CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (33)	$ (14)
Other comprehensive (loss) income, net of tax:
Foreign currency translation (loss) gain	(22)	1
Unrealized loss on derivative instruments	(8)	0
Total other comprehensive (loss) income	(30)	1
Comprehensive loss	(63)	(13)
Comprehensive (income) loss attributable to redeemable non-controlling interests:
Net loss	0	1
Foreign currency translation gain	(1)	0
Comprehensive (income) loss attributable to redeemable non-controlling interests	(1)	1
Comprehensive loss attributable to Covetrus	$ (64)	$ (12)