XML 37 R25.htm IDEA: XBRL DOCUMENT v3.24.2
Investments (Tables)
6 Months Ended
Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]  
Schedule of Investments The following tables summarize our current investments as of the dates indicated:
 June 30, 2024
Amortized CostGross UnrealizedEstimated Fair Value
 GainsLosses
 (In millions)
Corporate debt securities$2,852 $$57 $2,801 
Mortgage-backed securities967 45 924 
Asset-backed securities392 10 383 
Municipal securities193 — 186 
U.S. Treasury notes
— — 
Other46 — 44 
Total$4,459 $$121 $4,347 
 December 31, 2023
 Amortized CostGross UnrealizedEstimated Fair Value
 GainsLosses
 (In millions)
Corporate debt securities$2,781 $16 $65 $2,732 
Mortgage-backed securities951 44 911 
Asset-backed securities376 12 365 
Municipal securities172 — 166 
U.S. Treasury notes
40 — — 40 
Other47 — 45 
Total$4,367 $21 $129 $4,259 
Schedule of Contractual Maturities of Investments
The contractual maturities of our current investments as of June 30, 2024 are summarized below:
Amortized CostEstimated
Fair Value
 (In millions)
Due in one year or less$666 $657 
Due after one year through five years2,273 2,225 
Due after five years through ten years452 446 
Due after ten years1,068 1,019 
Total$4,459 $4,347 
Schedule of Available-for-Sale Investments
The following table segregates those available-for-sale investments that have been in a continuous loss position for less than 12 months, and those that have been in a continuous loss position for 12 months or more as of June 30, 2024:
In a Continuous Loss Position
for Less than 12 Months
In a Continuous Loss Position
for 12 Months or More
Estimated
Fair
Value
Unrealized
Losses
Total Number of PositionsEstimated
Fair
Value
Unrealized
Losses
Total Number of Positions
 (Dollars in millions)
Corporate debt securities$648 $421 $1,524 $52 725 
Mortgage-backed securities
144 117 516 43 314 
Asset-backed securities— — — 220 10 104 
Municipal securities— — — 113 108 
Other
— — — 22 21 
Total$792 $538 $2,395 $114 1,272 
The following table segregates those available-for-sale investments that have been in a continuous loss position for less than 12 months, and those that have been in a continuous loss position for 12 months or more as of December 31, 2023:
In a Continuous Loss Position
for Less than 12 Months
In a Continuous Loss Position
for 12 Months or More
Estimated
Fair
Value
Unrealized
Losses
Total Number of PositionsEstimated
Fair
Value
Unrealized
Losses
Total Number of Positions
 (Dollars in millions)
Corporate debt securities$263 $160 $1,553 $64 754 
Mortgage-backed securities
123 98 549 42 283 
Asset-backed securities— — — 195 12 91 
Municipal securities— — — 117 116 
Other
— — — 17 17 
Total$386 $258 $2,431 $126 1,261