CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 54	$ (10)	$ 21	$ (23)
Other comprehensive income (loss), net of tax:
Foreign currency translation gain (loss)	6	4	(16)	5
Unrealized gain (loss) on derivative instruments	1	0	(7)	0
Total other comprehensive income (loss)	7	4	(23)	5
Comprehensive income (loss)	61	(6)	(2)	(18)
Comprehensive (income) loss attributable to redeemable non-controlling interests:
Net income	0	0	(1)	0
Foreign currency translation (gain) loss	0	0	(2)	1
Comprehensive income attributable to redeemable non-controlling interests	0	0	(3)	1
Comprehensive income (loss) attributable to Covetrus	$ 61	$ (6)	$ (5)	$ (17)