Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Loss

The following table presents the changes in Accumulated other comprehensive loss, net of applicable taxes, by component:

	Derivative Gain (Loss)		Gain (Loss) on Pension Adjustment		Foreign Currency Translation Gain (Loss)		Unrealized Gain (Loss) from Foreign Currency Hedging		Total
Balance as of December 30, 2017	$	—	$	(2)	$	(41)	$	1	$	(42)
Other comprehensive income (loss) attributable to Covetrus before reclassifications	—		2		(41)		(1)		(40)
Period change	—		2		(41)		(1)		(40)
Balance as of December 29, 2018	—		—		(82)		—		(82)
Other comprehensive income (loss) attributable to Covetrus before reclassifications	(1)		—		(4)		—		(5)
Reclassified from Accumulated other comprehensive loss to earnings	1		—		—		—		1
Period change	—		—		(4)		—		(4)
Balance as of December 31, 2019	—		—		(86)		—		(86)
Other comprehensive income (loss) attributable to Covetrus before reclassifications	(8)		—		21		—		13
Reclassified from Accumulated other comprehensive loss to earnings	5		—		2		—		7
Period change	(3)		—		23		—		20
Balance as of December 31, 2020	$	(3)	$	—	$	(63)	$	—	$	(66)