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FAIR VALUE - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Aug. 11, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Swap liability $ 129,000,000    
Swap asset   $ 68,000,000  
Disposed of by Sale | Gentiva Hospice      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Equity interest to be sold (as percent)     60.00%
Put Option      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Fair value of financial liability 883,000,000 595,000,000  
Call Option      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Fair value of financial asset 10,000,000 18,000,000  
Commercial paper      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Commercial paper borrowings 0 871,000,000  
Carrying Value      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Debt outstanding 11,700,000,000 10,800,000,000  
Fair Value      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Debt outstanding 11,200,000,000 10,600,000,000  
Interest Rate Swap      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Cumulative, aggregate adjustment to the carrying value of senior note (129,000,000)    
Recurring Basis      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Assets, fair value $ 21,101,000,000 $ 21,590,000,000  
Unobservable Inputs (Level 3) | Investments | Fair Value Risk      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Concentration risk (as percent) 1.50% 1.00%  
Unobservable Inputs (Level 3) | Recurring Basis      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Assets, fair value $ 322,000,000 $ 218,000,000