STOCK-BASED COMPENSATION (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2022	Mar. 31, 2023	Dec. 31, 2021	Dec. 31, 2020
Stock-based compensation cost, allocation of recognized costs
Pre-tax stock-based compensation cost	$ 31	$ 113	$ 71	$ 64
Income tax benefits	(5)	(5)	(13)	(14)
Total net stock-based compensation cost	26	108	58	49
Unrecognized compensation cost related to non-vested awards		$ 165
Unrecognized compensation cost related to non-vested awards, weighted average period of recognition		2 years 2 months 12 days
Cost of service
Stock-based compensation cost, allocation of recognized costs
Pre-tax stock-based compensation cost	7	$ 21	28	26
Selling, general and administrative expense.
Stock-based compensation cost, allocation of recognized costs
Pre-tax stock-based compensation cost	$ 24	$ 92	$ 44	$ 37

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-SubTopic 10
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