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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2022
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)202220212020
Duke Energy$74 $64 $61 
Duke Energy Carolinas27 23 22 
Progress Energy27 24 23 
Duke Energy Progress17 15 15 
Duke Energy Florida10 9 9 
Duke Energy Ohio5 5 4 
Duke Energy Indiana7 6 6 
Piedmont4 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)202220212020
RSU awards$58 $49 $46 
Performance awards42 39 38 
Pretax stock-based compensation cost$100 $88 $84 
Stock-based compensation costs capitalized5 5 5 
Stock-based compensation expense$95 $83 $79 
Tax benefit associated with stock-based compensation expense$21 $19 $18 
Schedule of Share-based Compensation, Restricted Stock Units Award Activity The following table includes information related to RSU awards.
 Years Ended December 31,
 202220212020
Shares granted (in thousands) 654 673 498 
Fair value (in millions)$64 $59 $50 
The following table summarizes information about RSU awards outstanding.
Weighted Average
SharesGrant Date Fair Value
 (in thousands)(per share)
Outstanding at December 31, 20211,043 $92 
Granted654 98 
Vested(527)93 
Forfeited(73)94 
Outstanding at December 31, 20221,097 95 
RSU awards expected to vest1,056 95 
Schedule of Performance Awards
The following table includes information related to stock-based performance awards.
 Years Ended December 31,
 202220212020
Shares granted assuming target performance (in thousands)408 380 319 
Fair value (in millions)$40 $33 $34 
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
SharesGrant Date Fair Value
 (in thousands)(per share)
Outstanding at December 31, 2021952 $93 
Granted408 99 
Vested(297)86 
Forfeited(30)96 
Outstanding at December 31, 20221,033 97 
Stock-based performance awards expected to vest1,006 97