Insurance - Premiums receivable, progression of allowance for expected credit losses (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Premium Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning Balance | $ 21 | $ 19 | $ 20 | $ 19 |
| Provision (credit) for expected credit losses | 0 | 1 | 1 | 1 |
| Write-offs charged against the allowance | 0 | 0 | 0 | 0 |
| Ending Balance | $ 21 | $ 20 | $ 21 | $ 20 |
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- Definition Amount of expense (reversal of expense) for expected credit loss on premium receivable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The carrying value as of the balance sheet date of the estimated valuation allowance to reduce gross premiums receivable to net realizable value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of writeoff of premium receivable, charged against allowance for credit loss. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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