Schedule I - Condensed Financial Information of Cigna Corporation - Intercompany Balances (Details) - Cigna - USD ($) $ in Billions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Intercompany receivables	$ 8.2	$ 8.2
Intercompany payables	6.8	4.3
Intercompany receivables, net	$ 1.4	$ 3.9
Average monthly interest rate on intercompany payables	0.97%
Interest rate, intercompany receivables	5.50%

Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due after 1 year (or 1 business cycle).

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+ Details