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Investments - Consolidated Investments (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Available-for-sale securities |  |
Amortized Cost | $ 49,229 | $ 45,606
Allowance for Expected Credit Losses | (73) | (42)
Gross Unrealized Gains | 412 | 457
Gross Unrealized Losses | (3,822) | (3,648)
Fair Value/Carrying Value | 45,746 | 42,373
Asset-backed securities |  |
Available-for-sale securities |  |
Amortized Cost | 15,689 | 14,631
Allowance for Expected Credit Losses | (11) | (11)
Gross Unrealized Gains | 240 | 191
Gross Unrealized Losses | (359) | (469)
Fair Value/Carrying Value | 15,559 | 14,342
Commercial mortgage-backed securities |  |
Available-for-sale securities |  |
Amortized Cost | 5,217 | 4,797
Allowance for Expected Credit Losses | (46) | (22)
Gross Unrealized Gains | 34 | 23
Gross Unrealized Losses | (216) | (323)
Fair Value/Carrying Value | 4,989 | 4,475
Corporates |  |
Available-for-sale securities |  |
Amortized Cost | 22,383 | 20,133
Allowance for Expected Credit Losses | (15) | (6)
Gross Unrealized Gains | 96 | 186
Gross Unrealized Losses | (2,780) | (2,417)
Fair Value/Carrying Value | 19,684 | 17,896
Hybrids |  |
Available-for-sale securities |  |
Amortized Cost | 678 | 668
Allowance for Expected Credit Losses | 0 | 0
Gross Unrealized Gains | 4 | 3
Gross Unrealized Losses | (43) | (53)
Fair Value/Carrying Value | 639 | 618
Municipals |  |
Available-for-sale securities |  |
Amortized Cost | 1,706 | 1,826
Allowance for Expected Credit Losses | 0 | 0
Gross Unrealized Gains | 7 | 14
Gross Unrealized Losses | (249) | (229)
Fair Value/Carrying Value | 1,464 | 1,611
Residential mortgage-backed securities |  |
Available-for-sale securities |  |
Amortized Cost | 2,541 | 2,507
Allowance for Expected Credit Losses | (1) | (3)
Gross Unrealized Gains | 28 | 29
Gross Unrealized Losses | (114) | (104)
Fair Value/Carrying Value | 2,454 | 2,429
U.S. Government |  |
Available-for-sale securities |  |
Amortized Cost | 643 | 679
Allowance for Expected Credit Losses | 0 | 0
Gross Unrealized Gains | 3 | 8
Gross Unrealized Losses | (11) | (9)
Fair Value/Carrying Value | 635 | 678
Foreign Governments |  |
Available-for-sale securities |  |
Amortized Cost | 372 | 365
Allowance for Expected Credit Losses | 0 | 0
Gross Unrealized Gains | 0 | 3
Gross Unrealized Losses | (50) | (44)
Fair Value/Carrying Value | $ 322 | $ 324

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