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Schedule I - Condensed Financial Information of Cigna Corporation - Intercompany Balances (Details) - Cigna - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]    
Intercompany receivables   $ 8.2
Intercompany payables   6.8
Intercompany receivables, net $ 7.8 $ 1.4
Average monthly interest rate on intercompany payables 0.20%  
Interest rate, intercompany receivables 5.50%