LEASES - Schedule of Outstanding Operating and Finance Obligations (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Operating Leases
2021	$ 46
2022	36
2023	32
2024	26
2025	24
2026 and thereafter	142
Total undiscounted obligations	306
Less imputed interest	(74)
Present value of lease obligations	232	$ 255
Finance Leases
2021	8
2022	8
2023	7
2024	6
2025	5
2026 and thereafter	19
Total undiscounted obligations	53
Less imputed interest	(15)
Present value of lease obligations	38	$ 38
Total
2021	54
2022	44
2023	39
2024	32
2025	29
2026 and thereafter	161
Total undiscounted obligations	359
Less imputed interest	(89)
Present value of lease obligations	$ 270

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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-Paragraph 1
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