Piedmont Natural Gas [Member]

$ 6,070,000,000

$ 9,127,000,000

April 2017 Debt Issuance, 3.364% Coupon [Member]

Facility Size

$ 4,900,000,000

April 2017 Debt Issuance, 3.364% Coupon [Member] | Unsecured Debt [Member]

3.364%

June 2017 Debt Issuance, 2.100% Coupon [Member]

$ 420,000,000

June 2017 Debt Issuance, 2.100% Coupon [Member] | Unsecured Debt [Member]

2.10%

August 2017 Debt Issuance 2.40% Coupon [Member]

$ 330,000,000

August 2017 Debt Issuance 2.40% Coupon [Member] | Unsecured Debt [Member]

2.40%

August 2017 Debt Issuance, 3.150% Coupon [Member]

$ 500,000,000

August 2017 Debt Issuance, 3.150% Coupon [Member] | Unsecured Debt [Member]

3.15%

August 2017 Debt Issuance, 3.950% Coupon [Member]

$ 750,000,000

August 2017 Debt Issuance, 3.950% Coupon [Member] | Unsecured Debt [Member]

3.95%

December 2017 Debt Issuance, 2.100% Coupon [Member]

$ 500,000,000

December 2017 Debt Issuance, 2.100% Coupon [Member] | Unsecured Debt [Member]

2.10%

February 2017 Debt Issuance, 4.120% Coupon [Member]

$ 400,000,000

February 2017 Debt Issuance, 4.120% Coupon [Member] | Secured Debt [Member]

4.12%

August 2017 Debt Issuance, 4.110% Coupon [Member]

$ 587,000,000

August 2017 Debt Issuance, 4.110% Coupon [Member] | Secured Debt [Member]

4.11%

January 2017 Debt Issuance, 1.850% Coupon [Member]

$ 233,000,000

January 2017 Debt Issuance, 1.850% Coupon [Member] | First Mortgage Bonds [Member]

1.85%

January 2017 Debt Issuance, 3.200% Coupon [Member]

$ 250,000,000

January 2017 Debt Issuance, 3.200% Coupon [Member] | First Mortgage Bonds [Member]

3.20%

March 2017 Debt Issuance, 3.700% Coupon [Member]

$ 650,000,000

March 2017 Debt Issuance, 3.700% Coupon [Member] | First Mortgage Bonds [Member]

3.70%

September 2017 Debt Issuance, Floating Rate [Member]

$ 100,000,000

September 2017 Debt Issuance, Floating Rate [Member] | First Mortgage Bonds [Member]

1.50%

September 2017 Debt Issuance, 3.600% Coupon [Member]

$ 300,000,000

September 2017 Debt Issuance, 3.600% Coupon [Member] | First Mortgage Bonds [Member]

3.60%

November 2017 Debt Issuance, 3.700% Coupon [Member]

$ 500,000,000

November 2017 Debt Issuance, 3.700% Coupon [Member] | First Mortgage Bonds [Member]

3.70%

April 2016 Debt Maturing April 2023 [Member]

$ 550,000,000

April 2016 Debt Maturing April 2023 [Member] | Unsecured Debt [Member]

2.875%

August 2016 Debt Maturing September 2021 [Member]

$ 350,000,000

August 2016 Debt Maturing September 2021 [Member] | Unsecured Debt [Member]

1.80%

August 2016 Debt Maturing September 2026 [Member]

$ 750,000,000

August 2016 Debt Maturing September 2026 [Member] | Unsecured Debt [Member]

2.65%

August 2016 Debt Maturing September 2046 [Member]

$ 1,500,000,000

August 2016 Debt Maturing September 2046 [Member] | Unsecured Debt [Member]

3.75%

June 2016 Debt Maturing March 2020 [Member]

$ 1,500,000,000

June 2016 Debt Maturing March 2020 [Member] | Secured Debt [Member]

1.196%

June 2016 Debt Maturing September 2022 [Member]

$ 183,000,000

June 2016 Debt Maturing September 2022 [Member] | Secured Debt [Member]

1.731%

June 2016 Debt Maturing September 2029 [Member]

$ 150,000,000

June 2016 Debt Maturing September 2029 [Member] | Secured Debt [Member]

2.538%

June 2016 Debt Maturing March 2033 [Member]

$ 436,000,000

June 2016 Debt Maturing March 2033 [Member] | Secured Debt [Member]

