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Investments (Tables) | 6 Months Ended
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Jun. 30, 2019
Investments [Abstract] |
Schedule for fixed income securities at amortized cost, gross unrealized gains and losses and fair value |
Amortized cost, gross unrealized gains (losses) and fair value for fixed income securities
($ in millions) |  | Amortized cost |  | Gross unrealized |  | Fair value
|  | Gains |  | Losses |
June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | $ | 3,980 |  |  | $ | 180 |  |  | $ | — |  |  | $ | 4,160 |
Municipal |  | 8,378 |  |  | 516 |  |  | (3 | ) |  | 8,891 |
Corporate |  | 41,620 |  |  | 1,731 |  |  | (78 | ) |  | 43,273 |
Foreign government |  | 766 |  |  | 26 |  |  | (1 | ) |  | 791 |
Asset-backed securities (“ABS”) |  | 853 |  |  | 11 |  |  | (5 | ) |  | 859 |
Residential mortgage-backed securities (“RMBS”) |  | 325 |  |  | 94 |  |  | (1 | ) |  | 418 |
Commercial mortgage-backed securities (“CMBS”) |  | 65 |  |  | 8 |  |  | (3 | ) |  | 70 |
Redeemable preferred stock |  | 21 |  |  | 1 |  |  | — |  |  | 22 |
Total fixed income securities |  | $ | 56,008 |  |  | $ | 2,567 |  |  | $ | (91 | ) |  | $ | 58,484 |
December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | $ | 5,386 |  |  | $ | 137 |  |  | $ | (6 | ) |  | $ | 5,517 |
Municipal |  | 8,963 |  |  | 249 |  |  | (43 | ) |  | 9,169 |
Corporate |  | 40,536 |  |  | 490 |  |  | (890 | ) |  | 40,136 |
Foreign government |  | 739 |  |  | 13 |  |  | (5 | ) |  | 747 |
ABS |  | 1,049 |  |  | 6 |  |  | (10 | ) |  | 1,045 |
RMBS |  | 377 |  |  | 89 |  |  | (2 | ) |  | 464 |
CMBS |  | 63 |  |  | 8 |  |  | (1 | ) |  | 70 |
Redeemable preferred stock |  | 21 |  |  | 1 |  |  | — |  |  | 22 |
Total fixed income securities |  | $ | 57,134 |  |  | $ | 993 |  |  | $ | (957 | ) |  | $ | 57,170 |
Schedule for fixed income securities based on contractual maturities |
Scheduled maturities for fixed income securities
($ in millions) |  | As of June 30, 2019
| Amortized cost |  | Fair value
Due in one year or less |  | $ | 2,827 |  |  | $ | 2,849 |
Due after one year through five years |  | 25,060 |  |  | 25,659 |
Due after five years through ten years |  | 17,602 |  |  | 18,394 |
Due after ten years |  | 9,276 |  |  | 10,235 |
|  | 54,765 |  |  | 57,137 |
ABS, RMBS and CMBS |  | 1,243 |  |  | 1,347 |
Total |  | $ | 56,008 |  |  | $ | 58,484 |
Schedule of net investment income |
Net investment income |  |  |  |
($ in millions) |  | Three months ended June 30, |  | Six months ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Fixed income securities |  | $ | 543 |  |  | $ | 509 |  |  | $ | 1,081 |  |  | $ | 1,017 |
Equity securities |  | 68 |  |  | 61 |  |  | 98 |  |  | 95 |
Mortgage loans |  | 54 |  |  | 60 |  |  | 107 |  |  | 111 |
Limited partnership interests |  | 254 |  |  | 173 |  |  | 263 |  |  | 353 |
Short-term investments |  | 26 |  |  | 19 |  |  | 52 |  |  | 31 |
Other |  | 67 |  |  | 68 |  |  | 130 |  |  | 134 |
Investment income, before expense |  | 1,012 |  |  | 890 |  |  | 1,731 |  |  | 1,741 |
Investment expense |  | (70 | ) |  | (66 | ) |  | (141 | ) |  | (131 | )
Net investment income |  | $ | 942 |  |  | $ | 824 |  |  | $ | 1,590 |  |  | $ | 1,610 |
Schedule of realized capital gains and losses by asset type |
Realized capital gains (losses) by asset type |  |  |  |  |  |  |  |
($ in millions) |  | Three months ended June 30, |  | Six months ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Fixed income securities |  | $ | 79 |  |  | $ | (80 | ) |  | $ | 143 |  |  | $ | (123 | )
