Annual report pursuant to Section 13 and 15(d)

Short-term and Long-term Investments, Restricted Deposits

v3.19.3.a.u2
Short-term and Long-term Investments, Restricted Deposits
 12 Months Ended
Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]  
Short-term and Long-term Investments, Restricted Deposits Short-term and Long-term Investments, Restricted Deposits

Short-term and long-term investments and restricted deposits by investment type consist of the following ($ in millions):
 
December 31, 2019
 
December 31, 2018
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized Losses
 
Fair
Value
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized Losses
 
Fair
Value
U.S. Treasury securities and obligations of U.S. government corporations and agencies
$
211

 
$
1

 
$
—

 
$
212

 
$
362

 
$
1

 
$
(2
)
 
$
361

Corporate securities
3,629

 
108

 
(4
)
 
3,733

 
3,190

 
8

 
(52
)
 
3,146

Restricted certificates of deposit
482

 
—

 
—

 
482

 
433

 
—

 
—

 
433

Restricted cash equivalents
8

 
—

 
—

 
8

 
8

 
—

 
—

 
8

Municipal securities
2,320

 
69

 
(1
)
 
2,388

 
2,196

 
9

 
(18
)
 
2,187

Asset-backed securities
741

 
5

 
(2
)
 
744

 
686

 
1

 
(4
)
 
683

Residential mortgage-backed securities
464

 
8

 
(1
)
 
471

 
452

 
1

 
(9
)
 
444

Commercial mortgage- backed securities
380

 
9

 
(1
)
 
388

 
366

 
1

 
(6
)
 
361

Private equity investments
664

 
—

 
—

 
664

 
387

 
—

 
—

 
387

Life insurance contracts
148

 
—

 
—

 
148

 
128

 
—

 
—

 
128

Total
$
9,047

 
$
200

 
$
(9
)
 
$
9,238

 
$
8,208

 
$
21

 
$
(91
)
 
$
8,138



The Company's investments are debt securities classified as available-for-sale with the exception of life insurance contracts and certain private equity investments. The Company's investment policies are designed to provide liquidity, preserve capital and maximize total return on invested assets with the focus on high credit quality securities. The Company limits the size of investment in any single issuer other than U.S. treasury securities and obligations of U.S. government corporations and agencies. As of December 31, 2019, 97% of the Company's investments in rated securities carry an investment grade rating by nationally recognized statistical rating organizations. At December 31, 2019, the Company held certificates of deposit, life insurance contracts and private equity investments which did not carry a credit rating.

The Company's residential mortgage-backed securities are primarily issued by the Federal National Mortgage Association, Government National Mortgage Association or Federal Home Loan Mortgage Corporation, which carry implicit or explicit guarantees of the U.S. government. The Company's commercial mortgage-backed securities are primarily senior tranches with a weighted average rating of AA+ and a weighted average duration of 4 years at December 31, 2019.

The fair value of available-for-sale debt securities with gross unrealized losses by investment type and length of time that individual securities have been in a continuous unrealized loss position were as follows ($ in millions):
 
December 31, 2019
 
December 31, 2018
 
Less Than 12 Months
 
12 Months or More
 
Less Than 12 Months
 
12 Months or More
 
Unrealized Losses
 
Fair
Value
 
Unrealized Losses
 
Fair
Value
 
Unrealized Losses
 
Fair
Value
 
Unrealized Losses
 
Fair
Value
U.S. Treasury securities and obligations of U.S. government corporations and agencies
$
—

 
$
11

 
$
—

 
$
31

 
$
—

 
$
59

 
$
(2
)
 
$
202

Corporate securities
(2
)
 
192

 
(2
)
 
48

 
(27
)
 
1,389

 
(25
)
 
871

Municipal securities
(1
)
 
185

 
—

 
11

 
(4
)
 
591

 
(14
)
 
806

Asset-backed securities
(1
)
 
153

 
(1
)
 
151

 
(2
)
 
318

 
(2
)
 
168

Residential mortgage- backed securities
—

 
44

 
(1
)
 
81

 
(1
)
 
61

 
(8
)
 
233

Commercial mortgage- backed securities
(1
)
 
118

 
—

 
21

 
(2
)
 
137

 
(4
)
 
140

Total
$
(5
)
 
$
703

 
$
(4
)
 
$
343

 
$
(36
)
 
$
2,555

 
$
(55
)
 
$
2,420



As of December 31, 2019, the gross unrealized losses were generated from 682 positions out of a total of 4,529 positions. The change in fair value of fixed income securities is primarily a result of movement in interest rates subsequent to the purchase of the security.

For each security in an unrealized loss position, the Company assesses whether it intends to sell the security or if it is more likely than not the Company will be required to sell the security before recovery of the amortized cost basis for reasons such as liquidity, contractual or regulatory purposes. If the security meets this criterion, the decline in fair value is other-than-temporary and is recorded in earnings. The Company does not intend to sell these securities prior to maturity and it is not likely that the Company will be required to sell these securities prior to maturity; therefore, there is no indication of other-than-temporary impairment for these securities.

The contractual maturities of short-term and long-term investments and restricted deposits are as follows ($ in millions):
 
December 31, 2019
 
December 31, 2018
 
Investments
 
Restricted Deposits
 
Investments
 
Restricted Deposits
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
One year or less
$
750

 
$
752

 
$
550

 
$
550

 
$
647

 
$
646

 
$
205

 
$
205

One year through five years
3,034

 
3,106

 
106

 
108

 
3,026

 
2,998

 
351

 
350

Five years through ten years
2,974

 
3,069

 
—

 
—

 
2,387

 
2,362

 
—

 
—

Greater than ten years
48

 
50

 
—

 
—

 
88

 
89

 
—

 
—

Asset-backed securities
1,585

 
1,603

 
—

 
—

 
1,504

 
1,488

 
—

 
—

Total
$
8,391

 
$
8,580

 
$
656

 
$
658

 
$
7,652

 
$
7,583

 
$
556

 
$
555


 
Actual maturities may differ from contractual maturities due to call or prepayment options. Private equity investments and life insurance contracts are included in the five years through ten years category. The Company has an option to redeem at amortized cost substantially all of the securities included in the greater than ten years category listed above.

The Company continuously monitors investments for other-than-temporary impairment. Certain investments have experienced a decline in fair value due to changes in credit quality, market interest rates and/or general economic conditions. The Company recognizes an impairment loss when evidence demonstrates that it is other-than-temporarily impaired. Evidence of a loss in value that is other-than-temporary may include the absence of an ability to recover the carrying amount of the investment or the inability of the investee to sustain a level of earnings that would justify the carrying amount of the investment.