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Investments (Tables) | 3 Months Ended
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Mar. 31, 2018
Investments [Abstract] |
Schedule for fixed income securities at amortized cost, gross unrealized gains and losses and fair value |
Amortized cost, gross unrealized gains and losses and fair value for fixed income securities
($ in millions) |  | Amortized cost |  | Gross unrealized |  | Fair value
|  | Gains |  | Losses |
March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | $ | 3,373 |  |  | $ | 50 |  |  | $ | (17 | ) |  | $ | 3,406 |
Municipal |  | 8,404 |  |  | 257 |  |  | (92 | ) |  | 8,569 |
Corporate |  | 41,699 |  |  | 763 |  |  | (611 | ) |  | 41,851 |
Foreign government |  | 968 |  |  | 21 |  |  | (10 | ) |  | 979 |
Asset-backed securities (“ABS”) |  | 1,196 |  |  | 11 |  |  | (10 | ) |  | 1,197 |
Residential mortgage-backed securities (“RMBS”) |  | 453 |  |  | 100 |  |  | (3 | ) |  | 550 |
Commercial mortgage-backed securities (“CMBS”) |  | 95 |  |  | 6 |  |  | (2 | ) |  | 99 |
Redeemable preferred stock |  | 21 |  |  | 2 |  |  | — |  |  | 23 |
Total fixed income securities |  | $ | 56,209 |  |  | $ | 1,210 |  |  | $ | (745 | ) |  | $ | 56,674 |
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | $ | 3,580 |  |  | $ | 56 |  |  | $ | (20 | ) |  | $ | 3,616 |
Municipal |  | 8,053 |  |  | 311 |  |  | (36 | ) |  | 8,328 |
Corporate |  | 42,996 |  |  | 1,234 |  |  | (204 | ) |  | 44,026 |
Foreign government |  | 1,005 |  |  | 27 |  |  | (11 | ) |  | 1,021 |
ABS |  | 1,266 |  |  | 13 |  |  | (7 | ) |  | 1,272 |
RMBS |  | 480 |  |  | 101 |  |  | (3 | ) |  | 578 |
CMBS |  | 124 |  |  | 6 |  |  | (2 | ) |  | 128 |
Redeemable preferred stock |  | 21 |  |  | 2 |  |  | — |  |  | 23 |
Total fixed income securities |  | $ | 57,525 |  |  | $ | 1,750 |  |  | $ | (283 | ) |  | $ | 58,992 |
Schedule for fixed income securities based on contractual maturities |
Scheduled maturities for fixed income securities
($ in millions) |  | As of March 31, 2018
| Amortized cost |  | Fair value
Due in one year or less |  | $ | 4,629 |  |  | $ | 4,627 |
Due after one year through five years |  | 28,201 |  |  | 28,199 |
Due after five years through ten years |  | 16,363 |  |  | 16,220 |
Due after ten years |  | 5,272 |  |  | 5,782 |
|  | 54,465 |  |  | 54,828 |
ABS, RMBS and CMBS |  | 1,744 |  |  | 1,846 |
Total |  | $ | 56,209 |  |  | $ | 56,674 |
Schedule of net investment income |
Net investment income
($ in millions) |  | Three months ended March 31,
| 2018 |  | 2017
Fixed income securities |  | $ | 508 |  |  | $ | 518 |
Equity securities |  | 34 |  |  | 44 |
Mortgage loans |  | 51 |  |  | 55 |
Limited partnership interests (1)(2) |  | 180 |  |  | 120 |
Short-term investments |  | 12 |  |  | 6 |
Other |  | 66 |  |  | 56 |
Investment income, before expense |  | 851 |  |  | 799 |
Investment expense |  | (65 | ) |  | (51 | )
Net investment income |  | $ | 786 |  |  | $ | 748 |
(1) | Due to the adoption of the recognition and measurement accounting standard, limited partnerships previously reported using the cost method are now reported at fair value with changes in fair value recognized in net investment income.
(2) | Includes net investment income of $103 million for EMA limited partnership interests and $77 million for limited partnership interests carried at fair value for the three months ended March 31, 2018.
