EQUITY - Noncontrolling Interests Held by KKR Holdings (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Noncontrolling Interests Held by KKR Holdings
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Net income (loss) attributable to noncontrolling interests	$ (265,867)	$ 751,468	$ (313,019)	$ 1,755,122
Noncontrolling Interests
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at the beginning of the period	41,501,791	31,534,729	40,474,565	27,083,098
Net income (loss) attributable to noncontrolling interests	(1,193,734)	2,946,262	(34,549)	5,191,793
Other comprehensive income (loss), net of tax	(1,772,144)	756,204	(3,693,213)	(123,184)
Exchange of KKR Holdings Units to Common Stock	(12,865)	(65,162)	(12,865)	(122,065)
Equity-based and other non-cash compensation	145,670	30,392	229,062	66,708
Capital contributions	3,852,457	2,052,560	7,432,048	6,062,552
Capital distributions	(1,742,028)	(916,582)	(3,615,901)	(1,944,416)
Holdings Merger	(6,959,322)		(6,959,322)
Change in KKR & Co. Inc.'s Ownership Interest	(155,284)		(155,284)
Impact of Acquisition				190,405
Changes in consolidation				(66,488)
Balance at the end of the period	33,664,541	36,338,403	33,664,541	36,338,403
Noncontrolling Interests | Noncontrolling Interests in Consolidated Entities and Other
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at the beginning of the period	33,770,218	24,398,139	32,043,699	20,570,716
Net income (loss) attributable to noncontrolling interests	(927,867)	2,194,794	278,470	3,436,671
Other comprehensive income (loss), net of tax	(1,327,716)	503,443	(2,618,799)	(77,711)
Exchange of KKR Holdings Units to Common Stock	0	0	0	0
Equity-based and other non-cash compensation	65,157	19,856	128,728	39,738
Capital contributions	3,852,457	2,052,560	7,432,048	6,062,527
Capital distributions	(1,612,424)	(765,904)	(3,444,321)	(1,752,970)
Holdings Merger	0		0
Change in KKR & Co. Inc.'s Ownership Interest	(155,284)		(155,284)
Impact of Acquisition				190,405
Changes in consolidation				(66,488)
Balance at the end of the period	33,664,541	28,402,888	33,664,541	28,402,888
Noncontrolling Interests | Noncontrolling Interests Held by KKR Holdings
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at the beginning of the period	7,731,573	7,136,590	8,430,866	6,512,382
Net income (loss) attributable to noncontrolling interests	(265,867)	751,468	(313,019)	1,755,122
Other comprehensive income (loss), net of tax	(444,428)	252,761	(1,074,414)	(45,473)
Exchange of KKR Holdings Units to Common Stock	(12,865)	(65,162)	(12,865)	(122,065)
Equity-based and other non-cash compensation	80,513	10,536	100,334	26,970
Capital contributions	0	0	0	25
Capital distributions	(129,604)	(150,678)	(171,580)	(191,446)
Holdings Merger	(6,959,322)		(6,959,322)
Change in KKR & Co. Inc.'s Ownership Interest	0		0
Impact of Acquisition				0
Changes in consolidation				0
Balance at the end of the period	$ 0	$ 7,935,515	$ 0	$ 7,935,515