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v3.25.3

Derivative Instruments (Fair Value Hedge Attributable to Foreign Currency) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Foreign Exchange Contract | Interest Expense [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | $ 0 | $ 0 | $ 0 | $ 0
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | 0 | 0 | 0 | 0
Foreign Exchange Contract | Insurance Claims [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 0 | 0 | 0 | 0
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | 0 | 0 | 0 | 0
Foreign Exchange Contract | Investment Income (Expense) |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 0 | 0 | 0 | 2
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | 0 | 0 | 0 | (4)
Interest Rate Contract | Interest Expense [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 1 | 42 | 23 | 37
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | (1) | (45) | (27) | (43)
Interest Rate Contract | Insurance Claims [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 0 | 0 | 0 | 0
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | 0 | 0 | 0 | 0
Interest Rate Contract | Investment Income (Expense) |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 0 | 0 | 0 | 0
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | 0 | 0 | 0 | 0
Financial Futures | Interest Expense [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 0 | 0 | 0 | 0
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | 0 | 0 | 0 | 0
Financial Futures | Insurance Claims [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 0 | 31 | 14 | 27
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | (1) | (34) | (15) | (32)
Financial Futures | Investment Income (Expense) |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments | 0 | 0 | 0 | 0
Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge | $ 0 | $ 0 | $ 0 | $ 0

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