Severance (Tables)

12 Months Ended

Dec. 31, 2019

Restructuring and Related Activities [Abstract]

Schedule of Severance Expense

by the Duke Energy Registrants within Operation, maintenance and other on the Consolidated Statements of Operations.

			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Year Ended December 31, 2019	$	16	$	8	$	6	$	3	$	3	$	—	$	1	$	1
Year Ended December 31, 2018	187		102		69		52		17		6		7		2
Year Ended December 31, 2017	15		2		2		1		1		—		1		9

Schedule of Severance Liability

The table below presents the severance liability for past and ongoing severance plans including the plans described above.

				Duke						Duke			Duke			Duke			Duke
	Duke			Energy			Progress			Energy			Energy			Energy			Energy
(in millions)	Energy			Carolinas			Energy			Progress			Florida			Ohio			Indiana			Piedmont
Balance at December 31, 2018	$	205		$	100		$	51		$	41		$	9		$	2		$	2		$	—
Provision/Adjustments	24			4			11			2			10			1			1			—
Cash Reductions	(188		)	(93		)	(49		)	(37		)	(12		)	(2		)	(1		)	—
Balance at December 31, 2019	$	41		$	11		$	13		$	6		$	7		$	1		$	2		$	—