Equity securities |  | 178 |  |  | 74 |  |  | 731 |  |  | (19 | )
Mortgage loans |  | — |  |  | 2 |  |  | — |  |  | 2 |
Limited partnership interests |  | 21 |  |  | (43 | ) |  | 93 |  |  | (33 | )
Derivatives |  | 22 |  |  | 23 |  |  | (24 | ) |  | 15 |
Other |  | 24 |  |  | (1 | ) |  | 43 |  |  | (1 | )
Realized capital gains and losses |  | $ | 324 |  |  | $ | (25 | ) |  | $ | 986 |  |  | $ | (159 | )
Schedule of realized capital gains and losses by transaction type |
Realized capital gains (losses) by transaction type |  |  |  |  |  |  |  |
($ in millions) |  | Three months ended June 30, |  | Six months ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Impairment write-downs |  | $ | (15 | ) |  | $ | (4 | ) |  | $ | (29 | ) |  | $ | (5 | )
Sales |  | 117 |  |  | (75 | ) |  | 212 |  |  | (117 | )
Valuation of equity investments (1) |  | 200 |  |  | 34 |  |  | 827 |  |  | (49 | )
Valuation and settlements of derivative instruments |  | 22 |  |  | 20 |  |  | (24 | ) |  | 12 |
Realized capital gains and losses |  | $ | 324 |  |  | $ | (25 | ) |  | $ | 986 |  |  | $ | (159 | )
(1) Includes valuation of equity securities and certain limited partnership interests where the underlying assets are predominately public equity securities
Valuation changes included in net income for investments | The following table presents the net pre-tax appreciation (decline) during 2019 and 2018 of equity securities and limited partnership interests carried at fair value still held as of June 30, 2019 and June 30, 2018 recognized in net income.
Net appreciation (decline) recognized in net income |  |  |  |  |  |
($ in millions) |  | Three months ended June 30, |  | Six months ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Equity securities |  | $ | 207 |  |  | $ | 94 |  |  | $ | 688 |  |  | $ | 71 |
Limited partnership interests carried at fair value |  | 95 |  |  | 28 |  |  | 59 |  |  | 106 |
Total |  | $ | 302 |  |  | $ | 122 |  |  | $ | 747 |  |  | $ | 177 |
Schedule of other-than-temporary impairment losses by asset type |
OTTI losses by asset type
($ in millions) |  | Three months ended |  | Three months ended
| June 30, 2019 |  | June 30, 2018
| Gross |  | Included in OCI |  | Net |  | Gross |  | Included in OCI |  | Net
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate |  | $ | (3 | ) |  | $ | (4 | ) |  | $ | (7 | ) |  | $ | — |  |  | $ | — |  |  | $ | — |
ABS |  | (1 | ) |  | (1 | ) |  | (2 | ) |  | (1 | ) |  | — |  |  | (1 | )
RMBS |  | — |  |  | — |  |  | — |  |  | (1 | ) |  | — |  |  | (1 | )
CMBS |  | (2 | ) |  | 2 |  |  | — |  |  | — |  |  | — |  |  | — |
Total fixed income securities |  | (6 | ) |  | (3 | ) |  | (9 | ) |  | (2 | ) |  | — |  |  | (2 | )
Limited partnership interests |  | (2 | ) |  | — |  |  | (2 | ) |  | (1 | ) |  | — |  |  | (1 | )
Other |  | (4 | ) |  | — |  |  | (4 | ) |  | (1 | ) |  | — |  |  | (1 | )
OTTI losses |  | $ | (12 | ) |  | $ | (3 | ) |  | $ | (15 | ) |  | $ | (4 | ) |  | $ | — |  |  | $ | (4 | )
|  | Six months ended |  | Six months ended
| June 30, 2019 |  | June 30, 2018
| Gross |  | Included in OCI |  | Net |  | Gross |  | Included in OCI |  | Net
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate |  | $ | (5 | ) |  | $ | (2 | ) |  | $ | (7 | ) |  | $ | — |  |  | $ | — |  |  | $ | — |
ABS |  | (3 | ) |  | — |  |  | (3 | ) |  | (1 | ) |  | — |  |  | (1 | )
RMBS |  | — |  |  | (1 | ) |  | (1 | ) |  | (1 | ) |  | — |  |  | (1 | )
CMBS |  | (2 | ) |  | 2 |  |  | — |  |  | — |  |  | (1 | ) |  | (1 | )
Total fixed income securities |  | (10 | ) |  | (1 | ) |  | (11 | ) |  | (2 | ) |  | (1 | ) |  | (3 | )
