Business Acquisitions - Consideration Transferred (Details) - VFC $ / shares in Units, $ in Millions	Feb. 07, 2019 USD ($) $ / shares shares
Business Acquisition [Line Items]
Total Covetrus shares issued to VFC shareholders (in shares) | shares	39,742,089
Per share price (in actuals) (in usd per share) | $ / shares	$ 43.05
Total fair value of shares issued to VFC shareholders	$ 1,711
Fair value of VFC replacement stock option awards attributable to pre-merger service	62
VFC debt repaid at close	24
VFC expenses paid at close	18
Less VFC cash used to fund transaction	(9)
Total consideration	$ 1,806