Goodwill (Tables)

12 Months Ended

Dec. 31, 2017

Sensitivity Analysis WACC [Table Text Block]

Assuming that all other components of our fair value estimate remain unchanged, a change in the WACC would have the following effect on estimated fair values in excess of carrying values:



	Sensitivity Analysis - Percent of Fair Values in Excess of Carrying Values
	Current WACC	WACC Decreased by 50 Basis Points	WACC Decreased by 25 Basis Points	WACC Increased by 25 Basis Points	WACC Increased by 50 Basis Points
Phosphates Reporting Unit	18.5%	26.8%	22.7%	14.2%	9.7%
Potash Reporting Unit	8.5%	17.8%	13.2%	3.8%	(1.2)%

Goodwill

The changes in the carrying amount of goodwill, by reporting unit, as of December 31, 2017 and 2016, are as follows:



(in millions)	Phosphates		Potash		International Distribution			Total
Balance as of December 31, 2015	$	492.4	$	984.7	$	118.2		$	1,595.3
Foreign currency translation	—		28.9		6.7			35.6
Balance as of December 31, 2016	492.4		1,013.6		124.9			1,630.9
Foreign currency translation	—		63.3		(0.6		)	62.7
Balance as of December 31, 2017	$	492.4	$	1,076.9	$	124.3		$	1,693.6