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INVESTMENTS - Net Unrealized Gain (Losses) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Balance, beginning of period | $ 3,385 | $ 5,260 | $ 4,388 | $ 3,141
Net unrealized investment gains (losses) | 2,321 | (1,828) | 1,357 | (857)
Balance, end of period | 4,975 | 3,281 | 4,975 | 3,281
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Unrealized Investment Gains (Losses), All Other | Net Unrealized Gains (Losses) on Investments |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Balance, beginning of period | (8,214) | (8,641) | (6,999) | (9,606)
Net investment gains (losses) arising during the period | 2,759 | (2,575) | 1,521 | (1,730)
Included in net income (loss) | 28 | 348 | 54 | 474
Excluded from net income (loss) | 0 | 0 |  |
Other | 0 | 0 | 0 | 0
Impact of net unrealized investment gains (losses) | 0 | 0 | 0 | 0
Balance, end of period | (5,432) | (10,867) | (5,432) | (10,867)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Unrealized Investment Gains (Losses), All Other | Policyholders’ Liabilities |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Balance, beginning of period | 67 | 36 | 50 | 41
Net investment gains (losses) arising during the period | 0 | 0 | 0 | 0
Included in net income (loss) | 0 | 0 | 0 | 0
Excluded from net income (loss) | 0 | 0 |  |
Other | 0 | 0 | 0 | 0
Impact of net unrealized investment gains (losses) | (17) | 38 | 0 | 33
Balance, end of period | 50 | 74 | 50 | 74
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Unrealized Investment Gains (Losses), All Other | Deferred Income Tax Asset (Liability) (1) |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Balance, beginning of period | 471 | 441 | 226 | 440
Net investment gains (losses) arising during the period | 0 | 0 | 0 | 0
Included in net income (loss) | 0 | 0 | 0 | 0
Excluded from net income (loss) | 0 | 0 |  |
Other | 120 | (68) | 113 | 135
Impact of net unrealized investment gains (losses) | (582) | 460 | (331) | 257
Balance, end of period | 10 | 833 | 10 | 833
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Unrealized Investment Gains (Losses), All Other | AOCI Gain (Loss) Related to Net Unrealized Investment Gains (Losses) (1) |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Balance, beginning of period | (7,676) | (8,164) | (6,723) | (9,125)
Net investment gains (losses) arising during the period | 2,759 | (2,575) | 1,521 | (1,730)
Included in net income (loss) | 28 | 348 | 54 | 474
Excluded from net income (loss) | 0 | 0 |  |
Other | 120 | (68) | 113 | 135
Impact of net unrealized investment gains (losses) | (599) | 498 | (331) | 290
Balance, end of period | (5,372) | (9,960) | (5,372) | (9,960)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Net unrealized investment gains (losses) excluding credit losses | Net Unrealized Gains (Losses) on Investments |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Net unrealized investment gains (losses) | (5,427) | (10,868) | (5,424) | (10,862)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Net unrealized investment gains (losses) excluding credit losses | Policyholders’ Liabilities |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Net unrealized investment gains (losses) | 50 | 74 | 50 | 74
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Net unrealized investment gains (losses) excluding credit losses | Deferred Income Tax Asset (Liability) (1) |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Net unrealized investment gains (losses) | 9 | 833 | 8 | 832
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Net unrealized investment gains (losses) excluding credit losses | AOCI Gain (Loss) Related to Net Unrealized Investment Gains (Losses) (1) |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Net unrealized investment gains (losses) | (5,368) | (9,961) | (5,366) | (9,956)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Net unrealized investment gains (losses) with credit losses | Net Unrealized Gains (Losses) on Investments |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Net unrealized investment gains (losses) | (5) | 1 | (8) | (5)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Net unrealized investment gains (losses) with credit losses | Policyholders’ Liabilities |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Net unrealized investment gains (losses) | 0 | 0 | 0 | 0
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Net unrealized investment gains (losses) with credit losses | Deferred Income Tax Asset (Liability) (1) |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Net unrealized investment gains (losses) | 1 | 0 | 2 | 1
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent | Net unrealized investment gains (losses) with credit losses | AOCI Gain (Loss) Related to Net Unrealized Investment Gains (Losses) (1) |  |  |  |
Debt Securities, Available-For-Sale, Net Unrealized Investments [Roll Forward] |  |  |  |
Net unrealized investment gains (losses) | $ (4) | $ 1 | $ (6) | $ (4)

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