 76 |
Weighted-average remaining lease term (years) |  |
Operating leases | 9 years |
Finance leases | 19 years |
Weighted-average discount rate |  |
Operating leases | 3.50% |
Finance leases | 11.80% |
Progress Energy |  |
Assets |  |
ROU assets | $ 788 | 863
Finance | 443 |
Total lease assets | 1,231 |
Current |  |
Operating | 95 | 96
Finance | 24 |
Noncurrent |  |
Operating lease liabilities | 697 | 766
Finance | 381 |
Total lease liabilities | 1,197 |
Cash paid for amounts included in the measurement of lease liabilities(a) |  |
Operating cash flows from operating leases | 131 |
Operating cash flows from finance leases | 42 |
Financing cash flows from finance leases | 21 |
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating, lease assets obtained | 30 |
Finance | $ 175 |
Weighted-average remaining lease term (years) |  |
Operating leases | 10 years |
Finance leases | 16 years |
Weighted-average discount rate |  |
Operating leases | 3.80% |
Finance leases | 11.90% |
Duke Energy Progress |  |
Assets |  |
ROU assets | $ 387 | 407
Finance | 308 |
Total lease assets | 695 |
Current |  |
Operating | 37 | 35
Finance | 6 |
Noncurrent |  |
Operating lease liabilities | 354 | 371
Finance | 301 |
Total lease liabilities | 698 |
Cash paid for amounts included in the measurement of lease liabilities(a) |  |
Operating cash flows from operating leases | 53 |
Operating cash flows from finance leases | 33 |
Financing cash flows from finance leases | 5 |
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating, lease assets obtained | 30 |
Finance | $ 175 |
Weighted-average remaining lease term (years) |  |
Operating leases | 12 years |
Finance leases | 18 years |
Weighted-average discount rate |  |
Operating leases | 3.90% |
Finance leases | 12.40% |
Duke Energy Florida |  |
Assets |  |
ROU assets | $ 401 | 456
Finance | 135 |
Total lease assets | 536 |
Current |  |
Operating | 58 | 61
Finance | 18 |
Noncurrent |  |
Operating lease liabilities | 343 | 395
Finance | 80 |
Total lease liabilities | 499 |
Cash paid for amounts included in the measurement of lease liabilities(a) |  |
Operating cash flows from operating leases | 78 |
Operating cash flows from finance leases | 9 |
Financing cash flows from finance leases | $ 16 |
Weighted-average remaining lease term (years) |  |
Operating leases | 8 years |
Finance leases | 11 years |
Weighted-average discount rate |  |
Operating leases | 3.80% |
Finance leases | 8.30% |
Duke Energy Ohio |  |
Assets |  |
ROU assets | $ 21 | 23
Total lease assets | 21 |
Current |  |
Operating | 1 | 1
Noncurrent |  |
Operating lease liabilities | 21 | 22
Total lease liabilities | 22 |
Cash paid for amounts included in the measurement of lease liabilities(a) |  |
Operating cash flows from operating leases | 2 |
Financing cash flows from finance leases | $ 1 |
Weighted-average remaining lease term (years) |  |
Operating leases | 17 years |
Weighted-average discount rate |  |
Operating leases | 4.20% |
Finance leases | 0.00% |
Duke Energy Indiana |  |
Assets |  |
ROU assets | $ 57 | 61
Finance | 7 |
Total lease assets | 64 |
Current |  |
Operating | 3 | 4
Noncurrent |  |
Operating lease liabilities | 55 | 58
Finance | 10 |
Total lease liabilities | 68 |
Cash paid for amounts included in the measurement of lease liabilities(a) |  |
Operating cash flows from operating leases | 7 |
Operating cash flows from finance leases | $ 1 |
Weighted-average remaining lease term (years) |  |
Operating leases | 18 years |
Finance leases | 26 years |
Weighted-average discount rate |  |
Operating leases | 4.10% |
Finance leases | 11.90% |
Piedmont |  |
Assets |  |
ROU assets | $ 24 | 26
Total lease assets | 24 |
Current |  |
Operating | 4 | 4
Noncurrent |  |
Operating lease liabilities | 23 | $ 25
Total lease liabilities | 27 |
Cash paid for amounts included in the measurement of lease liabilities(a) |  |
Operating cash flows from operating leases | 7 |
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating, lease assets obtained | $ 1 |
Weighted-average remaining lease term (years) |  |
Operating leases | 6 years |
Weighted-average discount rate |  |
Operating leases | 3.60% |
Finance leases | 0.00% |

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