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v3.25.3

Investments - Equity Investments (Details) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2025 USD ($)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |
Balance, beginning of period | $ 1,607
Purchases | 30
Sales | 0
Changes in fair value | 14
Other | 34
Balance, end of period | 1,685
Marketable Securities |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |
Balance, beginning of period | 237
Purchases | 0
Sales | 0
Changes in fair value | 11
Other | 0
Balance, end of period | 248
Nonmarketable Securities |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] |
Balance, beginning of period | 1,370
Purchases | 30
Sales | 0
Changes in fair value | 3
Other | 34
Balance, end of period | $ 1,437

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