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v3.19.3.a.u2

Debt and Credit Facilities (Summary of Debt and Related Terms) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |
Weighted-average rate | 3.92% | 4.13%
Unsecured Debt | $ 22,477 | $ 20,955
Secured Debt | 4,537 | 4,297
First mortgage bonds | 27,977 | 25,628
Finance leases | 969 |
Finance leases |  | 941
Tax exempt bonds | 730 | 941
Notes payable and commercial paper | 3,588 | 4,035
Fair value hedge carrying value adjustment | 5 | 5
Unamortized debt discount and premium, net | 1,294 | 1,434
Unamortized debt issuance costs | (316) | (297)
Total debt | 61,261 | 57,939
Short-term notes payable and commercial paper | (3,135) | (3,410)
Current maturities of long-term debt | (3,141) | (3,406)
Total long-term debt | 54,985 | 51,123
Short term obligations classified as long-term debt | $ 937 | $ 937
Unsecured Debt |  |
Debt Instrument [Line Items] |  |
Maturity date range, start | Dec. 31, 2020 | Dec. 31, 2019
Maturity date range, end | Dec. 31, 2078 | Dec. 31, 2078
Weighted-average rate | 4.02% | 4.26%
Secured Debt |  |
Debt Instrument [Line Items] |  |
Maturity date range, start | Dec. 31, 2020 | Dec. 31, 2020
Maturity date range, end | Dec. 31, 2052 | Dec. 31, 2037
Weighted-average rate | 3.30% | 3.69%
First Mortgage |  |
Debt Instrument [Line Items] |  |
Maturity date range, start | Dec. 31, 2020 | Dec. 31, 2019
Maturity date range, end | Dec. 31, 2049 | Dec. 31, 2048
Weighted-average rate | 4.13% | 4.32%
Capital Lease Obligations |  |
Debt Instrument [Line Items] |  |
Maturity date range, start | Dec. 31, 2022 | Dec. 31, 2019
Maturity date range, end | Dec. 31, 2051 | Dec. 31, 2051
Weighted-average rate | 6.60% | 5.06%
Tax Exempt Bonds |  |
Debt Instrument [Line Items] |  |
Maturity date range, start | Dec. 31, 2022 | Dec. 31, 2019
Maturity date range, end | Dec. 31, 2041 | Dec. 31, 2041
Weighted-average rate | 2.90% | 3.40%
Short term obligations classified as long-term debt | $ 312 | $ 312
Commercial Paper |  |
Debt Instrument [Line Items] |  |
Short term obligations classified as long-term debt | $ 625 | $ 625
Notes Payable And Commercial Paper |  |
Debt Instrument [Line Items] |  |
Weighted-average rate | 1.98% | 2.73%
Short term obligations classified as long-term debt | $ 625 | $ 625
Weighted average days to maturity | 14 days | 16 days
Parent Company | Purchase Accounting Adjustments |  |
Debt Instrument [Line Items] |  |
Unamortized debt issuance costs | $ 37 | $ 41
Duke Energy Carolinas |  |
Debt Instrument [Line Items] |  |
Unsecured Debt | 1,150 | 1,150
Secured Debt | 544 | 450
First mortgage bonds | 9,557 | 8,759
Finance leases | 179 |
Finance leases |  | 109
Tax exempt bonds | 243 | 243
Money pool/intercompany borrowings | 329 | 739
Fair value hedge carrying value adjustment | 5 | 5
Unamortized debt discount and premium, net | (23) | (23)
Unamortized debt issuance costs | (55) | (54)
Total debt | 11,929 | 11,378
Short-term money pool/intercompany borrowings | (29) | (439)
Current maturities of long-term debt | (458) | (6)
Total long-term debt | 11,442 | 10,933
Short term obligations classified as long-term debt | 300 | 300
Duke Energy Carolinas | Commercial Paper |  |
Debt Instrument [Line Items] |  |
Short term obligations classified as long-term debt | 300 | 300
Progress Energy |  |
Debt Instrument [Line Items] |  |
Unsecured Debt | 3,650 | 3,800
Secured Debt | 1,722 | 1,703
First mortgage bonds | 13,800 | 13,100
Finance leases | 405 |
Finance leases |  | 251
Tax exempt bonds | 48 | 48
Money pool/intercompany borrowings | 1,970 | 1,385
Unamortized debt discount and premium, net | (29) | (29)
Unamortized debt issuance costs | (111) | (112)
Total debt | 21,455 | 20,146
Short-term money pool/intercompany borrowings | (1,821) | (1,235)
Current maturities of long-term debt | (1,577) | (1,672)
Total long-term debt | 18,057 | 17,239
Duke Energy Progress |  |
Debt Instrument [Line Items] |  |
