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Impairment Testing (Carrying Amounts of Intangible Assets) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Intangible assets having an indefinite useful life [Line Items]    
Intangible assets having an indefinite useful life $ 575 $ 562
Goodwill [Member]    
Intangible assets having an indefinite useful life [Line Items]    
Intangible assets having an indefinite useful life 543 530
Trademarks [Member]    
Intangible assets having an indefinite useful life [Line Items]    
Intangible assets having an indefinite useful life 32 32
Phosphate Solutions [Member] | Goodwill [Member]    
Intangible assets having an indefinite useful life [Line Items]    
Intangible assets having an indefinite useful life 90 114
Industrial Products [Member] | Goodwill [Member]    
Intangible assets having an indefinite useful life [Line Items]    
Intangible assets having an indefinite useful life 89 91
Growing Solutions [Member] | Goodwill [Member]    
Intangible assets having an indefinite useful life [Line Items]    
Intangible assets having an indefinite useful life 318 289
Potash [Member] | Goodwill [Member]    
Intangible assets having an indefinite useful life [Line Items]    
Intangible assets having an indefinite useful life 18 20
Other [Member] | Goodwill [Member]    
Intangible assets having an indefinite useful life [Line Items]    
Intangible assets having an indefinite useful life $ 28 $ 16