Limited partnership interests |  | (3 | ) |  | — |  |  | (3 | ) |  | (1 | ) |  | — |  |  | (1 | )
Other |  | (15 | ) |  | — |  |  | (15 | ) |  | (1 | ) |  | — |  |  | (1 | )
OTTI losses |  | $ | (28 | ) |  | $ | (1 | ) |  | $ | (29 | ) |  | $ | (4 | ) |  | $ | (1 | ) |  | $ | (5 | )
Schedule of other-than-temporary impairment losses on fixed income securities included in Accumulated Other Comprehensive Income |
OTTI losses included in AOCI at the time of impairment for fixed income securities which were not included in earnings
($ in millions) |  | June 30, 2019 |  | December 31, 2018
Municipal |  | $ | (5 | ) |  | $ | (5 | )
Corporate |  | — |  |  | (2 | )
ABS |  | (10 | ) |  | (10 | )
RMBS |  | (61 | ) |  | (67 | )
CMBS |  | (4 | ) |  | (2 | )
Total |  | $ | (80 | ) |  | $ | (86 | )
Schedule of credit losses on fixed income securities recognized in earnings |
Rollforward of the cumulative credit losses recognized in earnings for fixed income securities held as of June 30,
($ in millions) |  | Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Beginning balance |  | $ | (202 | ) |  | $ | (212 | ) |  | $ | (204 | ) |  | $ | (226 | )
Additional credit loss for securities previously other-than-temporarily impaired |  | (6 | ) |  | (1 | ) |  | (8 | ) |  | (2 | )
Additional credit loss for securities not previously other-than-temporarily impaired |  | (3 | ) |  | (1 | ) |  | (3 | ) |  | (1 | )
Reduction in credit loss for securities disposed or collected |  | 3 |  |  | 7 |  |  | 7 |  |  | 22 |
Change in credit loss due to accretion of increase in cash flows |  | — |  |  | 1 |  |  | — |  |  | 1 |
Ending balance |  | $ | (208 | ) |  | $ | (206 | ) |  | $ | (208 | ) |  | $ | (206 | )
Schedule of unrealized net capital gains and losses |
Unrealized net capital gains and losses included in AOCI
($ in millions) |  | Fair value |  | Gross unrealized |  | Unrealized net gains (losses)
June 30, 2019 |  |  | Gains |  | Losses |
Fixed income securities |  | $ | 58,484 |  |  | $ | 2,567 |  |  | $ | (91 | ) |  | $ | 2,476 |
Short-term investments |  | 3,740 |  |  | — |  |  | — |  |  | — |
Derivative instruments |  | — |  |  | — |  |  | (3 | ) |  | (3 | )
Equity method of accounting (“EMA”) limited partnerships (1) |  |  |  |  |  |  |  |  |  |  | (1 | )
Unrealized net capital gains and losses, pre-tax |  |  |  |  |  |  |  |  |  |  | 2,472 |
Amounts recognized for: |  |  |  |  |  |  |  |  |  |  |  |
Insurance reserves (2) |  |  |  |  |  |  |  |  |  |  | (178 | )
DAC and DSI (3) |  |  |  |  |  |  |  |  |  |  | (194 | )
Amounts recognized |  |  |  |  |  |  |  |  |  |  | (372 | )
Deferred income taxes |  |  |  |  |  |  |  |  |  |  | (446 | )
Unrealized net capital gains and losses, after-tax |  |  |  |  |  |  |  |  |  |  | $ | 1,654 |
(1) | Unrealized net capital gains and losses for limited partnership interests represent the Company’s share of EMA limited partnerships’ OCI. Fair value and gross unrealized gains and losses are not applicable.
(2) | The insurance reserves adjustment represents the amount by which the reserve balance would increase if the net unrealized gains in the applicable product portfolios were realized and reinvested at lower interest rates, resulting in a premium deficiency. This adjustment primarily relates to structured settlement annuities with life contingencies (a type of immediate fixed annuities).
(3) | The DAC and DSI adjustment balance represents the amount by which the amortization of DAC and DSI would increase or decrease if the unrealized gains or losses in the respective product portfolios were realized.
