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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]  
Stock-Based Compensation, Plan Award Limits
The following table details the award limits under each of the Plans.
Total PlanAnnual Grant Limit
Total As % of
Outstanding		Annual GrantAnnual Grant Limit
For Individual Participants -
Performance Based Awards
Award
Limit		PPL Common Stock
On First Day of		Limit
Options		For awards
denominated in		For awards
denominated in
Plan(Shares)Each Calendar Year(Shares)shares (Shares)cash (in dollars)
SIP15,000,000  2,000,000 750,000 $15,000,000 
ICPKE14,199,796 2 %3,000,000   
Restricted Stock and Restricted Stock Units, Weighted Average Grant Date Fair Value
The weighted-average grant date fair value of restricted stock units granted was:
 202220212020
PPL$27.52 $28.00 $35.30 
PPL Electric26.66 27.96 35.37 
Restricted Stock and Restricted Stock Units, Activity Rollforward
Restricted stock unit activity for 2022 was:
Restricted
Shares/Units		Weighted-
Average
Grant Date Fair
Value Per Share
PPL  
Nonvested, beginning of period1,004,583 $31.19 
Granted620,708 27.52 
Vested(427,095)31.55 
Forfeited(15,779)29.61 
Nonvested, end of period1,182,417 29.16 
PPL Electric  
Nonvested, beginning of period131,287 $31.50 
Transfer between registrants(30,353)30.03 
Granted51,832 26.66 
Vested(41,233)32.19 
Forfeited(1,747)32.19 
Nonvested, end of period109,786 28.91 
Restricted Stock and Restricted Stock Units, Total Fair Value Vested at Year End
The total fair value of restricted stock units vesting for the years ended December 31 was:
 202220212020
PPL$12 $8 $19 
PPL Electric1 1 3 
Performance Units, Valuation Assumptions
The weighted-average assumptions used in the model were:
 202220212020
Expected stock volatility22.79%27.81%15.64%
Expected life3 years3 years3 years
Performance Units, Weighted Average Grant Date Fair Value
The weighted-average grant date fair value of TSR performance units granted was:
 202220212020
PPL$34.27 $32.44 $37.63 
PPL Electric34.42 32.92 38.64 
The weighted-average grant date fair value of ROE performance units granted was:
 202220212020
PPL$30.81 $30.08 $34.95 
PPL Electric30.70 29.39 35.59 
Performance Units, Activity Rollforward
TSR performance unit activity for 2022 was:
TSR Performance UnitsWeighted-
Average Grant
Date Fair Value
Per Share
PPL  
Nonvested, beginning of period633,773 $34.68 
Granted298,795 34.27 
Forfeited (a)(245,861)35.48 
Nonvested, end of period686,707 34.21 
TSR Performance UnitsWeighted-
Average Grant
Date Fair Value
Per Share
PPL Electric  
Nonvested, beginning of period15,354 $34.36 
Granted14,238 34.42 
Forfeited (a)(3,113)35.58 
Nonvested, end of period26,479 34.25 

(a)Primarily related to the forfeiture of 2019 domestic performance units as performance during the period was below the minimum established performance threshold, which resulted in no payout.
ROE performance unit activity for 2022 was:
ROE Performance UnitWeighted-
Average Grant
Date Fair Value
Per Share
PPL  
Nonvested, beginning of period722,353 $31.28 
Granted (a)257,199 30.81 
Vested(470,182)30.76 
Nonvested, end of period 509,370 31.53 
PPL Electric  
Nonvested, beginning of period15,354 $30.27 
Granted (a)3,663 30.70 
Vested(6,311)30.78 
Nonvested, end of period12,706 30.14 
(a)Represents attainment updates to the 2019 awards that paid out at 200% of target, as well as dividend equivalents that accumulated on outstanding 2020 and 2021 awards.
Share-based Compensation Arrangements by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest
The total fair value of ROE performance units vesting for the years ended December 31 was:
 202220212020
PPL$12 $16 $8 
PPL Electric— — 1 
Stock Options, Activity Rollforward
Stock option activity for 2022 was:
Number
of Options		Weighted
Average
Exercise
Price Per Share		Weighted-
Average
Remaining
Contractual
Term (years)		Aggregate
Total Intrinsic
Value
PPL    
Outstanding at beginning of period766,002 $26.57   
Exercised(594,450)26.44   
Outstanding and exercisable at end of period171,552 27.04 0.1$— 
Compensation Costs for Restricted Stock, Restricted Stock Units, Performance Units and Stock Options
Compensation expense for restricted stock, restricted stock units, performance units and stock options accounted for as equity awards was:
 202220212020
PPL$36 $34 $28 
PPL Electric2 11 10 

