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Stock Compensation Plans - Liability Awards - Additional Information (Detail) - Cash RSU's [Member]
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting percentage granted in cash to eligible employees 100.00%
Vesting percentage 100.00%
Vesting period, in years 3 years
Total fair value of vested $ 5
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted $ 8
Unrecognized compensation cost related to non-vested stock options and SSAR, RSU, PRS and Cash RSU awards granted, weighted average period, in years 2 years