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	Mar. 31, 2026	Dec. 31, 2025
Derivatives, Fair Value [Line Items]
Notional Amount	$ 66,239	$ 67,528
Derivative Asset, Fair Value	211	179
Derivative Liability, Fair Value	$ 1,016	$ 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	6	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	6	5
Net investment hedge
Derivatives, Fair Value [Line Items]
Notional Amount	2,074	1,828
Derivative Asset, Fair Value	143	120
Derivative Liability, Fair Value	0	0
Net investment hedge \| Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	2,074	1,828
Derivative Asset, Fair Value	143	120
Derivative Liability, Fair Value	0	0
Non-qualifying strategies
Derivatives, Fair Value [Line Items]
Notional Amount	64,147	65,682
Derivative Asset, Fair Value	68	59
Derivative Liability, Fair Value	1,010	967
Non-qualifying strategies \| Foreign currency swaps \| Variable Interest Entity, Consolidated
Derivatives, Fair Value [Line Items]
Notional Amount	2,960	2,960
Derivative Asset, Fair Value	43	45
Derivative Liability, Fair Value	800	760
Non-qualifying strategies \| Foreign currency swaps \| Consolidated Entity Excluding Variable Interest Entities (VIE)
Derivatives, Fair Value [Line Items]
Notional Amount	49	49
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value	0	0
Non-qualifying strategies \| Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	1,600	945
Derivative Asset, Fair Value	2	0
Derivative Liability, Fair Value	23	18
Non-qualifying strategies \| Foreign currency options
Derivatives, Fair Value [Line Items]
Notional Amount	26,000	25,000
Derivative Asset, Fair Value	23	0
Derivative Liability, Fair Value	40	0
Non-qualifying strategies \| Interest rate swaps
Derivatives, Fair Value [Line Items]
Notional Amount	32,850	36,728
Derivative Asset, Fair Value	0	14
Derivative Liability, Fair Value	142	189
Non-qualifying strategies \| Forward bond purchase commitment
Derivatives, Fair Value [Line Items]
Notional Amount	688	0
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value	$ 5	$ 0

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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