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Investments - Scheduled maturities of available for sale fixed maturities (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2019 USD ($)
Fair Value Percent, Fiscal Year Maturity [Abstract] |
Average life of ABS | 4 years 6 months
Average life of MBS | 4 years 6 months
Fixed maturities |
Amortized Cost Basis, Fiscal Year Maturity [Abstract] |
One year or less | $ 1,549
After one year through five years | 9,016
After five years through ten years | 14,097
After ten years | 4,470
Fixed maturities amortized cost, Subtotal | 29,132
ABS (average life of approximately 4.5 years) | 9,909
MBS (average life of approximately 4.5 years) | 3,377
Amortized Cost | 42,418
Fair Value, Fiscal Year Maturity [Abstract] |
One year or less | 1,561
After one year through five years | 9,177
After five years through ten years | 14,384
After ten years | 4,611
Fixed maturities fair value, Subtotal | 29,733
ABS (average life of approximately 4.5 years) | 10,018
MBS (average life of approximately 4.5 years) | 3,680
Fair Value | $ 43,431
Fair Value Percent, Fiscal Year Maturity [Abstract] |
One year or less | 4.00%
After one year through five years | 21.00%
After five years through ten years | 33.00%
After ten years | 11.00%
Fixed maturities fair value, Subtotal, Percent | 69.00%
ABS (average life of approximately 4.5 years) | 23.00%
MBS (average life of approximately 4.5 years) | 8.00%
Fair value, Total, Percent | 100.00%

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 + Details
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