DERIVATIVE INSTRUMENTS - Derivatives and Hedging Instruments Gain (Loss) Summary (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2025		Sep. 30, 2024		Sep. 30, 2025		Sep. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in other comprehensive income on derivative	$ 1		$ 2		$ 4		$ 3
Unrealized foreign currency translation gains (losses) during period	(110)		788		421		(52)
Derivative and non-derivative hedging instruments, gain (loss) recognized in other comprehensive income, before tax	206		(745)		(395)		56
Net investment income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	$ (1)		$ (1)		$ (1)		$ (1)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net investment income		Net investment income		Net investment income		Net investment income
Net investment gains (losses)
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	$ (123)		$ 436		$ (145)		$ (54)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Net investment gains (losses)		Net investment gains (losses)		Net investment gains (losses)		Net investment gains (losses)
Reclassification Out Of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments, cash flow hedges, gains (losses) reclassified from accumulated other comprehensive income into earnings	$ (1)		$ (1)		$ (3)		$ (3)
Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in other comprehensive income on derivative	1		2		4		3
Cash flow hedges | Net investment income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	(1)		(1)		(1)		(1)
Cash flow hedges | Net investment gains (losses)
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	(1)	[1]	(1)	[1]	(3)	[2]	(3)	[2]
Cash flow hedges | Foreign currency swaps | Variable Interest Entity
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in other comprehensive income on derivative	1		2		4		3
Cash flow hedges | Foreign currency swaps | Variable Interest Entity | Net investment income
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	(1)		(1)		(1)		(1)
Cash flow hedges | Foreign currency swaps | Variable Interest Entity | Net investment gains (losses)
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	(1)		(1)		(3)		(3)
Net investment hedge
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	23		43		85		119
Unrealized foreign currency translation gains (losses) during period	205		(747)		(399)		53
Net investment hedge | Non-derivative hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	0		0		0		0
Unrealized foreign currency translation gains (losses) during period	151		(522)		(228)		(21)
Net investment hedge | Foreign currency forwards
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	23		43		85		119
Unrealized foreign currency translation gains (losses) during period	54		(225)		(171)		74
Non-qualifying strategies
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	(145)		394		(227)		(170)
Non-qualifying strategies | Foreign currency swaps | Variable Interest Entity
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	(115)		44		(142)		(172)
Non-qualifying strategies | Foreign currency swaps | Consolidated Entity Excluding Variable Interest Entities (VIE)
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative					0		2
Non-qualifying strategies | Foreign currency forwards
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	(16)		0		(23)		17
Non-qualifying strategies | Foreign currency options
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	(10)		191		(29)		9
Non-qualifying strategies | Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in income on derivative	$ (4)		$ 159		$ (33)		$ (26)

[1] Impact of cash flow hedges reported as net investment gains (losses) includes $1 of losses reclassified from accumulated other comprehensive income (loss) into earnings during the three-month period ended September 30, 2025, and $1 of losses during the three-month period ended September 30, 2024.

[2] Impact of cash flow hedges reported as net investment gains (losses) includes $3 of losses reclassified from accumulated other comprehensive income (loss) into earnings during the nine-month period ended September 30, 2025, and $3 of losses during the nine-month period ended September 30, 2024.