Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 332.7	$ 252.0	$ (171.8)	$ 1,224.8
Other comprehensive income (loss)
Foreign currency translation adjustments	27.0	(31.4)	16.3	(30.2)
Unrealized gains (losses) on Fortitude Re available-for-sale securities	0.0	4.6	(20.0)	17.0
Defined benefit plans
Unrealized gain (loss) for the period	(0.4)	0.6	(2.2)	2.6
Less: reclassification adjustment for gain during the period, included in cash-based compensation and benefits expense	0.4	0.3	1.3	0.8
Other comprehensive income (loss)	27.0	(25.9)	(4.6)	(9.8)
Comprehensive income (loss)	359.7	226.1	(176.4)	1,215.0
Comprehensive income (loss) attributable to non-controlling interests in consolidated entities	42.4	8.2	(8.8)	37.7
Comprehensive income (loss) attributable to Carlyle Holdings	317.3	217.9	(167.6)	1,177.3
Comprehensive income attributable to non-controlling interests in Carlyle Holdings	0.0	133.7	0.0	789.0
Comprehensive income (loss) attributable to The Carlyle Group Inc.	$ 317.3	$ 84.2	$ (167.6)	$ 388.3