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Employee Benefit Plans (Net Periodic Benefit Costs) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Net Periodic Benefit Cost [Abstract]
Interest costs	$ 5	$ 7	$ 9
Amortization of net actuarial loss	7	5	4
Amortization of prior service credit	(1)	(3)	(4)
Net periodic costs	$ 11	$ 9	$ 9

X

- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan.

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

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