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FAIR VALUE MEASUREMENTS - Changes in Level III Assets (Details) - Level III - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	$ 58,050,471	$ 40,861,523
Transfers In / (Out) - Changes in Consolidation	655,303	(5,672,986)
Transfers In	493,525	815,522
Transfers Out	(399,367)	(2,630,913)
Net Purchases/Issuances/Sales/Settlements	13,922,921	15,798,158
Net Unrealized and Realized Gains (Losses)	(1,410,146)	8,885,494
Change in OCI	(488,092)	(6,327)
Balance, End of Period	70,824,615	58,050,471
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(1,602,844)	7,905,712
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	$ (451,798)	$ 15,579
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Liability, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]	Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Fair Value, Recurring Basis, Unobservable Input Reconciliation Asset, Gain (Loss) Statement Of Income Extensible List Not Disclosed		Net Unrealized and Realized Gains (Losses)
Fair Value Liabilities, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income, Extensible List Not Disclosed Flag		Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date
Asset Management
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	$ 44,793,124	$ 33,695,354
Transfers In / (Out) - Changes in Consolidation	655,303	(5,672,986)
Transfers In	9,617	127,516
Transfers Out	(235,277)	(2,556,949)
Net Purchases/Issuances/Sales/Settlements	8,703,458	10,885,612
Net Unrealized and Realized Gains (Losses)	(824,876)	8,304,163
Change in OCI	(4,468)	10,414
Balance, End of Period	53,096,881	44,793,124
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(1,358,622)	7,883,661
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	10,414
Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	13,257,347	7,166,169
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	483,908	688,006
Transfers Out	(164,090)	(73,964)
Net Purchases/Issuances/Sales/Settlements	5,219,463	4,912,546
Net Unrealized and Realized Gains (Losses)	(585,270)	581,331
Change in OCI	(483,624)	(16,741)
Balance, End of Period	17,727,734	13,257,347
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(244,222)	22,051
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	(451,798)	5,165
AFS fixed maturity securities | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	8,479,061	3,702,548
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	343,338	510,282
Transfers Out	(88,076)	(69,814)
Net Purchases/Issuances/Sales/Settlements	1,546,037	4,352,786
Net Unrealized and Realized Gains (Losses)	(66,638)	0
Change in OCI	(483,624)	(16,741)
Balance, End of Period	9,730,098	8,479,061
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	(451,798)	5,165
AFS fixed maturity securities | Corporate Securities | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	7,650,660	3,504,578
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	0	111,805
Transfers Out	(88,076)	(65,664)
Net Purchases/Issuances/Sales/Settlements	1,177,295	4,112,225
Net Unrealized and Realized Gains (Losses)	(59,342)	0
Change in OCI	(369,880)	(12,284)
Balance, End of Period	8,310,657	7,650,660
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	(328,184)	5,973
AFS fixed maturity securities | Structured securities | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	828,401	197,970
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	343,338	398,477
Transfers Out	0	(4,150)
Net Purchases/Issuances/Sales/Settlements	368,742	240,561
Net Unrealized and Realized Gains (Losses)	(7,296)	0
Change in OCI	(113,744)	(4,457)
Balance, End of Period	1,419,441	828,401
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	(123,614)	(808)
Trading Fixed Maturity Securities | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	983,799	691,311
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	140,570	172,721
Transfers Out	(76,014)	(4,150)
Net Purchases/Issuances/Sales/Settlements	452,103	124,065
Net Unrealized and Realized Gains (Losses)	(184,624)	(148)
Change in OCI	0	0
Balance, End of Period	1,315,834	983,799
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(186,153)	(392)
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Trading Fixed Maturity Securities | Corporate Securities | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	565,025	676,650
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	11,826	0
Transfers Out	(44,273)	0
Net Purchases/Issuances/Sales/Settlements	219,892	(111,516)
Net Unrealized and Realized Gains (Losses)	(80,447)	(109)
Change in OCI	0	0
Balance, End of Period	672,023	565,025
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(79,031)	(1,332)
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Trading Fixed Maturity Securities | Structured securities | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	418,774	14,661
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	128,744	172,721
Transfers Out	(31,741)	(4,150)
Net Purchases/Issuances/Sales/Settlements	232,211	235,581
Net Unrealized and Realized Gains (Losses)	(104,177)	(39)
Change in OCI	0	0
Balance, End of Period	643,811	418,774
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(107,122)	940
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Equity securities at fair value | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	32,937	66,660
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	0	0
Transfers Out	0	0
Net Purchases/Issuances/Sales/Settlements	195	(86,778)
Net Unrealized and Realized Gains (Losses)	(16,846)	53,055
Change in OCI	0	0
Balance, End of Period	16,286	32,937
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(16,846)	20,292
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Mortgage and other loan receivables | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	832,674	928,673