Unrealized net capital gains and losses included in AOCI
($ in millions) |  | Fair value |  | Gross unrealized |  | Unrealized net gains (losses)
December 31, 2018 |  |  | Gains |  | Losses |
Fixed income securities |  | $ | 57,170 |  |  | $ | 993 |  |  | $ | (957 | ) |  | $ | 36 |
Short-term investments |  | 3,027 |  |  | — |  |  | — |  |  | — |
Derivative instruments |  | — |  |  | — |  |  | (3 | ) |  | (3 | )
EMA limited partnerships |  |  |  |  |  |  |  |  |  |  | — |
Unrealized net capital gains and losses, pre-tax |  |  |  |  |  |  |  |  |  |  | 33 |
Amounts recognized for: |  |  |  |  |  |  |  |  |  |  |  |
Insurance reserves |  |  |  |  |  |  |  |  |  |  | — |
DAC and DSI |  |  |  |  |  |  |  |  |  |  | (33 | )
Amounts recognized |  |  |  |  |  |  |  |  |  |  | (33 | )
Deferred income taxes |  |  |  |  |  |  |  |  |  |  | (2 | )
Unrealized net capital gains and losses, after-tax |  |  |  |  |  |  |  |  |  |  | $ | (2 | )
Schedule of change in unrealized net capital gains and losses |
Change in unrealized net capital gains (losses)
($ in millions) |  | Six months ended June 30, 2019
Fixed income securities |  | $ | 2,440 |
Derivative instruments |  | — |
EMA limited partnerships |  | (1 | )
Total |  | 2,439 |
Amounts recognized for: |  |  |
Insurance reserves |  | (178 | )
DAC and DSI |  | (161 | )
Amounts recognized |  | (339 | )
Deferred income taxes |  | (444 | )
Increase in unrealized net capital gains and losses, after-tax |  | $ | 1,656 |
Schedule of gross unrealized losses and fair value of available for sale securities by length of time |
Gross unrealized losses by unrealized loss position and credit quality as of June 30, 2019
($ in millions) |  | Investment grade |  | Below investment grade |  | Total
Fixed income securities with unrealized loss position less than 20% of amortized cost (1) (2) |  | $ | (35 | ) |  | $ | (38 | ) |  | $ | (73 | )
Fixed income securities with unrealized loss position greater than or equal to 20% of amortized cost (3) (4) |  | (12 | ) |  | (6 | ) |  | (18 | )
Total unrealized losses |  | $ | (47 | ) |  | $ | (44 | ) |  | $ | (91 | )
(1) | Includes $18 million of below investment grade fixed income securities that have been in an unrealized loss position for less than twelve months.
(2) | Related to securities with an unrealized loss position less than 20% of amortized cost, the degree of which suggests that these securities do not pose a high risk of being other-than-temporarily impai red.
(3) | Includes $2 million of below investment grade fixed income securities that have been in unrealized loss position for a period of twelve or more consecutive months.
(4) Evaluated based on factors such as discounted cash flows and the financial condition and near-term and long-term prospects of the issue or issuer and were determined to have adequate resources to fulfill contractual obligations.
Gross unrealized losses and fair value by type and length of time held in a continuous unrealized loss position
($ in millions) |  | Less than 12 months |  | 12 months or more |  | Total unrealized losses
| Number of issues |  | Fair value |  | Unrealized losses |  | Number of issues |  | Fair value |  | Unrealized losses |
June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed income securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | — |  |  | $ | — |  |  | $ | — |  |  | 21 |  |  | $ | 63 |  |  | $ | — |  |  | $ | — |
Municipal |  | 85 |  |  | 133 |  |  | — |  |  | 103 |  |  | 98 |  |  | (3 | ) |  | (3 | )
Corporate |  | 129 |  |  | 1,120 |  |  | (19 | ) |  | 271 |  |  | 3,054 |  |  | (59 | ) |  | (78 | )
Foreign government |  | 2 |  |  | 46 |  |  | — |  |  | 6 |  |  | 141 |  |  | (1 | ) |  | (1 | )
ABS |  | 18 |  |  | 121 |  |  | (2 | ) |  | 18 |  |  | 97 |  |  | (3 | ) |  | (5 | )
RMBS |  | 52 |  |  | 8 |  |  | — |  |  | 165 |  |  | 39 |  |  | (1 | ) |  | (1 | )
CMBS |  | 2 |  |  | 8 |  |  | (3 | ) |  | 1 |  |  | — |  |  | — |  |  | (3 | )
