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LEASES - Assets and Liabilities, Lessee (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Weighted-average remaining lease terms (years)      
Operating leases 7 years 11 months 19 days 8 years 6 months 18 days 9 years 5 months 1 day
Finance leases 8 years 1 month 13 days 7 years 8 months 26 days 4 years 7 months 13 days
Weighted-average discount rate      
Operating leases 4.16% 4.21% 4.51%
Finance leases 12.22% 11.58% 10.45%
Assets      
Operating lease $ 279 $ 265  
Finance lease 48 57  
Total leased assets 327 322  
Current:      
Operating 39 42  
Finance 13 14  
Noncurrent:      
Operating 271 263  
Finance lease obligations 23 31  
Total leased liabilities 346 350  
Operating lease assets, accumulated amortization 79 51  
Financing lease, accumulated amortization $ 95 $ 96  
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other Assets, Noncurrent Other Assets, Noncurrent  
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, plant and equipment Property, plant and equipment  
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Other Liabilities, Current Other Liabilities, Current  
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Long-term Debt and Lease Obligation, Current Long-term Debt and Lease Obligation, Current  
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Other Liabilities, Noncurrent Other Liabilities, Noncurrent  
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Total long-term debt and other long-term obligations Total long-term debt and other long-term obligations  
Operating cash flows from operating leases $ 64 $ 44 $ 29
Operating cash flows from finance leases 4 4 5
Finance cash flows from finance leases 13 15 25
Operating leases 60 67 83
Finance leases $ 5 $ 0 $ 3