Maximum annual UAN eligible for purchases

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- Definition

Maximum annual granular urea eligible for purchases

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Number of parent companies

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Supply agreement, term

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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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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Investments - Narrative (Details)		3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
Investments - Narrative (Details)	Feb. 01, 2016 USD ($)	Aug. 31, 2018 USD ($) company T	May 31, 2018 USD ($)	Feb. 28, 2018 USD ($)	Nov. 30, 2017 USD ($)	Aug. 31, 2017 USD ($)	May 31, 2017 USD ($)	Feb. 28, 2017 USD ($)	Nov. 30, 2016 USD ($)	Feb. 28, 2018 USD ($)	Feb. 28, 2017 USD ($)	May 31, 2018 USD ($)	May 31, 2017 USD ($)	Aug. 31, 2018 USD ($) company T	Aug. 31, 2017 USD ($)	Aug. 31, 2016 USD ($)	Feb. 01, 2096 USD ($)
Schedule of Equity Method Investments [Line Items]
Equity (income) loss from investments		$ (16,404,000)	$ (59,308,000)	$ (39,441,000)	$ (38,362,000)	$ (12,817,000)	$ (48,393,000)	$ (35,800,000)	$ (40,328,000)	$ (77,803,000)	$ (76,128,000)	$ (137,111,000)	$ (124,521,000)	$ (153,515,000)	$ (137,338,000)	$ (175,777,000)
Number of parent companies \| company		3												3
CF Industries Nitrogen
Schedule of Equity Method Investments [Line Items]
Amount invested in equity method investment	$ 2,800,000,000
Supply agreement, term	80 years
Maximum annual granular urea eligible for purchases \| T		1,100,000												1,100,000
Maximum annual UAN eligible for purchases \| T		580,000												580,000
Equity method investments		$ 2,735,073,000				2,756,076,000								$ 2,735,073,000	2,756,076,000
CF Industries Nitrogen \| Forecast
Schedule of Equity Method Investments [Line Items]
Equity method investments																	$ 0
CF Industries Nitrogen \| Nitrogen Production
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		10.00%												10.00%
Equity (income) loss from investments														$ 106,900,000	66,500,000
Ventura Foods
Schedule of Equity Method Investments [Line Items]
Equity method investments		$ 360,150,000				347,016,000								$ 360,150,000	347,016,000
Ventura Foods \| Ag
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		50.00%												50.00%
Ardent Mills
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage		12.00%												12.00%
Equity method investments		$ 205,898,000				$ 206,529,000								$ 205,898,000	$ 206,529,000