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	0	0
Transfers Out	0	0
Net Purchases/Issuances/Sales/Settlements	54,239	(98,120)
Net Unrealized and Realized Gains (Losses)	(99,398)	2,121
Change in OCI	0	0
Balance, End of Period	787,515	832,674
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(84,219)	(1,515)
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Other investments | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	1,603,345	437,275
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	0	5,003
Transfers Out	0	0
Net Purchases/Issuances/Sales/Settlements	3,167,542	630,457
Net Unrealized and Realized Gains (Losses)	112,554	530,610
Change in OCI	0	0
Balance, End of Period	4,883,441	1,603,345
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	42,996	3,666
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Income assumed from funds withheld receivable at interest | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	31,740	0
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	0	0
Transfers Out	0	0
Net Purchases/Issuances/Sales/Settlements	10,435	0
Net Unrealized and Realized Gains (Losses)	(29,390)	31,740
Change in OCI	0	0
Balance, End of Period	12,785	31,740
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Reinsurance recoverable | Insurance
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	1,293,791	1,339,702
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	0	0
Transfers Out	0	0
Net Purchases/Issuances/Sales/Settlements	(11,088)	(9,864)
Net Unrealized and Realized Gains (Losses)	(300,928)	(36,047)
Change in OCI	0	0
Balance, End of Period	981,775	1,293,791
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Private Equity | Investments | Asset Management
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	23,322,634	15,234,904
Transfers In / (Out) - Changes in Consolidation	(49,000)	0
Transfers In	0	5,034
Transfers Out	(138,220)	(504,112)
Net Purchases/Issuances/Sales/Settlements	2,496,973	2,672,278
Net Unrealized and Realized Gains (Losses)	(295,430)	5,914,530
Change in OCI	0	0
Balance, End of Period	25,336,957	23,322,634
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(593,364)	5,610,159
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Credit | Investments | Asset Management
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	5,826,661	9,172,848
Transfers In / (Out) - Changes in Consolidation	34,245	(5,461,589)
Transfers In	9,617	86,135
Transfers Out	(96,218)	0
Net Purchases/Issuances/Sales/Settlements	362,875	1,898,617
Net Unrealized and Realized Gains (Losses)	(346,686)	120,236
Change in OCI	(4,468)	10,414
Balance, End of Period	5,786,026	5,826,661
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(278,038)	143,647
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	10,414
Real Assets | Investments | Asset Management
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	11,389,530	5,924,575
Transfers In / (Out) - Changes in Consolidation	0	(208,518)
Transfers In	0	17,567
Transfers Out	0	(1,914,962)
Net Purchases/Issuances/Sales/Settlements	5,115,282	5,996,313
Net Unrealized and Realized Gains (Losses)	510,300	1,574,555
Change in OCI	0	0
Balance, End of Period	17,015,112	11,389,530
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	114,614	1,443,458
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Equity Method - Other | Investments | Asset Management
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	1,013,807	1,014,378
Transfers In / (Out) - Changes in Consolidation	156,183	0
Transfers In	0	0
Transfers Out	0	(22,601)
Net Purchases/Issuances/Sales/Settlements	603,992	(250,391)
Net Unrealized and Realized Gains (Losses)	(149,562)	272,421
Change in OCI	0	0
Balance, End of Period	1,624,420	1,013,807
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(142,352)	222,087
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Other Investments | Investments | Asset Management
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	3,240,013	2,341,981
Transfers In / (Out) - Changes in Consolidation	513,875	(2,879)
Transfers In	0	18,780
Transfers Out	(839)	(115,274)
Net Purchases/Issuances/Sales/Settlements	93,743	518,817
Net Unrealized and Realized Gains (Losses)	(512,426)	478,588
Change in OCI	0	0
Balance, End of Period	3,334,366	3,240,013
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	(459,482)	520,477
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	0	0
Other Derivatives | Investments | Asset Management
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Balance, Beg. of Period	479	6,668
Transfers In / (Out) - Changes in Consolidation	0	0
Transfers In	0	0
Transfers Out	0	0
Net Purchases/Issuances/Sales/Settlements	30,593	49,978
Net Unrealized and Realized Gains (Losses)	(31,072)	(56,167)
Change in OCI	0	0
Balance, End of Period	0	479
Changes in Net Unrealized Gains (Losses) Included in Earnings related to Level III Assets and Liabilities still held as of the Reporting Date	0	(56,167)
Changes in Net Unrealized Gains (Losses) Included in OCI related to Level III Assets and Liabilities still held as of the Reporting Date	$ 0	$ 0

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Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers In (Out) of Level 3 Due to Deconsolidation of Funds

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Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held.

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Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of purchases, (sales), issuances and (settlements) of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Indicates line item in statement in which other comprehensive income (OCI) is reported that includes gain (loss) from asset measured at fair value using unobservable input (level 3).

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