Schedule of realized capital gains and losses by asset type |
Realized capital gains and losses by asset type |  |  |  |
($ in millions) |  | Three months ended March 31,
| 2018 |  | 2017
Fixed income securities |  | $ | (43 | ) |  | $ | 5 |
Equity securities |  | (93 | ) |  | 106 |
Limited partnership interests |  | 10 |  |  | 40 |
Derivatives |  | (8 | ) |  | (15 | )
Other |  | — |  |  | (2 | )
Realized capital gains and losses |  | $ | (134 | ) |  | $ | 134 |
Schedule of realized capital gains and losses by transaction type |
Realized capital gains and losses by transaction type |  |  |  |
($ in millions) |  | Three months ended March 31,
| 2018 |  | 2017
Impairment write-downs (1) |  | $ | (1 | ) |  | $ | (43 | )
Change in intent write-downs (1) |  | — |  |  | (16 | )
Net OTTI losses recognized in earnings |  | (1 | ) |  | (59 | )
Sales (1) |  | (42 | ) |  | 208 |
Valuation of equity investments (1) |  | (83 | ) |  | — |
Valuation and settlements of derivative instruments |  | (8 | ) |  | (15 | )
Realized capital gains and losses |  | $ | (134 | ) |  | $ | 134 |
(1) | Due to the adoption of the recognition and measurement accounting standard, equity securities are reported at fair value with changes in fair value recognized in valuation of equity investments and are no longer included in impairment write-downs, change in intent write-downs and sales.
Valuation changes included in net income for investments |
Valuation changes included in net income for investments still held as of March 31, 2018 |  |
($ in millions) |  | Three months ended March 31, 2018
Equity securities |  | $ | (49 | )
Limited partnership interests carried at fair value |  | 78 |
Total valuation changes |  | $ | 29 |
Schedule of other-than-temporary impairment losses by asset type |
OTTI losses by asset type
($ in millions) |  | Three months ended March 31, 2018 |  | Three months ended March 31, 2017
| Gross |  | Included in OCI |  | Net |  | Gross |  | Included in OCI |  | Net
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (9 | ) |  | $ | 3 |  |  | $ | (6 | )
RMBS |  | — |  |  | — |  |  | — |  |  | (1 | ) |  | (3 | ) |  | (4 | )
CMBS |  | — |  |  | (1 | ) |  | (1 | ) |  | (6 | ) |  | 3 |  |  | (3 | )
Total fixed income securities |  | — |  |  | (1 | ) |  | (1 | ) |  | (16 | ) |  | 3 |  |  | (13 | )
Equity securities (1) |  | — |  |  | — |  |  | — |  |  | (36 | ) |  | — |  |  | (36 | )
Limited partnership interests (1) (2) |  | — |  |  | — |  |  | — |  |  | (7 | ) |  | — |  |  | (7 | )
Other |  | — |  |  | — |  |  | — |  |  | (3 | ) |  | — |  |  | (3 | )
OTTI losses |  | $ | — |  |  | $ | (1 | ) |  | $ | (1 | ) |  | $ | (62 | ) |  | $ | 3 |  |  | $ | (59 | )
(1) | Due to the adopti on of the recognition and measurement accounting standard, equity securities and limited partnerships previously reported using the cost method are now reported at fair value with changes in fair value recognized in net income and are no longer included in the table above.
Schedule of other-than-temporary impairment losses on fixed income securities included in Accumulated Other Comprehensive Income | The total amount of OTTI losses included in AOCI at the time of impairment for fixed income securities, which were not included in earnings, are presented in the following table. The amounts exclude $202 million and $208 million as of March 31, 2018 and December 31, 2017, respectively, of net unrealized gains related to changes in valuation of the fixed income securities subsequent to the impairment measurement date.
OTTI losses included in AOCI at the time of impairment for fixed income securities
($ in millions) |  | March 31, 2018 |  | December 31, 2017
Municipal |  | $ | (5 | ) |  | $ | (5 | )
ABS |  | (12 | ) |  | (15 | )
RMBS |  | (74 | ) |  | (77 | )
CMBS |  | (4 | ) |  | (4 | )
Total |  | $ | (95 | ) |  | $ | (101 | )
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
($ in millions) |  | March 31,
| 2018 |  | 2017
Beginning balance |  | $ | (226 | ) |  | $ | (318 | )
Additional credit loss for securities previously other-than-temporarily impaired |  | (1 | ) |  | (8 | )
Additional credit loss for securities not previously other-than-temporarily impaired |  | — |  |  | (5 | )
Reduction in credit loss for securities disposed or collected |  | 15 |  |  | 37 |
Ending balance |  | $ | (212 | ) |  | $ | (294 | )
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)
March 31, 2018 |  |  | Gains |  | Losses |
Fixed income securities |  | $ | 56,674 |  |  | $ | 1,210 |  |  | $ | (745 | ) |  | $ | 465 |
Short-term investments |  | 3,424 |  |  | — |  |  | — |  |  | — |
Derivative instruments (1) |  | 2 |  |  | 2 |  |  | (3 | ) |  | (1 | )
EMA limited partnerships (2) |  |  |  |  |  |  |  |  |  |  | 1 |
Unrealized net capital gains and losses, pre-tax |  |  |  |  |  |  |  |  |  |  | 465 |
Amounts recognized for: |  |  |  |  |  |  |  |  |  |  |  |
Insurance reserves (3) |  |  |  |  |  |  |  |  |  |  | (119 | )
DAC and DSI (4) |  |  |  |  |  |  |  |  |  |  | (109 | )
Amounts recognized |  |  |  |  |  |  |  |  |  |  | (228 | )
Deferred income taxes |  |  |  |  |  |  |  |  |  |  | (50 | )
Unrealized net capital gains and losses, after-tax |  |  |  |  |  |  |  |  |  |  | $ | 187 |
(1) | Included in the fair value of derivative instruments is $2 million classified as liabilities.
