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Employee Benefit Plans (Net Periodic Costs) (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Defined Benefit Plan Net Periodic Benefit Cost [Abstract]        
Interest costs $ 2 $ 2 $ 3 $ 3
Amortization of net actuarial loss 1 1 3 3
Amortization of prior service credit 0 (1) 0 (1)
Net periodic costs $ 3 $ 2 $ 6 $ 5