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Investments | 6 Months Ended
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Jun. 30, 2019
Investments [Abstract] |
Investments | Investments Total investments at June 30, 2019 and December 31, 2018 were as follows:
| June 30, 2019 |  | December 31, 2018
In millions | Current |  | Long-term |  | Total |  | Current |  | Long-term |  | Total
Debt securities available for sale | $ | 2,270 |  |  | $ | 14,199 |  |  | $ | 16,469 |  |  | $ | 2,359 |  |  | $ | 12,896 |  |  | $ | 15,255 |
Mortgage loans | 175 |  |  | 1,170 |  |  | 1,345 |  |  | 145 |  |  | 1,216 |  |  | 1,361 |
Other investments | 17 |  |  | 1,604 |  |  | 1,621 |  |  | 18 |  |  | 1,620 |  |  | 1,638 |
Total investments | $ | 2,462 |  |  | $ | 16,973 |  |  | $ | 19,435 |  |  | $ | 2,522 |  |  | $ | 15,732 |  |  | $ | 18,254 |
Debt Securities Debt securities available for sale at June 30, 2019 and December 31, 2018 were as follows:
In millions | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
June 30, 2019 |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |
U.S. government securities | $ | 1,675 |  |  | $ | 66 |  |  | $ | — |  |  | $ | 1,741 |
States, municipalities and political subdivisions | 2,363 |  |  | 103 |  |  | — |  |  | 2,466 |
U.S. corporate securities | 6,929 |  |  | 465 |  |  | (2 | ) |  | 7,392 |
Foreign securities | 2,188 |  |  | 165 |  |  | (1 | ) |  | 2,352 |
Residential mortgage-backed securities | 542 |  |  | 22 |  |  | — |  |  | 564 |
Commercial mortgage-backed securities | 612 |  |  | 46 |  |  | — |  |  | 658 |
Other asset-backed securities | 1,247 |  |  | 14 |  |  | (4 | ) |  | 1,257 |
Redeemable preferred securities | 32 |  |  | 7 |  |  | — |  |  | 39 |
Total debt securities (1) | $ | 15,588 |  |  | $ | 888 |  |  | $ | (7 | ) |  | $ | 16,469 |
December 31, 2018 |  |  |  |  |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |  |  |  |  |
U.S. government securities | $ | 1,662 |  |  | $ | 26 |  |  | $ | — |  |  | $ | 1,688 |
States, municipalities and political subdivisions | 2,370 |  |  | 30 |  |  | (1 | ) |  | 2,399 |
U.S. corporate securities | 6,444 |  |  | 61 |  |  | (16 | ) |  | 6,489 |
Foreign securities | 2,355 |  |  | 31 |  |  | (3 | ) |  | 2,383 |
Residential mortgage-backed securities | 567 |  |  | 10 |  |  | — |  |  | 577 |
Commercial mortgage-backed securities | 594 |  |  | 11 |  |  | — |  |  | 605 |
Other asset-backed securities | 1,097 |  |  | 3 |  |  | (15 | ) |  | 1,085 |
Redeemable preferred securities | 30 |  |  | — |  |  | (1 | ) |  | 29 |
Total debt securities (1) | $ | 15,119 |  |  | $ | 172 |  |  | $ | (36 | ) |  | $ | 15,255 |
_____________________________________________
(1) | Investment risks associated with the Company’s experience-rated products generally do not impact the Company’s consolidated operating results. At June 30, 2019, debt securities with a fair value of $944 million, gross unrealized capital gains of $70 million and no gross unrealized capital losses and at December 31, 2018, debt securities with a fair value of $916 million, gross unrealized capital gains of $12 million and gross unrealized capital losses of $2 million were included in total debt securities, but support experience-rated products. Changes in net unrealized capital gains (losses) on these securities are not reflected in accumulated other comprehensive income.
The fair value of debt securities at June 30, 2019 is shown below by contractual maturity. Actual maturities may differ from contractual maturities because securities may be restructured, called or prepaid, or the Company intends to sell a security prior to maturity.
