RELATED PARTY TRANSACTIONS - Costs Paid (Details) - Barging, Urea Transloading And Other Transportion Services - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
AEGCo
Related Party Transaction [Line Items]
Related party transaction, amount	$ 15	$ 10	$ 9
APCo
Related Party Transaction [Line Items]
Related party transaction, amount	36	47	39
WPCo
Related Party Transaction [Line Items]
Related party transaction, amount	$ 7	$ 8	$ 11

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details