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Claims, Lawsuits And Other Contingencies (Details) numberOfCases in Thousands, $ in Millions | 48 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 numberOfCases | Sep. 30, 2020 GBP (£) | Sep. 30, 2020 USD ($) | Feb. 28, 2019 GBP (£) | Feb. 28, 2019 USD ($)
Other Contingencies-Guarantees |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Amount reinsured by third party (up to) | £ |  | £ 40,000,000 |  |  |
Jardine Lloyd Thompson Group plc |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Individual cases analyzed | numberOfCases | 14 |  |  |  |
Loss contingency accrual |  | £ 62,000,000 | $ 79 | £ 59,000,000 | $ 77

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- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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