2.858%

June 2016 Debt Maturing September 2036 [Member]

$ 250,000,000

June 2016 Debt Maturing September 2036 [Member] | Secured Debt [Member]

3.112%

Solar Facilities Financing [Member]

$ 275,000,000

Debt Instrument, Interest Rate, Increase (Decrease)

Fixed credit spread

1.75%

0.125%

August 2016 Debt Tranche A Maturing June 2034 [Member]

August 2016 Debt Tranche A Maturing June 2034 [Member] | Secured Debt [Member]

2.747%

August 2016 Debt Tranche A Maturing June 2034 [Member] | Swap [Member]

$ 228,000,000

Derivative, Fixed Interest Rate

1.81%

August 2016 Debt Tranche B Maturing June 2020 [Member]

August 2016 Debt Tranche B Maturing June 2020 [Member] | Secured Debt [Member]

2.747%

August 2016 Debt Tranche B Maturing June 2020 [Member] | Swap [Member]

$ 105,000,000

Derivative, Fixed Interest Rate

1.38%

March 2016 Debt Maturing March 2023 [Member]

March 2016 Debt Maturing March 2023 [Member] | First Mortgage Bonds [Member]

2.50%

March 2016 Debt Maturing March 2046 [Member]

$ 500,000,000

March 2016 Debt Maturing March 2046 [Member] | First Mortgage Bonds [Member]

3.875%

May 2016 Debt 2 Maturing May 2046 [Member]

$ 500,000,000

May 2016 Debt 2 Maturing May 2046 [Member] | First Mortgage Bonds [Member]

3.75%

June 2016 Debt Maturing June 2046 [Member]

$ 500,000,000

June 2016 Debt Maturing June 2046 [Member] | First Mortgage Bonds [Member]

3.70%

September 2016 Debt Maturing October 2046 3.4% [Member]

$ 250,000,000

September 2016 Debt Maturing October 2046 3.4% [Member] | First Mortgage Bonds [Member]

3.40%

September 2016 Debt Maturing October 2046 3.7%[Member]

$ 600,000,000

September 2016 Debt Maturing October 2046 3.7%[Member] | First Mortgage Bonds [Member]

3.70%

November 2016 Debt Maturing December 2026 [Member]

$ 450,000,000

November 2016 Debt Maturing December 2026 [Member] | First Mortgage Bonds [Member]

2.95%

$ 600,000,000

Parent Company [Member]

Parent Company [Member] | April 2017 Debt Issuance, 3.364% Coupon [Member]

2,500,000,000

4,100,000,000

Parent Company [Member] | April 2017 Debt Issuance, 3.364% Coupon [Member] | Unsecured Debt [Member]

400,000,000

Parent Company [Member] | June 2017 Debt Issuance, 2.100% Coupon [Member] | Unsecured Debt [Member]

420,000,000

Parent Company [Member] | August 2017 Debt Issuance 2.40% Coupon [Member] | Unsecured Debt [Member]

330,000,000

Parent Company [Member] | August 2017 Debt Issuance, 3.150% Coupon [Member] | Unsecured Debt [Member]

500,000,000

Parent Company [Member] | August 2017 Debt Issuance, 3.950% Coupon [Member] | Unsecured Debt [Member]

750,000,000

Parent Company [Member] | August 2017 Debt Issuances [Member]

500,000,000

Parent Company [Member] | April 2016 Debt Maturing April 2023 [Member] | Unsecured Debt [Member]

700,000,000

Parent Company [Member] | August 2016 Debt Maturing September 2021 [Member] | Unsecured Debt [Member]

350,000,000

Parent Company [Member] | August 2016 Debt Maturing September 2026 [Member] | Unsecured Debt [Member]

750,000,000

Parent Company [Member] | August 2016 Debt Maturing September 2046 [Member] | Unsecured Debt [Member]

1,500,000,000

Duke Energy Carolinas [Member]

1,500,000,000

Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid

550,000,000

1,600,000,000

625,000,000

2,000,000,000

$ 401,000,000

Duke Energy Carolinas [Member] | November 2017 Debt Issuance, 3.700% Coupon [Member]

Duke Energy Carolinas [Member] | November 2017 Debt Issuance, 3.700% Coupon [Member] | First Mortgage Bonds [Member]

400,000,000

Duke Energy Carolinas [Member] | March 2016 Debt Maturing March 2023 [Member] | First Mortgage Bonds [Member]

