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Acquisitions (Details) - USD ($) |  | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 01, 2021 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019 | Feb. 12, 2019
Business Acquisition [Line Items] |  |  |  |  |
Goodwill |  | $ 2,544,000,000 |  | $ 2,545,000,000 |
Proceeds from issuance of long-term debt |  | 0 | $ 492,000,000 |  |
Stock repurchase program |  | $ 3,000,000,000.00 |  |  |
iCracked |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Goodwill |  |  |  |  | $ 17,000,000
Forecast | National General |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Consideration transferred | $ 4,000,000,000 |  |  |  |
Share price, cash (in USD per share) | $ 32.00 |  |  |  |
Share price, dividend (in USD per share) | 2.50 |  |  |  |
Share price (in USD per share) | $ 34.50 |  |  |  |
Cash to acquire businesses | $ 2,200,000,000 |  |  |  |
Proceeds from issuance of long-term debt | $ 1,500,000,000 |  |  |  |

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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
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