(2) | Unrealized net capital gains and losses for limited partnership interests represent the Company’s share of EMA limited partnerships’ other comprehensive income. Fair value and gross unrealized gains and losses are not applicable.
(3) | The insurance reserves adjustment represents the amount by which the reserve balance would increase if the net unrealized gains in the applicable product portfolios were realized and reinvested at current lower interest rates, resulting in a premium deficiency. This adjustment primarily relates to structured settlement annuities with life contingencies (a type of immediate fixed annuities).
(4) | The DAC and DSI adjustment balance represents the amount by which the amortization of DAC and DSI would increase or decrease if the unrealized gains or losses in the respective product portfolios were realized.
Unrealized net capital gains and losses included in AOCI
($ in millions) |  | Fair value |  | Gross unrealized |  | Unrealized net gains (losses)
December 31, 2017 |  |  | Gains |  | Losses |
Fixed income securities |  | $ | 58,992 |  |  | $ | 1,750 |  |  | $ | (283 | ) |  | $ | 1,467 |
Equity securities |  | 6,621 |  |  | 1,172 |  |  | (12 | ) |  | 1,160 |
Short-term investments |  | 1,944 |  |  | — |  |  | — |  |  | — |
Derivative instruments (1) |  | 2 |  |  | 2 |  |  | (3 | ) |  | (1 | )
EMA limited partnerships |  |  |  |  |  |  |  |  |  |  | 1 |
Unrealized net capital gains and losses, pre-tax |  |  |  |  |  |  |  |  |  |  | 2,627 |
Amounts recognized for: |  |  |  |  |  |  |  |  |  |  |  |
Insurance reserves |  |  |  |  |  |  |  |  |  |  | (315 | )
DAC and DSI |  |  |  |  |  |  |  |  |  |  | (196 | )
Amounts recognized |  |  |  |  |  |  |  |  |  |  | (511 | )
Deferred income taxes |  |  |  |  |  |  |  |  |  |  | (454 | )
Unrealized net capital gains and losses, after-tax |  |  |  |  |  |  |  |  |  |  | $ | 1,662 |
(1) Included in the fair value of derivative instruments is $2 million classified as liabilities.
Schedule of change in unrealized net capital gains and losses |
Change in unrealized net capital gains and losses
($ in millions) |  | Three months ended March 31, 2018
Fixed income securities |  | $ | (1,002 | )
Equity securities (1) |  | — |
Total |  | (1,002 | )
Amounts recognized for: |  |  |
Insurance reserves |  | 196 |
DAC and DSI |  | 87 |
Amounts recognized |  | 283 |
Deferred income taxes |  | 154 |
Decrease in unrealized net capital gains and losses, after-tax |  | $ | (565 | )
(1) Upon adoption of the recognition and measurement accounting standard on January 1, 2018, $1.16 billion of pre-tax unrealized net capital gains for equity securities were reclassified from AOCI to retained income. See Note 1 of the condensed consolidated financial statements.
Schedule of gross unrealized losses and fair value of available for sale securities by length of time |
Gross unrealized losses and fair value by type and length of time held in a continuous unrealized loss position
($ 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 |
March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed income securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | 57 |  |  | $ | 1,514 |  |  | $ | (16 | ) |  | 13 |  |  | $ | 74 |  |  | $ | (1 | ) |  | $ | (17 | )
Municipal |  | 2,535 |  |  | 4,626 |  |  | (74 | ) |  | 160 |  |  | 323 |  |  | (18 | ) |  | (92 | )
Corporate |  | 1,656 |  |  | 22,720 |  |  | (458 | ) |  | 199 |  |  | 3,006 |  |  | (153 | ) |  | (611 | )
Foreign government |  | 43 |  |  | 531 |  |  | (9 | ) |  | 4 |  |  | 39 |  |  | (1 | ) |  | (10 | )
ABS |  | 80 |  |  | 541 |  |  | (6 | ) |  | 7 |  |  | 11 |  |  | (4 | ) |  | (10 | )
RMBS |  | 139 |  |  | 36 |  |  | (1 | ) |  | 181 |  |  | 43 |  |  | (2 | ) |  | (3 | )
CMBS |  | — |  |  | — |  |  | — |  |  | 6 |  |  | 24 |  |  | (2 | ) |  | (2 | )
