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Commitments and Contingencies (Details) $ in Millions | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) | Jan. 19, 2018 claim
--- | --- | --- | ---
Insured Claims |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency Accrual | $ | $ 111 | $ 105 |
Shareholder Litigation |  |  |
Loss Contingencies [Line Items] |  |  |
Number of claims | claim |  |  | 5

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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=118942415&loc=d3e14326-108349 + Details
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- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349 + Details
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