Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Share-based Payment Arrangement [Abstract]

Schedule Of Total Stock-Based Compensation Expense, net of tax

The following table summarizes the total expense recognized by the Duke Energy Registrants, net of tax, for stock-based compensation.

	Years Ended December 31,
(in millions)	2019		2018		2017
Duke Energy	$	65	$	56	$	43
Duke Energy Carolinas	24		20		15
Progress Energy	24		21		16
Duke Energy Progress	15		13		10
Duke Energy Florida	9		8		6
Duke Energy Ohio	5		4		3
Duke Energy Indiana	6		5		4
Piedmont	3		3		3

Schedule Of Stock-Based Compensation Expense

Duke Energy's pretax stock-based compensation costs, the tax benefit associated with stock-based compensation expense and stock-based compensation costs capitalized are included in the following table.

	Years Ended December 31,
(in millions)	2019		2018		2017
RSU awards	$	44	$	43	$	41
Performance awards	45		35		27
Pretax stock-based compensation cost	$	89	$	78	$	68
Stock-based compensation costs capitalized	5		5		4
Stock-based compensation expense	$	84	$	73	$	64
Tax benefit associated with stock-based compensation expense	$	19	$	17	$	25

Schedule of Share-based Compensation, Restricted Stock Units Award Activity

The following table includes information related to RSU awards.

	Years Ended December 31,
	2019		2018		2017
Shares granted (in thousands)	571		649		583
Fair value (in millions)	$	51	$	49	$	47

The following table summarizes information about RSU awards outstanding.

			Weighted Average
	Shares		Grant Date Fair Value
	(in thousands)		(per share)
Outstanding at December 31, 2018	1,153		$	77
Granted	571		89
Vested	(631	)	77
Forfeited	(83	)	82
Outstanding at December 31, 2019	1,010		83
RSU awards expected to vest	951		83

Schedule of Performance Awards

The following table includes information related to stock-based performance awards.

	Years Ended December 31,
	2019		2018		2017
Shares granted assuming target performance (in thousands)	320		372		461
Fair value (in millions)	$	27	$	27	$	37

Schedule of Nonvested Performance-based Units Activity

The following table summarizes information about stock-based performance awards outstanding and assumes payout at the target level.

			Weighted Average
	Shares		Grant Date Fair Value
	(in thousands)		(per share)
Outstanding at December 31, 2018	1,117		$	77
Granted	320		86
Vested	(310	)	75
Forfeited	(18	)	81
Outstanding at December 31, 2019	1,109		80
Stock-based performance awards expected to vest	1,080		80