In millions | Amortized Cost |  | Fair Value
Due to mature: |  |  |
Less than one year | $ | 1,056 |  |  | $ | 1,060 |
One year through five years | 5,264 |  |  | 5,441 |
After five years through ten years | 3,154 |  |  | 3,353 |
Greater than ten years | 3,713 |  |  | 4,136 |
Residential mortgage-backed securities | 542 |  |  | 564 |
Commercial mortgage-backed securities | 612 |  |  | 658 |
Other asset-backed securities | 1,247 |  |  | 1,257 |
Total | $ | 15,588 |  |  | $ | 16,469 |
Summarized below are the debt securities the Company held at June 30, 2019 and December 31, 2018 that were in an unrealized capital loss position:
In millions, except number of securities | Number of Securities |  | Fair Value |  | Unrealized Losses
June 30, 2019 |  |  |  |  |
Debt securities: |  |  |  |  |
U.S. government securities | 9 |  |  | $ | 28 |  |  | $ | — |
States, municipalities and political subdivisions | 40 |  |  | 60 |  |  | — |
U.S. corporate securities | 156 |  |  | 128 |  |  | 2 |
Foreign securities | 34 |  |  | 38 |  |  | 1 |
Residential mortgage-backed securities | 20 |  |  | 2 |  |  | — |
Other asset-backed securities | 333 |  |  | 344 |  |  | 4 |
Total debt securities | 592 |  |  | $ | 600 |  |  | $ | 7 |
December 31, 2018 |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |
U.S. government securities | 8 |  |  | $ | 26 |  |  | $ | — |
States, municipalities and political subdivisions | 54 |  |  | 86 |  |  | 1 |
U.S. corporate securities | 1,399 |  |  | 1,431 |  |  | 16 |
Foreign securities | 243 |  |  | 314 |  |  | 3 |
Residential mortgage-backed securities | 45 |  |  | 1 |  |  | — |
Other asset-backed securities | 516 |  |  | 528 |  |  | 15 |
Redeemable preferred securities | 14 |  |  | 23 |  |  | 1 |
Total debt securities | 2,279 |  |  | $ | 2,409 |  |  | $ | 36 |
Since Aetna’s investment portfolio was measured at fair value as of the Aetna Acquisition Date, each of the securities in the table above were in an unrealized loss position for less than 12 months. The Company reviewed the securities in the table above and concluded that these are performing assets generating investment income to support the needs of the Company’s business. In performing this review, the Company considered factors such as the quality of the investment security based on research performed by the Company’s internal credit analysts and external rating agencies and the prospects of realizing the carrying value of the security based on the investment’s current prospects for recovery. As of June 30, 2019, the Company did not intend to sell these securities, and did not believe it was more likely than not that it would be required to sell these securities prior to anticipated recovery of their amortized cost basis. The maturity dates for debt securities in an unrealized capital loss position at June 30, 2019 were as follows:
| Supporting experience-rated products |  | Supporting remaining products |  | Total
In millions | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
Due to mature: |  |  |  |  |  |  |  |  |  |  |
Less than one year | $ | — |  |  | $ | — |  |  | $ | 16 |  |  | $ | — |  |  | $ | 16 |  |  | $ | — |
One year through five years | — |  |  | — |  |  | 61 |  |  | 1 |  |  | 61 |  |  | 1 |
After five years through ten years | 3 |  |  | — |  |  | 125 |  |  | 2 |  |  | 128 |  |  | 2 |
Greater than ten years | 3 |  |  | — |  |  | 46 |  |  | — |  |  | 49 |  |  | — |
Residential mortgage-backed securities | — |  |  | — |  |  | 2 |  |  | — |  |  | 2 |  |  | — |
Other asset-backed securities | — |  |  | — |  |  | 344 |  |  | 4 |  |  | 344 |  |  | 4 |
Total | $ | 6 |  |  | $ | — |  |  | $ | 594 |  |  | $ | 7 |  |  | $ | 600 |  |  | $ | 7 |
Mortgage Loans The Company’s mortgage loans are collateralized by commercial real estate. The Company did not have any mortgage loans during the three and six months ended June 30, 2018. During the three and six months ended June 30, 2019, the Company had the following activity in its mortgage loan portfolio:
In millions | Three Months Ended June 30, 2019 |  | Six Months Ended June 30, 2019
New mortgage loans | $ | 37 |  |  | $ | 78 |
Mortgage loans fully repaid | 19 |  |  | 71 |
Mortgage loans foreclosed | — |  |  | — |
The Company assesses mortgage loans on a regular basis for credit impairments, and annually assigns a credit quality indicator to each loan. The Company’s credit quality indicator is internally developed and categorizes its portfolio on a scale from 1 to 7. These indicators are based upon several factors, including current loan to value ratios, property condition, market trends, creditworthiness of the borrower and deal structure. The vast majority of the Company’s mortgage loans fall into categories 2 to 4.
