Revenue

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Note 5. Revenue

Our sales rebates and discounts are based on specific agreements and the majority relate to sales in the U.S. As of March 31, 2020 and 2019, the liability for sales rebates and discounts in the U.S. represents approximately 71% and 72%, respectively, of our total liability with the next largest country representing approximately 8% and 8%, respectively, of our total liability.

The following table summarizes the activity in the sales rebates and discounts liability in the U.S.:


	Three Months Ended March 31,
	2020		2019
Beginning balance	$	150.4	$	118.5
Reduction of revenue	60.5		65.7
Payments	(73.3)		(64.2)
Ending balance	$	137.6	$	120.0

Adjustments to revenue recognized as a result of changes in estimates for the judgments described above during the three months ended March 31, 2020 and 2019 for product shipped in previous periods were not material.

Actual product returns were approximately 1.6% and 0.3% of net revenue for the three months ended March 31, 2020 and 2019, respectively.

Disaggregation of Revenue

The following table summarizes our revenue disaggregated by product category:


	Three Months Ended March 31,
	2020		2019
Companion Animal Disease Prevention	$	140.3	$	185.9
Companion Animal Therapeutics	65.8		81.4
Food Animal Future Protein & Health	180.0		167.2
Food Animal Ruminants & Swine	252.6		274.1
Strategic Exits⁽¹⁾	19.0		22.5
Revenue	$	657.7	$	731.1

⁽¹⁾Represents revenue from business activities we have either exited or made a strategic decision to exit.