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Derivative Instruments - Schedule of Offsetting Assets and Liabilities (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financial Assets |  |
Gross amount of recognized assets | $ 16,223 | $ 11,867
Gross amounts offset | (6,856) | (4,453)
Net amount of assets | 9,367 | 7,414
Cash collateral | (6,903) | (5,229)
Non-cash collateral | (1,491) | (1,245)
Net amount | 973 | 940
Financial Liabilities |  |
Gross amount of recognized liabilities | 11,524 | 10,596
Gross amounts offset | (87) | (612)
Net amount of liabilities | 11,437 | 9,984
Cash collateral | (114) | (188)
Non-cash collateral | (72) | (167)
Net amount | 11,251 | 9,629
Excess non-cash collateral received | 1,400 | 1,300
Excess non-cash collateral pledged | 89 | 82
Derivative Instruments |  |
Financial Assets |  |
Gross amount of recognized assets | 15,250 | 10,927
Gross amounts offset | (6,856) | (4,453)
Net amount of assets | 8,394 | 6,474
Cash collateral | (6,903) | (5,229)
Non-cash collateral | (1,491) | (1,245)
Net amount | 0 | 0
Financial Liabilities |  |
Gross amount of recognized liabilities | 273 | 967
Gross amounts offset | (87) | (612)
Net amount of liabilities | 186 | 355
Cash collateral | (114) | (188)
Non-cash collateral | (72) | (167)
Net amount | 0 | 0
Embedded Derivative Instruments |  |
Financial Assets |  |
Gross amount of recognized assets | 973 | 940
Gross amounts offset | 0 | 0
Net amount of assets | 973 | 940
Cash collateral | 0 | 0
Non-cash collateral | 0 | 0
Net amount | 973 | 940
Financial Liabilities |  |
Gross amount of recognized liabilities | 11,251 | 9,629
Gross amounts offset | 0 | 0
Net amount of liabilities | 11,251 | 9,629
Cash collateral | 0 | 0
Non-cash collateral | 0 | 0
Net amount | $ 11,251 | $ 9,629

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