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INCOME TAXES - Income Tax Disclosure (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Contingency [Line Items]      
Deferred tax assets $ 57 $ 109  
Tax (expense) benefit, change in valuation allowance (2) 5 $ 4
Income tax expense from loss on termination of defined benefit plan 14    
Income tax expense from divestiture of business 4    
Income tax expense due to disproportionate tax effects 16    
Deferred tax assets. net operating loss and tax credit carryforwards 37 65  
Deferred tax assets. net operating loss and tax credit carryforwards, subject to expiration $ 25 35  
Deferred tax assets. net operating loss and tax credit carryforwards, subject to expiration, expiration term 15 years    
Deferred tax assets. net operating loss and tax credit carryforwards, not subject to expiration $ 12 30  
Income taxes paid 246 442 384
State and Local Jurisdiction      
Income Tax Contingency [Line Items]      
Tax benefit from reversal of an accrual for uncertain tax position 10 9 8
Tax expense (benefit). change in valuation allowance   3 $ (1)
Other Noncurrent Assets      
Income Tax Contingency [Line Items]      
Deferred tax assets 57 109  
Other Noncurrent Liabilities      
Income Tax Contingency [Line Items]      
Deferred tax liabilities $ 20 $ 20