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Segment Disclosures (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended					12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment reporting information
Net sales						$ 11,186	$ 6,538	$ 4,124
U.K. long-lived and intangible asset impairment		$ 87			$ 236	239	236	0
U.K. goodwill impairment				$ 26	259	0	285	0
Goodwill and Intangible Asset Impairment					$ 495		521
Restructuring, Settlement and Impairment Provisions			$ 162			258
Ince Facility
Segment reporting information
Asset Retirement Obligation, Period Increase (Decrease)	$ 6		$ 9
Goodwill and Intangible Asset Impairment							521
Ammonia
Segment reporting information
Net sales						3,090	1,787	1,020
U.K. goodwill impairment						9
Granular Urea
Segment reporting information
Net sales						2,892	1,880	1,248
UAN
Segment reporting information
Net sales						3,572	1,788	1,063
AN
Segment reporting information
Net sales						845	510	455
U.K. goodwill impairment						241
Other
Segment reporting information
U.K. goodwill impairment						35
Operating segments | Ammonia
Segment reporting information
Net sales						3,090	1,787	1,020
Operating segments | Granular Urea
Segment reporting information
Net sales						2,892	1,880	1,248
Operating segments | UAN
Segment reporting information
Net sales						3,572	1,788	1,063
Operating segments | AN
Segment reporting information
Net sales						845	510	455
Operating segments | Other
Segment reporting information
Net sales						$ 787	$ 573	$ 338

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