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EMPLOYEE RETIREMENT PLANS - Unrealized Loss Included in Accumulated Other Comprehensive (Loss) Income before Income Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Qualified
Amounts in accumulated other comprehensive income (loss) before income taxes
Net loss	$ 56	$ 540
Net prior service cost	3	3
Total	59	543
Non-Qualified
Amounts in accumulated other comprehensive income (loss) before income taxes
Net loss	57	65
Net prior service cost	0	0
Total	$ 57	$ 65

X

- Definition

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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- Definition

Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

+ References

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- Definition

Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

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