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FAIR VALUE (Tables)
9 Months Ended
Sep. 30, 2024
Fair Value Disclosures [Abstract]  
Schedule of Financial Assets Measured at Fair Value on Recurring Basis
The following table summarizes our fair value measurements at September 30, 2024 and December 31, 2023, respectively, for financial assets measured at fair value on a recurring basis:
 Fair Value Measurements Using
 Fair
Value
Quoted Prices
in Active
Markets
(Level 1)
Other
Observable
Inputs
(Level 2)
Unobservable
Inputs
(Level 3)
 (in millions)
September 30, 2024
Cash equivalents$4,941 $4,941 $— $— 
Debt securities:
U.S. Treasury and other U.S. government
    corporations and agencies:
U.S. Treasury and agency obligations3,183 — 3,183 — 
Mortgage-backed securities4,183 — 4,183 — 
Tax-exempt municipal securities584 — 584 — 
Mortgage-backed securities:
Residential502 — 500 
Commercial1,216 — 1,216 — 
Asset-backed securities1,524 — 1,479 45 
Corporate debt securities8,241 — 7,997 244 
Total debt securities19,433 — 19,142 291 
Securities lending invested collateral361 361 — — 
Total invested assets$24,735 $5,302 $19,142 $291 
December 31, 2023
Cash equivalents$4,582 $4,582 $— $— 
Debt securities:
U.S. Treasury and other U.S. government
    corporations and agencies:
U.S. Treasury and agency obligations2,667 — 2,667 — 
Mortgage-backed securities3,522 — 3,522 — 
Tax-exempt municipal securities858 — 858 — 
Mortgage-backed securities:
Residential400 — 396 
Commercial1,345 — 1,345 — 
Asset-backed securities1,771 — 1,733 38 
Corporate debt securities6,445 — 6,269 176 
Total debt securities$17,008 $— $16,790 $218 
Schedule of Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation During the nine months ended
September 30, 2024 and 2023, the changes in the fair value of the assets measured using significant unobservable inputs (Level 3) were comprised of the following:    
Private Placements
For the nine months ended September 30, 2024For the nine months ended September 30, 2023
(in millions)
Beginning balance at January 1$218 $101 
Total gains or losses:
Realized in earnings— — 
Unrealized in other comprehensive income(1)
Purchases72 13 
Maturities— (4)
Sales— — 
Settlements(5)— 
Transfer out— (4)
Balance at September 30$291 $105 
Schedule of Notional Amounts of Outstanding Derivative Positions The following table summarizes the notional amounts at September 30, 2024 and December 31, 2023, respectively, for our senior notes under the swap agreements:
September 30, 2024December 31, 2023
(in millions)
$750 million, 5.875% due March 1, 2033
$650 $650 
$850 million, 5.950% due March 15, 2034
800 400 
$500 million, 3.950% due August 15, 2049
450 450 
$750 million, 5.500% due March 15, 2053
700 300 
$400 million, 4.625% due December 1, 2042
400 — 
$750 million, 4.950% due October 1, 2044
400 — 
$1,000 million, 5.750% due April 15, 2054
400 — 
Schedule of Assumptions Used For Inputs In Fair Value Measurement The table below presents the assumptions used for each reporting period.
September 30, 2024December 31, 2023
Annualized volatility
16.5% - 18.3%
16.1% - 17.8%
Credit spread
0.8% - 1.4%
0.9% - 1.1%
Revenue exit multiple
1.5x - 2.5x
1.5x - 2.5x
Weighted average cost of capital
11.0% - 14.0%
11.0% - 12.5%
Long term growth rate3.0 %3.0 %