• | Category 1 - Represents loans of superior quality.
• | Categories 2 to 4 - Represent loans where credit risk is minimal to acceptable; however, these loans may display some susceptibility to economic changes.
• | Categories 5 and 6 - Represent loans where credit risk is not substantial, but these loans warrant management’s close attention.
• | Category 7 - Represents loans where collections are potentially at risk; if necessary, an impairment is recorded.
Based upon the Company’s assessments at June 30, 2019 and December 31, 2018, the Company’s mortgage loans were given the following credit quality indicators:
In millions, except credit ratings indicator | June 30, 2019 |  | December 31, 2018
1 | $ | 45 |  |  | $ | 42 |
2 to 4 | 1,288 |  |  | 1,301 |
5 and 6 | 12 |  |  | 18 |
7 | — |  |  | — |
Total | $ | 1,345 |  |  | $ | 1,361 |
Net Investment Income Sources of net investment income for the three and six months ended June 30, 2019 and 2018 were as follows:
| Three Months Ended June 30, |  | Six Months Ended June 30,
In millions | 2019 |  | 2018 |  | 2019 |  | 2018
Debt securities | $ | 146 |  |  | $ | 1 |  |  | $ | 292 |  |  | $ | 3 |
Mortgage loans | 18 |  |  | — |  |  | 35 |  |  | — |
Other investments | 67 |  |  | 213 |  |  | 103 |  |  | 261 |
Gross investment income | 231 |  |  | 214 |  |  | 430 |  |  | 264 |
Investment expenses | (9 | ) |  | — |  |  | (18 | ) |  | — |
Net investment income (excluding net realized capital gains or losses) | 222 |  |  | 214 |  |  | 412 |  |  | 264 |
Net realized capital gains (1) | 71 |  |  | — |  |  | 130 |  |  | — |
Net investment income (2) | $ | 293 |  |  | $ | 214 |  |  | $ | 542 |  |  | $ | 264 |
_____________________________________________
(1) | Other-than-temporary impairment (“OTTI”) losses on debt securities recognized in the unaudited condensed consolidated statements of operations were $6 million and $13 million, respectively, for the three and six months ended June 30, 2019. There were no OTTI losses on debt securities for the three and six months ended June 30, 2018.
(2) | Net investment income includes $12 million and $23 million for the three and six months ended June 30, 2019, respectively, related to investments supporting experience-rated products. The Company had no investments supporting experience-rated products during the three and six months ended June 30, 2018.
The portion of unrealized capital gains and losses recognized during the three and six months ended June 30, 2019 related to investments in equity securities held as of the reporting date was not material. The Company did not have any material proceeds from the sale of available for sale debt securities or related gross realized capital gains or losses for the three and six months ended June 30, 2018. Excluding amounts related to experience-rated products, proceeds from the sale of available for sale debt securities and the related gross realized capital gains and losses for the three and six months ended June 30, 2019 were as follows:
In millions | Three Months Ended June 30, 2019 |  | Six Months Ended June 30, 2019
Proceeds from sales | $ | 1,273 |  |  | $ | 2,762 |
Gross realized capital gains | 37 |  |  | 72 |
Gross realized capital losses | 2 |  |  | 4 |

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