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	Dec. 31, 2025	Dec. 31, 2024
Derivatives, Fair Value [Line Items]
Notional Amount	$ 67,528	$ 46,744
Derivative Asset, Fair Value	179	240
Derivative Liability, Fair Value	$ 972	$ 933
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other	Other
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities
Cash flow hedges
Derivatives, Fair Value [Line Items]
Notional Amount	$ 18	$ 18
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value	5	6
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	6
Net investment hedge
Derivatives, Fair Value [Line Items]
Notional Amount	1,828	1,809
Derivative Asset, Fair Value	120	185
Derivative Liability, Fair Value	0	0
Net investment hedge | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	1,828	1,809
Derivative Asset, Fair Value	120	185
Derivative Liability, Fair Value	0	0
Non-qualifying strategies
Derivatives, Fair Value [Line Items]
Notional Amount	65,682	44,917
Derivative Asset, Fair Value	59	55
Derivative Liability, Fair Value	967	927
Non-qualifying strategies | Foreign currency swaps | Variable Interest Entity, Consolidated
Derivatives, Fair Value [Line Items]
Notional Amount	2,960	3,042
Derivative Asset, Fair Value	45	53
Derivative Liability, Fair Value	760	598
Non-qualifying strategies | Foreign currency swaps | Consolidated Entity Excluding Variable Interest Entities (VIE)
Derivatives, Fair Value [Line Items]
Notional Amount	49	450
Derivative Asset, Fair Value	0	2
Derivative Liability, Fair Value	0	0
Non-qualifying strategies | Foreign currency forwards
Derivatives, Fair Value [Line Items]
Notional Amount	945	0
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value	18	0
Non-qualifying strategies | Foreign currency options
Derivatives, Fair Value [Line Items]
Notional Amount	25,000	24,195
Derivative Asset, Fair Value	0	0
Derivative Liability, Fair Value	0	0
Non-qualifying strategies | Interest rate swaps
Derivatives, Fair Value [Line Items]
Notional Amount	36,728	17,230
Derivative Asset, Fair Value	14	0
Derivative Liability, Fair Value	$ 189	$ 329