Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The following table shows the carrying amount of goodwill by reportable segment as of December 31, 2018 and 2017:

	Ammonia			Granular Urea			UAN		AN			Other			Total
	(in millions)
Balance as of December 31, 2017	$	587		$	829		$	576	$	306		$	73		$	2,371
Effect of exchange rate changes	(1		)	(1		)	—		(14		)	(2		)	(18		)
Balance as of December 31, 2018	$	586		$	828		$	576	$	292		$	71		$	2,353

Schedule of Finite-Lived Intangible Assets [Table Text Block]

All of our identifiable intangible assets have definite lives and are presented in other assets on our consolidated balance sheets at gross carrying amount, net of accumulated amortization, as follows:

	December 31, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
	(in millions)
Intangible assets:
Customer relationships	$	127	$	(37	)	$	90	$	132	$	(31	)	$	101
TerraCair brand	10		(10		)	—		10		(10		)	—
Trade names	30		(5		)	25		32		(4		)	28
Total intangible assets	$	167	$	(52	)	$	115	$	174	$	(45	)	$	129

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Total estimated amortization expense for each of the five succeeding fiscal years is as follows:

	Estimated Amortization Expense
	(in millions)
2019	$	8
2020	8
2021	8
2022	8
2023	8