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Equity Method Investment-Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Point Lisas Nitrogen Limited (PLNL)
Equity method investments
Ownership interest (as a percent)	50.00%		50.00%
Point Lisas Nitrogen Limited (PLNL)
Equity method investments
Equity Method Investment	$ 35		$ 35
Obligation to purchase ammonia (as a percent)			50.00%
Purchases of ammonia from PLNL	$ 45	$ 22	$ 100	$ 68

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