Investments - Investments by Category (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Current
Investments including held for sale assets	$ 748	$ 1,009
Current investments	665	925
Long-term
Investments including held for sale assets	16,489	19,339
Investments per Consolidated Balance Sheets	15,128	17,985
Total
Investments including held for sale assets	17,237	20,348
Total investments	15,793	18,910
Held-for-Sale \| Medicare Advantage and related Cigna Healthcare businesses
Current
Investments classified as assets of business held for sale	(83)	(84)
Long-term
Investments classified as assets of business held for sale	(1,361)	(1,354)
Total
Investments classified as assets of business held for sale	(1,444)	(1,438)
Debt securities
Current
Investments including held for sale assets	463	590
Long-term
Investments including held for sale assets	8,960	9,265
Total
Investments including held for sale assets	9,423	9,855
Equity securities
Current
Investments including held for sale assets	7	31
Long-term
Investments including held for sale assets	554	3,331
Total
Investments including held for sale assets	561	3,362
Commercial mortgage loans
Current
Investments including held for sale assets	108	182
Long-term
Investments including held for sale assets	1,243	1,351
Total
Investments including held for sale assets	1,351	1,533
Policy loans
Current
Investments including held for sale assets	0	0
Long-term
Investments including held for sale assets	1,156	1,211
Total
Investments including held for sale assets	1,156	1,211
Other long-term investments
Current
Investments including held for sale assets	0	0
Long-term
Investments including held for sale assets	4,576	4,181
Total
Investments including held for sale assets	4,576	4,181
Short-term investments
Current
Investments including held for sale assets	170	206
Long-term
Investments including held for sale assets	0	0
Total
Investments including held for sale assets	$ 170	$ 206

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