Organization and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Cash Received and Allocated Losses from Subsidiaries, Noncontrolling Interest

The following table presents cash received for the sale of noncontrolling interest and allocated losses to noncontrolling interest for the three and nine months ended September 30, 2020, and 2019.

	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2020		2019		2020		2019
Noncontrolling Interest Capital Contributions
Cash received for the sale of noncontrolling interest to tax equity members	$	239	$	7	$	402	$	200
Cash received for the sale of noncontrolling interest to pro rata share members	—		—		—		415
Total Noncontrolling Interest Capital Contributions	239		7		402		615
Noncontrolling Interest Allocation of Income
Allocated losses to noncontrolling tax equity members utilizing the HLBV method	59		15		187		105
Allocated losses to noncontrolling members based on pro rata shares of ownership	11		4		21		5
Total Noncontrolling Interest Allocated Losses	$	70	$	19	$	208	$	110

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.

	September 30, 2020						December 31, 2019
					Duke						Duke
	Duke		Progress		Energy		Duke		Progress		Energy
	Energy		Energy		Florida		Energy		Energy		Florida
Current Assets
Cash and cash equivalents	$	308	$	70	$	19	$	311	$	48	$	17
Other	187		16		16		222		39		39
Other Noncurrent Assets
Other	105		102		—		40		39		—
Total cash, cash equivalents and restricted cash	$	600	$	188	$	35	$	573	$	126	$	56

Schedule of Utility Inventory

The components of inventory are presented in the tables below.

	September 30, 2020
			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	$	2,341	$	779	$	1,021	$	682	$	340	$	79	$	314	$	13
Coal	546		173		168		120		48		12		192		—
Natural gas, oil and other fuel	303		40		189		108		80		39		1		34
Total inventory	$	3,190	$	992	$	1,378	$	910	$	468	$	130	$	507	$	47

	December 31, 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	$	2,297	$	768	$	1,038	$	686	$	351	$	79	$	318	$	5
Coal	586		187		186		138		48		15		198		—
Natural gas, oil and other fuel	349		41		199		110		90		41		1		67
Total inventory	$	3,232	$	996	$	1,423	$	934	$	489	$	135	$	517	$	72

Schedule of New Accounting Pronouncements

Duke Energy recorded an adjustment for the cumulative effect of a change in accounting principle due to the adoption of this standard on January 1, 2020, as shown in the table below:

	January 1, 2020
			Duke				Duke		Duke
	Duke		Energy		Progress		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Piedmont
Total pretax impact to Retained Earnings	$	120	$	16	$	2	$	1	$	1	$	1