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REVENUE - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
REVENUE - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Lease & related maintenance and rental revenue	$ 976	$ 1,050	$ 1,955	$ 2,075
Contract with customer, revenue, remaining performance obligation	2,600		2,600
Maintenance Services
Disaggregation of Revenue [Line Items]
Lease & related maintenance and rental revenue	$ 239	$ 262	$ 483	$ 519

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details