XML 76 R58.htm IDEA: XBRL DOCUMENT v3.22.4
Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Summary of Company's non-vested RSU awards and changes during the year The following table summarizes the Company's non-vested RSU awards and changes during the year:
UnitsWeighted Average Grant Date Fair Value per Unit
Non-vested at December 31, 2021669,952 $38.69 
Granted530,565 41.26 
Forfeited(43,601)41.09 
Vested(299,999)38.36 
Non-vested at December 31, 2022856,917 40.25 
Summary of Company's DSU awards and non-vested PSU Awards changes during the year
The following table summarizes the Company's outstanding DSU awards and changes during the year:
UnitsWeighted Average Grant Date Fair Value per Unit
Outstanding at December 31, 2021384,128 $26.11 
Granted52,865 45.49 
Converted to Common Stock(18,979)39.27 
Outstanding at December 31, 2022418,014 27.63 
The following table summarizes the Company's non-vested RPSU awards and changes during the year:
UnitsWeighted Average Grant-Date Fair Value per Unit
Non-vested at December 31, 2021730,505 $47.40 
Granted291,852 57.41 
Forfeited(54,392)46.68 
Vested(172,630)45.77 
Non-vested at December 31, 2022795,335 50.23 
Schedule of Assumptions used in Fair Value Model Significant assumptions used in the fair value model with respect to the Company's RPSUs are summarized below:
2022
2021(a)
2020
RPSUsRPSUsRPSUs
Expected volatility37.54 %34.05 %30.15 %
Expected term (in years)333
Risk free rate0.97 %0.17 %1.58 %
(a)Assumptions pertain to the main award granted in January 2021. Additional 60,815 RPSUs were granted in September 2021 with a risk free rate of 0.42% and expected volatility of 37.38%
Summary of NRG's total compensation expense recognized and total non-vested compensation costs not yet recognized and the period over which this expense is expected to be recognized
The following table summarizes NRG's total compensation expense recognized for the years presented, as well as total non-vested compensation costs not yet recognized and the period over which this expense is expected to be recognized as of December 31, 2022, for each of the types of awards issued under the LTIPs. Minimum tax withholdings of $6 million, $9 million, and $27 million for the years ended December 31, 2022, 2021, and 2020, respectively, are reflected as a reduction to additional paid-in capital on the Company's consolidated balance sheets.
   Non-vested Compensation Cost
 (In millions, except weighted average data)Compensation Expense
Unrecognized
Total Cost
Weighted Average Recognition Period Remaining (In years)
Year Ended December 31,As of December 31,
Award20222021202020222022
RSUs$15 $9 $9 $17 1.75
DSUs2 2 2 — 0.00
RPSUs11 9 10 13 1.16
PRSUs(a)
6 7 6 7 1.45
Total$34 $27 $27 $37  
Tax detriment/(benefit) recognized$3 $2 $(9)  
(a)Phantom Restricted Stock Units, PRSUs, are liability-classified time-based awards that typically vest ratably over a three-year period. The amount to be paid upon vesting is based on NRG's closing stock price for the period