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RELATED PARTIES - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended
RELATED PARTIES - Narrative (Details) $ in Millions	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) director	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items]
All other assets, noncurrent	$ 2,036		$ 2,036		$ 1,024
All other liabilities, noncurrent	1,826		1,826		$ 1,603
Revenue	4,822	$ 4,576	14,346	$ 13,403
Majority shareholder \| Separation costs related to pension, benefit and contribution plans
Related Party Transaction [Line Items]
Transaction amount		59		182
Majority shareholder \| Share-based compensation expense
Related Party Transaction [Line Items]
Transaction amount		$ 19		$ 58
Related party
Related Party Transaction [Line Items]
All other assets, noncurrent	82		82
All other liabilities, noncurrent	28		28
Related party \| Transition Services Agreement
Related Party Transaction [Line Items]
Transaction amount	94		$ 286
Agreement term			36 months
Related party \| Tax Matters Agreement
Related Party Transaction [Line Items]
Period following distribution date			2 years
Directors
Related Party Transaction [Line Items]
Number of board members \| director			2
Revenue	$ 26		$ 73