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Investments (Details 4) - USD ($) $ in Millions | Sep. 30, 2015 | Jun. 30, 2015 | [1] | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013
--- | --- | --- | --- | --- | --- | --- | ---
Unrealized gain on: |  |  |  |  |  |  |  |  |
Pretax |  | $ 764 |  |  | $ 1,162 |  |  |  |
Deferred Tax and Amounts Attributable to Noncontrolling Interests |  | (275) |  |  | (419) |  |  |  |
Net |  | 489 | [1] | $ 587 | 743 | [1] | $ 726 | $ 805 | $ 563
Fixed maturities - annuity segment [Member] |  |  |  |  |  |  |  |  |
Unrealized gain on: |  |  |  |  |  |  |  |  |
Pretax | [2] | 868 |  |  | 1,157 |  |  |  |
Deferred Tax and Amounts Attributable to Noncontrolling Interests | [2] | (304) |  |  | (405) |  |  |  |
Net | [2] | 564 |  |  | 752 |  |  |  |
Fixed maturities - all other [Member] |  |  |  |  |  |  |  |  |
Unrealized gain on: |  |  |  |  |  |  |  |  |
Pretax |  | 378 |  |  | 503 |  |  |  |
Deferred Tax and Amounts Attributable to Noncontrolling Interests |  | (140) |  |  | (185) |  |  |  |
Net |  | 238 |  |  | 318 |  |  |  |
Equity securities [Member] |  |  |  |  |  |  |  |  |
Unrealized gain on: |  |  |  |  |  |  |  |  |
Pretax |  | 68 |  |  | 218 |  |  |  |
Deferred Tax and Amounts Attributable to Noncontrolling Interests |  | (24) |  |  | (79) |  |  |  |
Net |  | 44 |  |  | 139 |  |  |  |
Deferred policy acquisition costs - annuity segment [Member] |  |  |  |  |  |  |  |  |
Unrealized gain on: |  |  |  |  |  |  |  |  |
Pretax |  | (391) |  |  | (531) |  |  |  |
Deferred Tax and Amounts Attributable to Noncontrolling Interests |  | 137 |  |  | 186 |  |  |  |
Net |  | (254) |  |  | (345) |  |  |  |
Annuity benefits accumulated [Member] |  |  |  |  |  |  |  |  |
Unrealized gain on: |  |  |  |  |  |  |  |  |
Pretax |  | (112) |  |  | (112) |  |  |  |
Deferred Tax and Amounts Attributable to Noncontrolling Interests |  | 39 |  |  | 39 |  |  |  |
Net |  | (73) |  |  | (73) |  |  |  |
Life, accident and health reserves [Member] |  |  |  |  |  |  |  |  |
Unrealized gain on: |  |  |  |  |  |  |  |  |
Pretax |  | (67) |  |  | (104) |  |  |  |
Deferred Tax and Amounts Attributable to Noncontrolling Interests |  | 24 |  |  | 36 |  |  |  |
Net |  | (43) |  |  | (68) |  |  |  |
Unearned revenue [Member] |  |  |  |  |  |  |  |  |
Unrealized gain on: |  |  |  |  |  |  |  |  |
Pretax |  | 20 |  |  | 31 |  |  |  |
Deferred Tax and Amounts Attributable to Noncontrolling Interests |  | (7) |  |  | (11) |  |  |  |
Net |  | $ 13 |  |  | $ 20 |  |  |  |
[1] | Includes net unrealized gains of $53 million at September 30, 2015, $57 million at June 30, 2015 and $58 million at December 31, 2014 related to securities for which only the credit portion of an other-than-temporary impairment has been recorded in earnings.
[2] | Unrealized gains on fixed maturity investments supporting AFG’s annuity benefits accumulated.

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