Organization and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2019

Organization And Basis Of Presentation [Line Items]

Schedule of Cash, Cash Equivalents and Restricted Cash

The following table presents the components of cash, cash equivalents and restricted cash included in the Condensed Consolidated Balance Sheets.

	June 30, 2019						December 31, 2018
					Duke						Duke
	Duke		Progress		Energy		Duke		Progress		Energy
	Energy		Energy		Florida		Energy		Energy		Florida
Current Assets
Cash and cash equivalents	$	336	$	51	$	16	$	442	$	67	$	36
Other	106		31		31		141		39		39
Other Noncurrent Assets
Other	39		38		—		8		6		—
Total cash, cash equivalents and restricted cash	$	481	$	120	$	47	$	591	$	112	$	75

Schedule of Utility Inventory

The components of inventory are presented in the tables below.

	June 30, 2019
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Materials and supplies	$	2,252	$	749	$	1,036	$	709	$	327	$	76	$	323	$	3
Coal	624		235		234		160		74		17		139		—
Natural gas, oil and other fuel	313		41		210		111		98		31		1		30
Total inventory	$	3,189	$	1,025	$	1,480	$	980	$	499	$	124	$	463	$	33

	December 31, 2018
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Materials and supplies	$	2,238	$	731	$	1,049	$	734	$	315	$	84	$	312	$	2
Coal	491		175		192		106		86		14		109		—
Natural gas, oil and other fuel	355		42		218		114		103		28		1		68
Total inventory	$	3,084	$	948	$	1,459	$	954	$	504	$	126	$	422	$	70

Schedule of New Accounting Pronouncements

Leases. In February 2016, the FASB issued revised accounting guidance for leases. The core principle of this guidance is that a lessee should recognize the assets and liabilities that arise from leases on the balance sheet. This resulted in a material impact on the presentation for the statement of financial position of the Duke Energy Registrants for the period ended June 30, 2019, and an immaterial impact to the Duke Energy Registrants' results of operations for the three and six months ended June 30, 2019, and cash flows for the six months ended June 30, 2019.

Duke Energy elected the modified retrospective method of adoption effective January 1, 2019. Under the modified retrospective method of adoption, prior year reported results are not restated. For adoption, Duke Energy has elected to apply the following practical expedients:

Practical Expedient	Description
Package of transition practical expedients (for leases commenced prior to adoption date and must be adopted as a package)	Do not need to 1) reassess whether any expired or existing contracts are/or contain leases, 2) reassess the lease classification for any expired or existing leases and 3) reassess initial direct costs for any existing leases.
Short-term lease expedient (elect by class of underlying asset)	Elect as an accounting policy to not apply the recognition requirements to short-term leases by asset class.
Lease and non-lease components (elect by class of underlying asset)	Elect as an accounting policy to not separate non-lease components from lease components and instead account for each lease and associated non-lease component as a single lease component by asset class.
Hindsight expedient (when determining lease term)	Elect to use hindsight to determine the lease term.
Existing and expired land easements not previously accounted for as leases	Elect to not evaluate existing or expired easements under the new guidance and carry forward current accounting treatment.
Comparative reporting requirements for initial adoption	Elect to apply transition requirements at adoption date, recognize cumulative effect adjustment to retained earnings in period of adoption and not apply the new requirements to comparative periods, including disclosures.
Lessor expedient (elect by class of underlying asset)	Elect as an accounting policy to aggregate non-lease components with the related lease component when specified conditions are met by asset class. Account for the combined component based on its predominant characteristic (revenue or operating lease).