Other Income and Expenses, Net (Tables)

12 Months Ended

Dec. 31, 2016

Component Of Other Income Expense Nonoperating [Line Items]

Schedule of Other Income and Expenses, Net

The components of Other income and expenses, net on the Consolidated Statements of Operations are as follows.

	Year Ended December 31, 2016
			Duke				Duke		Duke		Duke			Duke
	Duke		Energy		Progress		Energy		Energy		Energy			Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio			Indiana
Interest income	$	21	$	4	$	4	$	3	$	2	$	5		$	6
AFUDC equity	200		102		76		50		26		6			16
Post in-service equity returns	67		55		12		12		—		—			—
Nonoperating income (expense), other	36		1		22		6		16		(2		)	—
Other income and expense, net	$	324	$	162	$	114	$	71	$	44	$	9		$	22

	Year Ended December 31, 2015
			Duke				Duke		Duke		Duke			Duke
	Duke		Energy		Progress		Energy		Energy		Energy			Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio			Indiana
Interest income	$	20	$	2	$	4	$	2	$	2	$	4		$	6
AFUDC equity	164		96		54		47		7		3			11
Post in-service equity returns	73		60		13		13		—		—			—
Nonoperating income (expense), other	33		2		26		9		15		(1		)	(6		)
Other income and expense, net	$	290	$	160	$	97	$	71	$	24	$	6		$	11

	Year Ended December 31, 2014
			Duke				Duke		Duke		Duke			Duke
	Duke		Energy		Progress		Energy		Energy		Energy			Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio			Indiana
Interest income	$	16	$	4	$	3	$	—	$	2	$	8		$	6
AFUDC equity	135		91		26		25		—		4			14
Post in-service equity returns	89		71		17		17		—		—			—
Nonoperating income (expense), other	80		6		31		9		18		(2		)	2
Other income and expense, net	$	320	$	172	$	77	$	51	$	20	$	10		$	22