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Additional Information about Derivative Assets and Liabilities Subject to Enforceable Master Netting Arrangement (Detail) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Derivative [Line Items] |  |  |
Gross amounts recognized, derivatives assets |  | $ 80 | $ 131
Gross amounts recognized, derivatives liabilities |  | 846 | 681
Subject to enforceable master netting arrangement |  |  |
Derivative [Line Items] |  |  |
Gross amounts recognized, net derivatives |  | (590) | (370)
Gross amounts offset in the balance sheet, net derivatives |  | 0 | 0
Net amounts presented in the balance sheet, net derivatives |  | (590) | (370)
Gross amounts not offset in the balance sheet, financial instruments, net derivatives | [1] | 0 | 0
Collateral received |  | (17) | (19)
Collateral pledged |  | 1,288 | 1,100
Over collateralization, net derivatives |  | (654) | (658)
Net amount |  | 27 | 53
Subject to enforceable master netting arrangement | Derivative assets |  |  |
Derivative [Line Items] |  |  |
Gross amounts recognized, derivatives assets | [2] | 80 | 131
Gross amounts offset in the balance sheet, derivatives assets | [2] | 0 | 0
Net amounts presented in the balance sheet, derivatives assets | [2] | 80 | 131
Gross amounts not offset in the balance sheet, financial instruments, derivatives assets | [1],[2] | (38) | (59)
Collateral received | [2] | (17) | (19)
Collateral pledged | [2] | 0 | 0
Over collateralization, derivatives assets | [2] | 2 | 0
Net amount, derivatives assets | [2] | 27 | 53
Subject to enforceable master netting arrangement | Derivative liabilities |  |  |
Derivative [Line Items] |  |  |
Gross amounts recognized, derivatives liabilities | [2] | 670 | 501
Gross amounts offset in the balance sheet, derivatives liabilities | [2] | 0 | 0
Net amounts presented in the balance sheet, derivatives liabilities | [2] | 670 | 501
Gross amounts not offset in the balance sheet, financial instruments, derivative liabilities | [1],[2] | (38) | (59)
Collateral received | [2] | 0 | 0
Collateral pledged | [2] | (1,288) | (1,100)
Over collateralization, derivatives liabilities | [2] | 656 | 658
Net amount, derivatives liabilities | [2] | $ 0 | $ 0
[1] | Amounts represent derivative assets and/or liabilities that are presented gross within the balance sheet but are held with the same counterparty where we have a master netting arrangement. This adjustment results in presenting the net asset and net liability position for each counterparty.
[2] | Does not include amounts related to embedded derivatives as of June 30, 2024 and December 31, 2023.

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