550,000,000

Duke Energy Carolinas [Member] | March 2016 Debt Maturing March 2046 [Member] | First Mortgage Bonds [Member]

500,000,000

Duke Energy Carolinas [Member] | November 2016 Debt Maturing December 2026 [Member]

500,000,000

Duke Energy Carolinas [Member] | November 2016 Debt Maturing December 2026 [Member] | First Mortgage Bonds [Member]

350,000,000

Duke Energy Progress [Member]

600,000,000

Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid

800,000,000

450,000,000

124,000,000

300,000,000

Duke Energy Progress [Member] | September 2017 Debt Issuances [Member]

Duke Energy Progress [Member] | September 2017 Debt Issuance, Floating Rate [Member] | First Mortgage Bonds [Member]

200,000,000

Duke Energy Progress [Member] | September 2017 Debt Issuance, 3.600% Coupon [Member] | First Mortgage Bonds [Member]

300,000,000

Duke Energy Progress [Member] | September 2016 Debt Maturing October 2046 3.7%[Member] | First Mortgage Bonds [Member]

500,000,000

Duke Energy Florida [Member]

450,000,000

Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid

1,300,000,000

1,894,000,000

775,000,000

$ 350,000,000

Duke Energy Florida [Member] | December 2017 Debt Issuance, 2.100% Coupon [Member] | Unsecured Debt [Member]

Duke Energy Florida [Member] | January 2017 Issuance First Mortgage Bonds [Member]

400,000,000

Duke Energy Florida [Member] | January 2017 Debt Issuance, 1.850% Coupon [Member] | First Mortgage Bonds [Member]

250,000,000

Duke Energy Florida [Member] | January 2017 Debt Issuance, 3.200% Coupon [Member] | First Mortgage Bonds [Member]

250,000,000

Duke Energy Florida [Member] | June 2016 Debt Maturing March 2020 [Member] | Secured Debt [Member]

650,000,000

Duke Energy Florida [Member] | June 2016 Debt Maturing September 2022 [Member] | Secured Debt [Member]

183,000,000

Duke Energy Florida [Member] | June 2016 Debt Maturing September 2029 [Member] | Secured Debt [Member]

150,000,000

Duke Energy Florida [Member] | June 2016 Debt Maturing March 2033 [Member] | Secured Debt [Member]

436,000,000

Duke Energy Florida [Member] | June 2016 Debt Maturing September 2036 [Member] | Secured Debt [Member]

250,000,000

Duke Energy Florida [Member] | September 2016 Debt Maturing October 2046 3.4% [Member] | First Mortgage Bonds [Member]

275,000,000

Duke Energy Florida [Member] | DEFPF [Member] | Secured Debt [Member]

600,000,000

Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid

649,000,000

Duke Energy Ohio [Member]

Duke Energy Ohio [Member] | March 2017 Debt Issuance, 3.700% Coupon [Member] | First Mortgage Bonds [Member]

100,000,000

250,000,000

Duke Energy Ohio [Member] | June 2016 Debt Maturing June 2046 [Member] | First Mortgage Bonds [Member]

100,000,000

Duke Energy Indiana [Member]

250,000,000

Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid

500,000,000

$ 300,000,000

149,000,000

Duke Energy Indiana [Member] | May 2016 Debt Maturing May 2046 [Member]

Duke Energy Indiana [Member] | May 2016 Debt 2 Maturing May 2046 [Member]

325,000,000

Duke Energy Indiana [Member] | May 2016 Debt 2 Maturing May 2046 [Member] | First Mortgage Bonds [Member]

150,000,000

Piedmont Natural Gas [Member] | July 2016 Debt Issuance 3.640% Coupon [Member]

$ 500,000,000

$ 300,000,000

Piedmont Natural Gas [Member] | July 2016 Debt Issuance 3.640% Coupon [Member] | Debt Instrument, Redemption, Period One [Member]

3.64%

Fixed credit spread

0.25%

Debt Instrument, Redemption Period, Start Date

Jul. 28, 2016

Debt Instrument, Redemption Period, End Date

Apr. 30, 2046

Debt Instrument, Redemption Price, Percentage

100.00%

Piedmont Natural Gas [Member] | July 2016 Debt Issuance 3.640% Coupon [Member] | Debt Instrument, Redemption, Period Two [Member]