v3.24.1.u1
Insurance and Contractholder Liabilities - Unpaid Claims and Claim Expenses - Cigna Healthcare - Activity (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Held-for-Sale | Medicare Advantage and related Cigna Healthcare businesses      
Paid costs related to:      
Unpaid claims classified as liabilities of business held for sale $ 1,378   $ 823
Cigna Healthcare      
Liability for Claims and Claims Adjustment Expense [Line Items]      
Total of incurred but not reported liabilities plus expected claim development on reported claims, including reported claims in process 5,400 $ 4,600  
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]      
Beginning balance   4,176  
Less: Reinsurance and other amounts recoverable   221  
Beginning balance, net   3,955  
Beginning balance, including held for sale liabilities 5,092    
Less: Reinsurance, including held for sale liabilities 236    
Beginning balance, net, including held for sale liabilities 4,856    
Incurred costs related to:      
Current year 9,452 9,041  
Prior years (226) (144)  
Total incurred 9,226 8,897  
Paid costs related to:      
Current year 5,072 5,316  
Prior years 3,352 2,795  
Total paid 8,424 8,111  
Ending balance, net   4,741  
Add: Reinsurance and other amounts recoverable   218  
Ending balance   $ 4,959  
Ending balance, net, including held for sale liabilities 5,658    
Add: Reinsurance, including held for sale liabilities 205    
Ending balance, including held for sale liabilities $ 5,863