CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (54)	$ (17)	$ (983)
Other comprehensive income (loss), net of tax:
Foreign currency translation gain (loss)	(16)	23	(3)
Gain (loss) on derivative instruments	3	(3)	(1)
Total other comprehensive income (loss)	(13)	20	(4)
Comprehensive income (loss)	(67)	3	(987)
Comprehensive (income) loss attributable to redeemable non-controlling interests:
Net (income) loss	0	(2)	3
Foreign currency translation (gain) loss	0	(2)	(1)
Comprehensive (income) loss attributable to redeemable non-controlling interests	0	(4)	2
Comprehensive income (loss) attributable to Covetrus	$ (67)	$ (1)	$ (985)