Schedule of Financial Assets Measured at Fair Value on Recurring Basis |
The following table summarizes our fair value measurements at March 31, 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) | March 31, 2024 | | | | | | | | Cash equivalents | $ | 5,594 | | | $ | 5,594 | | | $ | — | | | $ | — | | Debt securities: | | | | | | | | U.S. Treasury and other U.S. government corporations and agencies: | | | | | | | | U.S. Treasury and agency obligations | 2,844 | | | — | | | 2,844 | | | — | | Mortgage-backed securities | 3,439 | | | — | | | 3,439 | | | — | | Tax-exempt municipal securities | 826 | | | — | | | 826 | | | — | | Mortgage-backed securities: | | | | | | | | Residential | 394 | | | — | | | 391 | | | 3 | | Commercial | 1,308 | | | — | | | 1,308 | | | — | | Asset-backed securities | 1,517 | | | — | | | 1,479 | | | 38 | | Corporate debt securities | 6,749 | | | — | | | 6,564 | | | 185 | | Total debt securities | 17,077 | | | — | | | 16,851 | | | 226 | | | | | | | | | | Total invested assets | $ | 22,671 | | | $ | 5,594 | | | $ | 16,851 | | | $ | 226 | | | | | | | | | | 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 obligations | 2,667 | | | — | | | 2,667 | | | — | | Mortgage-backed securities | 3,522 | | | — | | | 3,522 | | | — | | Tax-exempt municipal securities | 858 | | | — | | | 858 | | | — | | Mortgage-backed securities: | | | | | | | | Residential | 400 | | | — | | | 396 | | | 4 | | Commercial | 1,345 | | | — | | | 1,345 | | | — | | Asset-backed securities | 1,771 | | | — | | | 1,733 | | | 38 | | Corporate debt securities | 6,445 | | | — | | | 6,269 | | | 176 | | Total debt securities | 17,008 | | | — | | | 16,790 | | | 218 | | | | | | | | | | Total invested assets | $ | 21,590 | | | $ | 4,582 | | | $ | 16,790 | | | $ | 218 | |
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Schedule of Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation |
During the three months ended March 31, 2024 and 2023, the changes in the fair value of the assets measured using significant unobservable inputs (Level 3) were comprised of the following: | | | | | | | | | | | | | | For the three months ended March 31, 2024 | For the three months ended March 31, 2023 | | | | | | Private Placements | | | | | | (in millions) | Beginning balance at January 1 | $ | 218 | | $ | 101 | | | | | | Total gains or losses: | | | | | | | Realized in earnings | — | | — | | | | | | Unrealized in other comprehensive income | (2) | | 1 | | | | | | Purchases | 11 | | 1 | | | | | | Sales | — | | — | | | | | | Settlements | (1) | | — | | | | | | Transfer out | — | | (4) | | | | | | Balance at March 31 | $ | 226 | | $ | 99 | | | | | |
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Schedule of Notional Amounts of Outstanding Derivative Positions |
The following table summarizes the notional amounts at March 31, 2024 and December 31, 2023, respectively, for our senior notes under the swap agreements: | | | | | | | | | | March 31, 2024 | December 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 | | $1,000 million, 5.750% due April 15, 2054 | 400 | | — | |
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