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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Accumulated benefit obligations in excess of fair value of plan assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Pension benefits
Accumulated benefit obligations in excess of the fair value of plan assets
Accumulated Benefit Obligations	$ 880	$ 6,689
Fair value of plan assets	138	5,584
Other benefits
Accumulated benefit obligations in excess of the fair value of plan assets
Accumulated Benefit Obligations	166	696
Fair value of plan assets	$ 0	$ 419

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- References

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- Definition

Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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- Definition

Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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