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Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The following table shows the carrying amount of goodwill by reportable segment as of December 31, 2022 and 2021:             
AmmoniaGranular UreaUANANOtherTotal
(in millions)
Balance as of December 31, 2021$579 $828 $576 $69 $39 $2,091 
Effect of exchange rate changes(2)— — — — (2)
Balance as of December 31, 2022$577 $828 $576 $69 $39 $2,089 
Schedule of Finite-Lived Intangible Assets
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 impairment, and net of accumulated amortization, as follows:
 December 31, 2022December 31, 2021
 Gross
Carrying
Amount		Accumulated
Amortization		NetGross
Carrying
Amount		Accumulated
Amortization		Net
 (in millions)
Customer relationships(1)
$50 $(35)$15 $84 $(60)$24 
Trade names(2)
— — — 31 (10)21 
Total intangible assets$50 $(35)$15 $115 $(70)$45 
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(1)As of December 31, 2022, the gross carrying amount for customer relationships is net of impairment charges related to our U.K. operations of $55 million, of which $6 million was recorded in 2022 and $49 million was recorded in 2021. As of December 31, 2021, the gross carrying amount for customer relationships is net of impairment charges of $49 million, which were recorded in 2021.
(2)As of December 31, 2022, trade names, which are related to our U.K. operations, had been written down to zero as a result of impairment charges of $18 million, including $17 million recorded in 2022, and $1 million recorded in 2021. At December 31, 2021, the gross carrying amount for trade names is net of impairment charges of $1 million, which were recorded in 2021.