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Share-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Summary of Changes In Stock Options
The following table summarizes the changes in the number of shares of common stock for 2022 (shares and aggregate intrinsic value in millions):
SharesWeighted-
Average
Exercise
Price Per
Share		Weighted
Average
Remaining Life
(years)		Aggregate
Intrinsic
Value
Outstanding at December 31, 20214.8 $21 
Granted2.2 26 
Exercised(0.1)21 
Forfeited(0.4)24 
Outstanding at December 31, 20226.5 $23 8.00
Options exercisable, end of year2.7 $20 7.10
Schedule of Weighted Average Assumptions Used to Determined the Fair Value of Stock Options Granted
The weighted average assumptions used to determine the fair value of stock options granted for the years ended December 31, are as follows:
 2022 2021
Expected life in years66
Risk-free interest rate1.9 %0.8 %
Expected volatility42.0 %44.2 %
Expected dividend yield5.1 %5.1 %
Summary of Changes of Restricted Stock and Restricted Stock Units
The following table summarizes the changes in the number of outstanding restricted stock units for 2022 (shares in millions):
Restricted
Stock
Units		Weighted-
Average Grant
Date Fair Value
Per Share
Outstanding at December 31, 2021
4.3 $22 
Granted1.9 26 
Grant adjustment (1)
0.3 17 
Vested(1.5)18 
Forfeited(0.5)25 
Outstanding at December 31, 2022
4.5 $24 
Expected to vest at December 31, 2022
2.5 $24 

(1)The Grant Adjustment primarily relates to an adjustment in the quantity of Stock-Price Based RSUs ultimately vested during 2022 that were dependent on the level of achievement of the specified performance conditions.
Summary of Total Unrecognized Compensation Cost Related to Stock-based Compensation The following table summarizes the Company's total unrecognized compensation cost related to stock-based compensation at December 31, 2022:
(in millions)Unrecognized Compensation CostWeighted Average Period of Expense Recognition
(in years)
Restricted stock units$18 1
Stock options8 1
Total$26 1