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REVENUE - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
REVENUE - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Lease & related maintenance and rental revenue	$ 986	$ 1,044	$ 2,941	$ 3,119
Contract with customer, revenue, remaining performance obligation	2,700		2,700
Maintenance Services
Disaggregation of Revenue [Line Items]
Lease & related maintenance and rental revenue	$ 239	$ 250	$ 722	$ 769

- 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