XML 104 R91.htm IDEA: XBRL DOCUMENT v3.23.2
Share-Based Compensation - Subsidiary Awards (Details) - WR Value Share Plan - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected volatility     43.47%
Expected term     3 years 6 months
Expected dividends     $ 0
Risk-free interest rate     4.38%
Share-based Compensation Expense $ 2   $ 3
Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 24   $ 24
Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross   7,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 3.69