Amount of increase in lease obligation from new lease.

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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.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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LEASES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
LEASES - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 15	$ 14
Lease obligation incurred	$ 2
Weighted average discount rate (as a percent)	2.30%		2.30%
Minimum
Lessee, Lease, Description [Line Items]
Weighted average discount rate (as a percent)	1.00%
Maximum
Lessee, Lease, Description [Line Items]
Weighted average discount rate (as a percent)	9.00%