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BENEFIT PLANS - OTHER CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Net actuarial loss (gain)	$ (36)	$ 43	$ 53
Amortization	(11)	(9)	(5)
Total recognized in AOCI	(47)	34	48
Total recognized in net periodic benefit cost and AOCI	$ (20)	$ 59	$ 76

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- Definition

Amount recognized in net periodic benefit cost (credit) and other comprehensive (income) loss.

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Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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