The income tax benefit related to above compensation expense was as follows:
 202220212020
PPL$10 $10 $8 
PPL Electric1 3 3 
Unrecognized Compensation Cost, Nonvested Restricted Stock, Restricted Stock Units, Performance Units and Stock Option Awards At December 31, 2022, unrecognized compensation expense related to nonvested stock awards was:
Unrecognized
Compensation
Expense		Weighted-
Average
Period for
Recognition
PPL$23 1.8
PPL Electric2 1.8
PPL Electric Utilities Corp [Member]  
Disclosure Of Compensation Related Costs Sharebased Payments [Line Items]  
Stock-Based Compensation, Plan Award Limits
The following table details the award limits under each of the Plans.
Total PlanAnnual Grant Limit
Total As % of
Outstanding		Annual GrantAnnual Grant Limit
For Individual Participants -
Performance Based Awards
Award
Limit		PPL Common Stock
On First Day of		Limit
Options		For awards
denominated in		For awards
denominated in
Plan(Shares)Each Calendar Year(Shares)shares (Shares)cash (in dollars)
SIP15,000,000  2,000,000 750,000 $15,000,000 
ICPKE14,199,796 2 %3,000,000   
Restricted Stock and Restricted Stock Units, Weighted Average Grant Date Fair Value
The weighted-average grant date fair value of restricted stock units granted was:
 202220212020
PPL$27.52 $28.00 $35.30 
PPL Electric26.66 27.96 35.37 
Restricted Stock and Restricted Stock Units, Activity Rollforward
Restricted stock unit activity for 2022 was:
Restricted
Shares/Units		Weighted-
Average
Grant Date Fair
Value Per Share
PPL  
Nonvested, beginning of period1,004,583 $31.19 
Granted620,708 27.52 
Vested(427,095)31.55 
Forfeited(15,779)29.61 
Nonvested, end of period1,182,417 29.16 
PPL Electric  
Nonvested, beginning of period131,287 $31.50 
Transfer between registrants(30,353)30.03 
Granted51,832 26.66 
Vested(41,233)32.19 
Forfeited(1,747)32.19 
Nonvested, end of period109,786 28.91 
Restricted Stock and Restricted Stock Units, Total Fair Value Vested at Year End
The total fair value of restricted stock units vesting for the years ended December 31 was:
 202220212020
PPL$12 $8 $19 
PPL Electric1 1 3 
Performance Units, Valuation Assumptions
The weighted-average assumptions used in the model were:
 202220212020
Expected stock volatility22.79%27.81%15.64%
Expected life3 years3 years3 years
Performance Units, Weighted Average Grant Date Fair Value
The weighted-average grant date fair value of TSR performance units granted was:
 202220212020
PPL$34.27 $32.44 $37.63 
PPL Electric34.42 32.92 38.64 
The weighted-average grant date fair value of ROE performance units granted was:
 202220212020
PPL$30.81 $30.08 $34.95 
PPL Electric30.70 29.39 35.59 
Performance Units, Activity Rollforward
TSR performance unit activity for 2022 was:
TSR Performance UnitsWeighted-
Average Grant
Date Fair Value
Per Share
PPL  
Nonvested, beginning of period633,773 $34.68 
Granted298,795 34.27 
Forfeited (a)(245,861)35.48 
Nonvested, end of period686,707 34.21 
TSR Performance UnitsWeighted-
Average Grant
Date Fair Value
Per Share
PPL Electric  
Nonvested, beginning of period15,354 $34.36 
Granted14,238 34.42 
Forfeited (a)(3,113)35.58 
Nonvested, end of period26,479 34.25 

(a)Primarily related to the forfeiture of 2019 domestic performance units as performance during the period was below the minimum established performance threshold, which resulted in no payout.
ROE performance unit activity for 2022 was:
ROE Performance UnitWeighted-
Average Grant
Date Fair Value
Per Share
PPL  
Nonvested, beginning of period722,353 $31.28 
Granted (a)257,199 30.81 
Vested(470,182)30.76 
Nonvested, end of period 509,370 31.53 
PPL Electric  
Nonvested, beginning of period15,354 $30.27 
Granted (a)3,663 30.70 
Vested(6,311)30.78 
Nonvested, end of period12,706 30.14 
(a)Represents attainment updates to the 2019 awards that paid out at 200% of target, as well as dividend equivalents that accumulated on outstanding 2020 and 2021 awards.
Share-based Compensation Arrangements by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest
The total fair value of ROE performance units vesting for the years ended December 31 was:
 202220212020
PPL$12 $16 $8 
PPL Electric— — 1 
Compensation Costs for Restricted Stock, Restricted Stock Units, Performance Units and Stock Options
Compensation expense for restricted stock, restricted stock units, performance units and stock options accounted for as equity awards was:
 202220212020
PPL$36 $34 $28 
PPL Electric2 11 10 

The income tax benefit related to above compensation expense was as follows:
 202220212020
PPL$10 $10 $8 
PPL Electric1 3 3 
Unrecognized Compensation Cost, Nonvested Restricted Stock, Restricted Stock Units, Performance Units and Stock Option Awards At December 31, 2022, unrecognized compensation expense related to nonvested stock awards was:
Unrecognized
Compensation
Expense		Weighted-
Average
Period for
Recognition
PPL$23 1.8
PPL Electric2 1.8