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Leases (Supplemental Financial Information) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Assets |  |
Operating lease right-of-use assets, net | $ 1,266 | $ 1,524
Net property, plant and equipment | 950 | 797
Total lease assets | 2,216 | 2,321
Current |  |
Operating | 187 | 177
Finance | 151 | 129
Noncurrent |  |
Operating | 1,074 | 1,340
Finance | 764 | 716
Total lease liabilities | 2,176 | 2,362
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | 245 | 271
Operating cash flows from finance leases | 55 | 61
Financing cash flows from finance leases | 219 | 119
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating | 182 | 116
Finance | $ 322 | $ 125
Weighted average remaining lease term (years) |  |
Operating leases | 9 years | 10 years
Finance leases | 10 years | 13 years
Weighted-average discount rate |  |
Operating leases | 3.60% | 3.80%
Finance leases | 7.30% | 8.40%
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Public utilities, property, plant and equipment, net | Public utilities, property, plant and equipment, net
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] | Current Liabilities: Other | Current Liabilities: Other
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] | Current maturities of long-term debt | Current maturities of long-term debt
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Long-Term Debt | Long-Term Debt
Duke Energy Carolinas |  |
Assets |  |
Operating lease right-of-use assets, net | $ 92 | $ 110
Net property, plant and equipment | 302 | 312
Total lease assets | 394 | 422
Current |  |
Operating | 22 | 20
Finance | 6 | 5
Noncurrent |  |
Operating | 78 | 97
Finance | 283 | 289
Total lease liabilities | 389 | 411
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | 25 | 31
Operating cash flows from finance leases | 33 | 30
Financing cash flows from finance leases | 5 | 8
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating | $ 4 | 17
Finance |  | $ 125
Weighted average remaining lease term (years) |  |
Operating leases | 9 years | 9 years
Finance leases | 18 years | 19 years
Weighted-average discount rate |  |
Operating leases | 3.50% | 3.40%
Finance leases | 11.60% | 11.60%
Progress Energy |  |
Assets |  |
Operating lease right-of-use assets, net | $ 691 | $ 690
Net property, plant and equipment | 729 | 416
Total lease assets | 1,420 | 1,106
Current |  |
Operating | 94 | 73
Finance | 61 | 26
Noncurrent |  |
Operating | 606 | 623
Finance | 629 | 351
Total lease liabilities | 1,390 | 1,073
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | 117 | 124
Operating cash flows from finance leases | 48 | 44
Financing cash flows from finance leases | 37 | $ 24
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating | 99 |
Finance | $ 322 |
Weighted average remaining lease term (years) |  |
Operating leases | 8 years | 10 years
Finance leases | 13 years | 15 years
Weighted-average discount rate |  |
Operating leases | 3.60% | 3.80%
Finance leases | 9.00% | 11.90%
Duke Energy Progress |  |
Assets |  |
Operating lease right-of-use assets, net | $ 389 | $ 346
Net property, plant and equipment | 627 | 297
Total lease assets | 1,016 | 643
Current |  |
Operating | 50 | 31
Finance | 41 | 7
Noncurrent |  |
Operating | 350 | 323
Finance | 588 | 289
Total lease liabilities | 1,029 | 650
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | 62 | 52
Operating cash flows from finance leases | 42 | 37
Financing cash flows from finance leases | 18 | $ 6
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating | 99 |
Finance | $ 322 |
Weighted average remaining lease term (years) |  |
Operating leases | 10 years | 12 years
Finance leases | 13 years | 17 years
Weighted-average discount rate |  |
Operating leases | 3.40% | 3.90%
Finance leases | 9.00% | 12.40%
Duke Energy Florida |  |
Assets |  |
Operating lease right-of-use assets, net | $ 302 | $ 344
Net property, plant and equipment | 102 | 119
Total lease assets | 404 | 463
Current |  |
Operating | 44 | 42
Finance | 20 | 19
Noncurrent |  |
Operating | 256 | 300
Finance | 41 | 62
Total lease liabilities | 361 | 423
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | 55 | 72
Operating cash flows from finance leases | 6 | 7
Financing cash flows from finance leases | $ 19 | $ 18
Weighted average remaining lease term (years) |  |
Operating leases | 7 years | 8 years
Finance leases | 11 years | 11 years
Weighted-average discount rate |  |
Operating leases | 3.80% | 3.80%
Finance leases | 8.20% | 8.20%
Duke Energy Ohio |  |
Assets |  |
Operating lease right-of-use assets, net | $ 19 | $ 20
Total lease assets | 19 | 20
Current |  |
Operating | 1 | 1
Noncurrent |  |
Operating | 18 | 20
Total lease liabilities | 19 | 21
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | $ 2 | $ 2
Weighted average remaining lease term (years) |  |
Operating leases | 16 years | 17 years
Weighted-average discount rate |  |
Operating leases | 4.20% | 4.20%
Duke Energy Indiana |  |
Assets |  |
Operating lease right-of-use assets, net | $ 53 | $ 55
Net property, plant and equipment | 7 | 7
Total lease assets | 60 | 62
Current |  |
Operating | 4 | 3
Noncurrent |  |
Operating | 50 | 53
Finance | 10 | 10
Total lease liabilities | 64 | 66
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | 6 | 6
Financing cash flows from finance leases | $ 1 | 1
Lease assets obtained in exchange for new lease liabilities (non-cash) |  |
Operating |  | $ 1
Weighted average remaining lease term (years) |  |
Operating leases | 16 years | 18 years
Finance leases | 24 years | 25 years
Weighted-average discount rate |  |
Operating leases | 4.10% | 4.20%
Finance leases | 11.90% | 11.90%
Piedmont |  |
Assets |  |
Operating lease right-of-use assets, net | $ 16 | $ 20
Total lease assets | 16 | 20
Current |  |
Operating | 5 | 4
Noncurrent |  |
Operating | 14 | 19
Total lease liabilities | 19 | 23
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | $ 5 | $ 5
Weighted average remaining lease term (years) |  |
Operating leases | 4 years | 5 years
Weighted-average discount rate |  |
Operating leases | 3.60% | 3.60%

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