Unsecured Debt | 700 | 50
Secured Debt | 335 | 300
First mortgage bonds | 7,575 | 7,574
Finance leases | 307 |
Finance leases |  | 137
Tax exempt bonds | 48 | 48
Money pool/intercompany borrowings | 216 | 444
Unamortized debt discount and premium, net | (17) | (15)
Unamortized debt issuance costs | (40) | (40)
Total debt | 9,124 | 8,498
Short-term money pool/intercompany borrowings | (66) | (294)
Current maturities of long-term debt | (1,006) | (603)
Total long-term debt | 8,052 | 7,601
Short term obligations classified as long-term debt | 150 | 150
Duke Energy Progress | Commercial Paper |  |
Debt Instrument [Line Items] |  |
Short term obligations classified as long-term debt | 150 | 150
Duke Energy Progress | Purchase Accounting Adjustments |  |
Debt Instrument [Line Items] |  |
Finance leases | 44 |
Finance leases |  | 63
Duke Energy Florida |  |
Debt Instrument [Line Items] |  |
Unsecured Debt | 350 | 350
Secured Debt | 1,387 | 1,403
First mortgage bonds | 6,225 | 5,526
Finance leases | 98 |
Finance leases |  | 114
Money pool/intercompany borrowings |  | 108
Unamortized debt discount and premium, net | (11) | (11)
Unamortized debt issuance costs | (62) | (61)
Total debt | 7,987 | 7,429
Short-term money pool/intercompany borrowings |  | (108)
Current maturities of long-term debt | (571) | (270)
Total long-term debt | 7,416 | 7,051
Duke Energy Florida | Purchase Accounting Adjustments |  |
Debt Instrument [Line Items] |  |
Finance leases | 419 |
Finance leases |  | 531
Duke Energy Ohio |  |
Debt Instrument [Line Items] |  |
Unsecured Debt | 1,110 | 1,000
First mortgage bonds | 1,449 | 1,099
Finance leases |  | 2
Tax exempt bonds | 77 | 77
Money pool/intercompany borrowings | 337 | 299
Unamortized debt discount and premium, net | (30) | (31)
Unamortized debt issuance costs | (12) | (7)
Total debt | 2,931 | 2,439
Short-term money pool/intercompany borrowings | (312) | (274)
Current maturities of long-term debt |  | (551)
Total long-term debt | 2,619 | 1,614
Short term obligations classified as long-term debt | 52 | 52
Duke Energy Ohio | Tax Exempt Bonds |  |
Debt Instrument [Line Items] |  |
Short term obligations classified as long-term debt | 27 | 27
Duke Energy Ohio | Commercial Paper |  |
Debt Instrument [Line Items] |  |
Short term obligations classified as long-term debt | 25 | 25
Duke Energy Indiana |  |
Debt Instrument [Line Items] |  |
Unsecured Debt | 405 | 408
First mortgage bonds | 3,169 | 2,670
Finance leases | 10 |
Finance leases |  | 10
Tax exempt bonds | 362 | 572
Money pool/intercompany borrowings | 180 | 317
Unamortized debt discount and premium, net | (19) | (8)
Unamortized debt issuance costs | (20) | (20)
Total debt | 4,087 | 3,949
Short-term money pool/intercompany borrowings | (30) | (167)
Current maturities of long-term debt | (503) | (63)
Total long-term debt | 3,554 | 3,719
Short term obligations classified as long-term debt | 435 | 435
Duke Energy Indiana | Tax Exempt Bonds |  |
Debt Instrument [Line Items] |  |
Short term obligations classified as long-term debt | 285 | 285
Duke Energy Indiana | Commercial Paper |  |
Debt Instrument [Line Items] |  |
Short term obligations classified as long-term debt | 150 | 150
Piedmont |  |
Debt Instrument [Line Items] |  |
Unsecured Debt | 2,399 | 2,150
Money pool/intercompany borrowings | 476 | 198
Unamortized debt discount and premium, net | (2) | (1)
Unamortized debt issuance costs | (13) | (11)
Total debt | 2,860 | 2,336
Short-term money pool/intercompany borrowings | (476) | (198)
Current maturities of long-term debt |  | (350)
Total long-term debt | 2,384 | 1,788
Progress Energy | Purchase Accounting Adjustments |  |
Debt Instrument [Line Items] |  |
Unamortized debt discount and premium, net | 1,275 | 1,380
Piedmont | Purchase Accounting Adjustments |  |
Debt Instrument [Line Items] |  |
Unamortized debt discount and premium, net | $ 137 | $ 156

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