XML 97 R56.htm IDEA: XBRL DOCUMENT
v3.22.1

Debt and Credit Facilities (Summary of Debt Issuances) (Details) | Mar. 31, 2022 USD ($)
--- | ---
Debt Instrument [Line Items] |
Debt issuances | $ 2,050,000,000
2.850% March 2022 Notes Due March 2032 |
Debt Instrument [Line Items] |
Interest Rate | 2.85%
Debt issuances | $ 500,000,000
3.550% March 2022 Notes Due March 2052 |
Debt Instrument [Line Items] |
Interest Rate | 3.55%
Debt issuances | $ 650,000,000
3.400% March 2022 Notes Due March 2032 |
Debt Instrument [Line Items] |
Interest Rate | 3.40%
Debt issuances | $ 500,000,000
4.000% March 2022 Notes Due March 2052 |
Debt Instrument [Line Items] |
Interest Rate | 4.00%
Debt issuances | $ 400,000,000
Duke Energy Carolinas |
Debt Instrument [Line Items] |
Debt issuances | 1,150,000,000
Duke Energy Carolinas | 2.850% March 2022 Notes Due March 2032 |
Debt Instrument [Line Items] |
Debt issuances | 500,000,000
Duke Energy Carolinas | 3.550% March 2022 Notes Due March 2052 |
Debt Instrument [Line Items] |
Debt issuances | 650,000,000
Duke Energy Progress |
Debt Instrument [Line Items] |
Debt issuances | 900,000,000
Duke Energy Progress | 3.400% March 2022 Notes Due March 2032 |
Debt Instrument [Line Items] |
Debt issuances | 500,000,000
Duke Energy Progress | 4.000% March 2022 Notes Due March 2052 |
Debt Instrument [Line Items] |
Debt issuances | $ 400,000,000

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=duk_A2850March2022NotesDueMarch2032Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=duk_A3550March2022NotesDueMarch2052Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=duk_A3400March2022NotesDueApril2032Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=duk_A4000March2022NotesDueApril2052Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyCarolinasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=duk_DukeEnergyProgressMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |