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Acquisition and Disposition - Assets and liabilities recognized in acquisition (Details) - USD ($) $ in Millions | Mar. 31, 2021 | Jan. 04, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Assets |  |  |
Goodwill | $ 3,350 |  | $ 2,369
National General Holdings Corp. |  |  |
Assets |  |  |
Investments |  | $ 4,957 |
Cash |  | 402 |
Premiums and other receivables, net |  | 1,545 |
Deferred acquisition costs (value of business acquired) |  | 317 |
Reinsurance recoverables, net |  | 1,219 |
Intangible assets |  | 1,199 |
Other assets |  | 734 |
Goodwill |  | 980 |
Total assets |  | 11,353 |
Liabilities |  |  |
Reserve for property and casualty insurance claims and claims expense |  | 2,774 |
Reserve for future policy benefits |  | 189 |
Unearned premiums |  | 2,245 |
Reinsurance payable |  | 364 |
Debt |  | 592 |
Deferred tax liabilities |  | 177 |
Other liabilities |  | 701 |
Total liabilities |  | $ 7,042 |

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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472 + Details
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