Redeemable preferred stock |  | 1 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total fixed income securities |  | 289 |  |  | $ | 1,436 |  |  | $ | (24 | ) |  | 585 |  |  | $ | 3,492 |  |  | $ | (67 | ) |  | $ | (91 | )
Investment grade fixed income securities |  | 201 |  |  | $ | 801 |  |  | $ | (3 | ) |  | 514 |  |  | $ | 3,068 |  |  | $ | (44 | ) |  | $ | (47 | )
Below investment grade fixed income securities |  | 88 |  |  | 635 |  |  | (21 | ) |  | 71 |  |  | 424 |  |  | (23 | ) |  | (44 | )
Total fixed income securities |  | 289 |  |  | $ | 1,436 |  |  | $ | (24 | ) |  | 585 |  |  | $ | 3,492 |  |  | $ | (67 | ) |  | $ | (91 | )
December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed income securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | 11 |  |  | $ | 55 |  |  | $ | — |  |  | 38 |  |  | $ | 364 |  |  | $ | (6 | ) |  | $ | (6 | )
Municipal |  | 943 |  |  | 1,633 |  |  | (10 | ) |  | 1,147 |  |  | 1,554 |  |  | (33 | ) |  | (43 | )
Corporate |  | 1,735 |  |  | 19,243 |  |  | (543 | ) |  | 645 |  |  | 8,374 |  |  | (347 | ) |  | (890 | )
Foreign government |  | 7 |  |  | 20 |  |  | (1 | ) |  | 27 |  |  | 412 |  |  | (4 | ) |  | (5 | )
ABS |  | 64 |  |  | 454 |  |  | (5 | ) |  | 28 |  |  | 161 |  |  | (5 | ) |  | (10 | )
RMBS |  | 166 |  |  | 30 |  |  | — |  |  | 195 |  |  | 52 |  |  | (2 | ) |  | (2 | )
CMBS |  | 3 |  |  | 7 |  |  | — |  |  | 2 |  |  | — |  |  | (1 | ) |  | (1 | )
Redeemable preferred stock |  | 1 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total fixed income securities |  | 2,930 |  |  | $ | 21,442 |  |  | $ | (559 | ) |  | 2,082 |  |  | $ | 10,917 |  |  | $ | (398 | ) |  | $ | (957 | )
Investment grade fixed income securities |  | 2,348 |  |  | $ | 17,485 |  |  | $ | (331 | ) |  | 2,021 |  |  | $ | 10,626 |  |  | $ | (360 | ) |  | $ | (691 | )
Below investment grade fixed income securities |  | 582 |  |  | 3,957 |  |  | (228 | ) |  | 61 |  |  | 291 |  |  | (38 | ) |  | (266 | )
Total fixed income securities |  | 2,930 |  |  | $ | 21,442 |  |  | $ | (559 | ) |  | 2,082 |  |  | $ | 10,917 |  |  | $ | (398 | ) |  | $ | (957 | )
Carrying value of non-impaired fixed and variable rate mortgage loans by debt service coverage ratio distribution |
Carrying value of non-impaired mortgage loans summarized by debt service coverage ratio distribution
($ in millions) |  | June 30, 2019 |  | December 31, 2018
Debt service coverage ratio distribution |  | Fixed rate mortgage loans |  | Variable rate mortgage loans |  | Total |  | Fixed rate mortgage loans |  | Variable rate mortgage loans |  | Total
Below 1.0 |  | $ | 2 |  |  | $ | 31 |  |  | $ | 33 |  |  | $ | 6 |  |  | $ | 31 |  |  | $ | 37 |
1.0 - 1.25 |  | 222 |  |  | — |  |  | 222 |  |  | 273 |  |  | — |  |  | 273 |
1.26 - 1.50 |  | 1,329 |  |  | — |  |  | 1,329 |  |  | 1,192 |  |  | — |  |  | 1,192 |
Above 1.50 |  | 2,996 |  |  | 103 |  |  | 3,099 |  |  | 3,063 |  |  | 101 |  |  | 3,164 |
Total non-impaired mortgage loans |  | $ | 4,549 |  |  | $ | 134 |  |  | $ | 4,683 |  |  | $ | 4,534 |  |  | $ | 132 |  |  | $ | 4,666 |
Net carrying value of impaired mortgage loans |
Net carrying value of impaired mortgage loans
($ in millions) |  | June 30, 2019 |  | December 31, 2018
Impaired mortgage loans with a valuation allowance |  | $ | 4 |  |  | $ | 4 |
Impaired mortgage loans without a valuation allowance |  | — |  |  | — |
Total impaired mortgage loans |  | $ | 4 |  |  | $ | 4 |
Valuation allowance on impaired mortgage loans |  | $ | 3 |  |  | $ | 3 |
Schedule of other investments by type |
Other investments by asset type
($ in millions) |  | June 30, 2019 |  | December 31, 2018
Bank loans |  | $ | 1,259 |  |  | $ | 1,350 |
Policy loans |  | 880 |  |  | 891 |
Real estate |  | 872 |  |  | 791 |
Agent loans |  | 654 |  |  | 620 |
Derivatives and other |  | 191 |  |  | 200 |
Total |  | $ | 3,856 |  |  | $ | 3,852 |

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