Total fixed income securities |  | 4,510 |  |  | 29,968 |  |  | (564 | ) |  | 570 |  |  | 3,520 |  |  | (181 | ) |  | (745 | )
Investment grade fixed income securities |  | 4,161 |  |  | $ | 27,020 |  |  | $ | (470 | ) |  | 516 |  |  | $ | 3,284 |  |  | $ | (153 | ) |  | $ | (623 | )
Below investment grade fixed income securities |  | 349 |  |  | 2,948 |  |  | (94 | ) |  | 54 |  |  | 236 |  |  | (28 | ) |  | (122 | )
Total fixed income securities |  | 4,510 |  |  | $ | 29,968 |  |  | $ | (564 | ) |  | 570 |  |  | $ | 3,520 |  |  | $ | (181 | ) |  | $ | (745 | )
December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed income securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and agencies |  | 66 |  |  | $ | 2,829 |  |  | $ | (18 | ) |  | 18 |  |  | $ | 182 |  |  | $ | (2 | ) |  | $ | (20 | )
Municipal |  | 1,756 |  |  | 3,143 |  |  | (24 | ) |  | 165 |  |  | 349 |  |  | (12 | ) |  | (36 | )
Corporate |  | 781 |  |  | 11,616 |  |  | (102 | ) |  | 208 |  |  | 3,289 |  |  | (102 | ) |  | (204 | )
Foreign government |  | 45 |  |  | 580 |  |  | (10 | ) |  | 5 |  |  | 44 |  |  | (1 | ) |  | (11 | )
ABS |  | 57 |  |  | 476 |  |  | (3 | ) |  | 9 |  |  | 34 |  |  | (4 | ) |  | (7 | )
RMBS |  | 118 |  |  | 35 |  |  | (1 | ) |  | 181 |  |  | 50 |  |  | (2 | ) |  | (3 | )
CMBS |  | 2 |  |  | 1 |  |  | — |  |  | 6 |  |  | 23 |  |  | (2 | ) |  | (2 | )
Redeemable preferred stock |  | 1 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total fixed income securities |  | 2,826 |  |  | 18,680 |  |  | (158 | ) |  | 592 |  |  | 3,971 |  |  | (125 | ) |  | (283 | )
Equity securities |  | 127 |  |  | 369 |  |  | (12 | ) |  | 2 |  |  | — |  |  | — |  |  | (12 | )
Total fixed income and equity securities |  | 2,953 |  |  | $ | 19,049 |  |  | $ | (170 | ) |  | 594 |  |  | $ | 3,971 |  |  | $ | (125 | ) |  | $ | (295 | )
Investment grade fixed income securities |  | 2,706 |  |  | $ | 17,668 |  |  | $ | (134 | ) |  | 535 |  |  | $ | 3,751 |  |  | $ | (98 | ) |  | $ | (232 | )
Below investment grade fixed income securities |  | 120 |  |  | 1,012 |  |  | (24 | ) |  | 57 |  |  | 220 |  |  | (27 | ) |  | (51 | )
Total fixed income securities |  | 2,826 |  |  | $ | 18,680 |  |  | $ | (158 | ) |  | 592 |  |  | $ | 3,971 |  |  | $ | (125 | ) |  | $ | (283 | )
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) |  | March 31, 2018 |  | December 31, 2017
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 |  | $ | 27 |  |  | $ | — |  |  | $ | 27 |  |  | $ | 3 |  |  | $ | — |  |  | $ | 3 |
1.0 - 1.25 |  | 355 |  |  | — |  |  | 355 |  |  | 345 |  |  | — |  |  | 345 |
1.26 - 1.50 |  | 1,165 |  |  | 30 |  |  | 1,195 |  |  | 1,141 |  |  | 30 |  |  | 1,171 |
Above 1.50 |  | 2,998 |  |  | 100 |  |  | 3,098 |  |  | 2,949 |  |  | 62 |  |  | 3,011 |
Total non-impaired mortgage loans |  | $ | 4,545 |  |  | $ | 130 |  |  | $ | 4,675 |  |  | $ | 4,438 |  |  | $ | 92 |  |  | $ | 4,530 |
Net carrying value of impaired mortgage loans |
Net carrying value of impaired mortgage loans
($ in millions) |  | March 31, 2018 |  | December 31, 2017
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) |  | March 31, 2018 |  | December 31, 2017
Bank loans |  | $ | 1,681 |  |  | $ | 1,702 |
Policy loans |  | 900 |  |  | 905 |
Real estate |  | 763 |  |  | 632 |
Agent loans |  | 562 |  |  | 538 |
Other |  | 186 |  |  | 195 |
Total |  | $ | 4,092 |  |  | $ | 3,972 |

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- Definition Tabular disclosure of investment income, including, but not limited to, interest and dividend income and amortization of discount (premium) derived from debt and equity securities. Excludes realized and unrealized gain (loss) on investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(a),(b)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27340-111563 + Details
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