EQUITY BASED COMPENSATION - Awards Rollforward (Details)	9 Months Ended
	Sep. 30, 2020 $ / shares shares
KKR Holdings Principal Awards
Shares
Balance at the beginning of the period (in shares) | shares	16,569,479
Granted (in shares) | shares	0
Vested (in shares) | shares	(3,029,479)
Forfeitures (in shares) | shares	(360,000)
Balance at the end of the period (in shares) | shares	13,180,000
Weighted Average Grant Date Fair Value
Balance at the beginning of the period (in dollars per share) | $ / shares	$ 14.43
Granted (in dollars per share) | $ / shares	0
Vested (in dollars per share) | $ / shares	11.86
Forfeitures (in dollars per share) | $ / shares	11.19
Balance at the end of the period (in dollars per share) | $ / shares	$ 15.12
Equity Incentive Plans
Shares
Balance at the beginning of the period (in shares) | shares	22,697,645
Granted (in shares) | shares	437,942
Vested (in shares) | shares	(6,687,215)
Forfeitures (in shares) | shares	(798,170)
Balance at the end of the period (in shares) | shares	15,650,202
Weighted Average Grant Date Fair Value
Balance at the beginning of the period (in dollars per share) | $ / shares	$ 18.46
Granted (in dollars per share) | $ / shares	25.91
Vested (in dollars per share) | $ / shares	15.57
Forfeitures (in dollars per share) | $ / shares	19.21
Balance at the end of the period (in dollars per share) | $ / shares	$ 19.87