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v3.19.3.a.u2

Fair Value - Carrying Value and Fair Value Classified by Level (Details) - Nonrecurring - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Carrying Value |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Mortgage loans | $ 1,213 | $ 1,361
Equity securities | 149 | 140
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Investment contracts with a fixed maturity | 5 | 5
Investment contracts without a fixed maturity | 372 | 382
Long-term debt | 68,480 | 72,709
Estimated Fair Value |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Mortgage loans | 1,239 | 1,366
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Investment contracts with a fixed maturity | 5 | 5
Investment contracts without a fixed maturity | 392 | 357
Long-term debt | 74,306 | 71,252
Estimated Fair Value | Level 1 |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Mortgage loans | 0 | 0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Investment contracts with a fixed maturity | 0 | 0
Investment contracts without a fixed maturity | 0 | 0
Long-term debt | 74,306 | 71,252
Estimated Fair Value | Level 2 |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Mortgage loans | 0 | 0
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Investment contracts with a fixed maturity | 0 | 0
Investment contracts without a fixed maturity | 0 | 0
Long-term debt | 0 | 0
Estimated Fair Value | Level 3 |  |
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] |  |
Mortgage loans | 1,239 | 1,366
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] |  |
Investment contracts with a fixed maturity | 5 | 5
Investment contracts without a fixed maturity | 392 | 357
Long-term debt | $ 0 | $ 0

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- Definition Investment Contracts Without A Fixed Maturity, Fair Value Disclosure. + References No definition available. + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 + Details
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- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714 + Details
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