Debt - Schedule of Long-Term Debt Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Long-term debt	$ 30,757	$ 31,896
Long-Term Debt, Current Maturities	(375)	(1,099)
Long-term debt, less current portion	30,382	30,797
Surplus Notes
Debt Instrument [Line Items]
Long-term debt	25	25
Senior Notes \| Senior Unsecured Notes
Debt Instrument [Line Items]
Long-term debt	$ 30,732	$ 31,871

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.

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+ Details

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

+ Details