v3.25.3

Fair Value Measurements - Assets and Liabilities Measured at Fair Value under Certain Conditions (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity Securities without Readily Determinable Fair Value, Amount	$ 3,383		$ 524
Impairments requiring certain assets and liabilities to be measured at fair value
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount
VillageMD
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount		$ 2,700

Impairments requiring certain financial assets and liabilities, such as commercial mortgage loans that are carried at unpaid principal, investment real estate that is carried at depreciated cost and equity securities with no readily determinable fair value when there are no observable market transactions, to be measured using fair value. These financial assets and liabilities may be measured using fair value under certain conditions, such as when investments become impaired and are written down to their fair value, or when there are observable price changes from orderly market transactions of equity securities that otherwise had no readily determinable fair value.

+ References

No definition available.

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- Definition

Amount of investment in equity security without readily determinable fair value.

+ References

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-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Publisher FASB
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- Definition

Amount of loss from downward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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- Definition

Amount of impairment loss on investment in equity security without readily determinable fair value.

+ References

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- Definition

Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value.

+ References

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-Topic 321
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-Name Accounting Standards Codification
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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Cigna Group 10-Q