Segment Reporting - Expenses Adjustment Represents Elimination of Intercompany Expenses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Other non-operating (income) expense	$ (9.9)	$ (39.6)	$ (11.7)	$ (14.0)
Total expenses adjustment	795.3	705.1	2,665.9	2,846.7
Reconciling Items
Segment Reporting Information [Line Items]
Equity-based compensation issued in conjunction with the initial public offering, acquisitions and strategic investments	54.5	56.3	202.1	209.7
Acquisition related charges, including amortization of intangibles and impairment	209.6	24.5	247.9	166.6
Other non-operating (income) expense	(9.9)	(39.6)	(11.7)	(14.0)
Tax benefit (expense) associated with performance fee compensation	(5.1)	15.0	(19.4)	(23.5)
Non-Carlyle economic interests in acquired business	26.2	11.9	134.6	156.5
Other adjustments	0.1	1.6	3.1	2.5
Total expenses adjustment	217.9	25.4	388.8	315.4
Eliminations
Segment Reporting Information [Line Items]
Other non-operating (income) expense	0.0	0.0	0.0	0.0
Total expenses adjustment	$ (57.5)	$ (44.3)	$ (167.8)	$ (182.4)