DERIVATIVE INSTRUMENTS - Summary of Balance Sheet Classification of Derivative Fair Value Amounts, as well as Gross Asset and Liability Fair Value Amounts (Detail) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Derivatives, Fair Value [Line Items]
Notional Amount	$ 32,464	$ 67,528
Derivative Asset, Fair Value	184	179
Derivative Liability, Fair Value	$ 890	$ 972
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other	Other
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other	Other
Cash flow hedges
Derivatives, Fair Value [Line Items]
Notional Amount	$ 18	$ 18
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value	5	5
Cash flow hedges \| Foreign currency swaps \| Variable Interest Entity, Consolidated
Derivatives, Fair Value [Line Items]
Notional Amount	18	18
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value	5	5
Net investment hedge
Derivatives, Fair Value [Line Items]
Notional Amount	1,804	1,828
Derivative Asset, Fair Value	70	120
Derivative Liability, Fair Value	8	0
Net investment hedge \| Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	1,804	1,828
Derivative Asset, Fair Value	70	120
Derivative Liability, Fair Value	8	0
Non-qualifying strategies
Derivatives, Fair Value [Line Items]
Notional Amount	30,642	65,682
Derivative Asset, Fair Value	114	59
Derivative Liability, Fair Value	877	967
Non-qualifying strategies \| Foreign currency swaps \| Variable Interest Entity, Consolidated
Derivatives, Fair Value [Line Items]
Notional Amount	3,004	2,960
Derivative Asset, Fair Value	36	45
Derivative Liability, Fair Value	738	760
Non-qualifying strategies \| Foreign currency swaps \| Consolidated Entity Excluding Variable Interest Entities (VIE)
Derivatives, Fair Value [Line Items]
Notional Amount	111	49
Derivative Asset, Fair Value	1	0
Derivative Liability, Fair Value	0	0
Non-qualifying strategies \| Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	1,742	945
Derivative Asset, Fair Value	23	0
Derivative Liability, Fair Value	2	18
Non-qualifying strategies \| Foreign currency options
Derivatives, Fair Value [Line Items]
Notional Amount	2,985	25,000
Derivative Asset, Fair Value	22	0
Derivative Liability, Fair Value	30	0
Non-qualifying strategies \| Interest rate swaps
Derivatives, Fair Value [Line Items]
Notional Amount	22,800	36,728
Derivative Asset, Fair Value	32	14
Derivative Liability, Fair Value	$ 107	$ 189

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and elected not to be offset.

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