Condensed Consolidating Financial Statements (Details 3) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 3,530.2	$ 1,710.8	$ 2,210.3	$ 2,274.9
Restricted cash	653.3	154.0
Accounts and notes receivable - net	215.7	230.9
Inventories - net	384.4	274.3
Prepaid income taxes		33.4
Deferred income taxes	44.6	60.0
Assets held for sale		74.3
Other	82.9	92.4
Total current assets	4,911.1	2,630.1
Property, plant and equipment - net	4,281.9	4,101.7
Investments in and advances to affiliates	933.5	926.0
Goodwill	2,094.6	2,095.8
Noncurrent assets held for sale		679.0
Other assets	254.4	245.5
Total assets	12,475.5	10,678.1
Current liabilities:
Accounts payable and notes payable and accrued expenses	593.7	564.1
Income taxes payable	347.1	73.3
Customer advances	477.3	120.6
Liabilities held for sale		26.8
Other	17.6	43.5
Total current liabilities	1,435.7	828.3
Long-term debt	4,592.3	3,098.1
Deferred income taxes	821.0	833.2
Noncurrent liabilities held for sale		154.5
Other noncurrent liabilities	318.2	325.6
Stockholders' equity:
Preferred stock
Common stock	0.6	0.6
Paid-in capital	1,612.0	1,594.3
Retained earnings	4,378.9	3,725.6
Treasury stock	(995.8)	(201.8)
Accumulated other comprehensive income (loss)	(52.0)	(42.6)	(110.1)	(49.6)
Total stockholders' equity	4,943.7	5,076.1
Noncontrolling interest	364.6	362.3	385.4	380.0
Total equity	5,308.3	5,438.4	6,117.7	6,282.2
Total liabilities and equity	12,475.5	10,678.1
Reportable legal entities | Parent
Current assets:
Cash and cash equivalents	0.1	0.1	2.2
Prepaid income taxes	1.2	0.9
Total current assets	1.3	1.0
Investments in and advances to affiliates	5,837.8	5,193.4
Due from affiliates	570.7	570.7
Total assets	6,409.8	5,765.1
Current liabilities:
Accounts payable and notes payable and accrued expenses	1,466.1	40.6
Other		648.4
Total current liabilities	1,466.1	689.0
Stockholders' equity:
Common stock	0.6	0.6
Paid-in capital	1,612.0	1,594.3
Retained earnings	4,378.9	3,725.6
Treasury stock	(995.8)	(201.8)
Accumulated other comprehensive income (loss)	(52.0)	(42.6)
Total stockholders' equity	4,943.7	5,076.1
Total equity	4,943.7	5,076.1
Total liabilities and equity	6,409.8	5,765.1
Reportable legal entities | CF Industries
Current assets:
Cash and cash equivalents	1,398.9	20.4	348.1	440.8
Accounts and notes receivable - net	1,760.0	287.1
Inventories - net	(1.2)	3.3
Assets held for sale		68.1
Other	14.6
Total current assets	3,172.3	378.9
Deferred income taxes	149.6	149.7
Investments in and advances to affiliates	8,247.5	8,161.1
Noncurrent assets held for sale		679.0
Other assets	75.0	60.7
Total assets	11,644.4	9,429.4
Current liabilities:
Accounts payable and notes payable and accrued expenses	260.5	354.2
Income taxes payable	366.8	29.1
Liabilities held for sale		26.8
Other	14.6	0.9
Total current liabilities	641.9	411.0
Long-term debt	4,592.3	3,098.1
Due to affiliates	572.4	572.4
Noncurrent liabilities held for sale		154.5
Stockholders' equity:
Paid-in capital	(12.6)	(12.6)
Retained earnings	5,902.4	5,248.6
Accumulated other comprehensive income (loss)	(52.0)	(42.6)
Total stockholders' equity	5,837.8	5,193.4
Total equity	5,837.8	5,193.4
Total liabilities and equity	11,644.4	9,429.4
Reportable legal entities | Other Subsidiaries
Current assets:
Cash and cash equivalents	2,131.2	1,690.3	1,860.0	1,834.1
Restricted cash	653.3	154.0
Accounts and notes receivable - net	802.1	1,172.2
Inventories - net	385.6	271.0
Prepaid income taxes	18.5	33.4
Deferred income taxes	44.6	60.0
Assets held for sale		6.2
Other	68.3	92.4
Total current assets	4,103.6	3,479.5
Property, plant and equipment - net	4,281.9	4,101.7
Investments in and advances to affiliates	933.4	925.8
Due from affiliates	1.7	1.7
Goodwill	2,094.6	2,095.8
Other assets	179.4	184.8
Total assets	11,594.6	10,789.3
Current liabilities:
Accounts payable and notes payable and accrued expenses	1,213.5	715.9
Income taxes payable		45.1
Customer advances	477.3	120.6
Other	3.0	84.9
Total current liabilities	1,693.8	966.5
Long-term debt	8.7
Deferred income taxes	970.6	982.9
Other noncurrent liabilities	318.2	325.6
Stockholders' equity:
Preferred stock	16.4	16.4
Common stock	1.1	1.1
Paid-in capital	7,823.0	7,823.0
Retained earnings	450.6	354.5
Accumulated other comprehensive income (loss)	(52.4)	(43.0)
Total stockholders' equity	8,238.7	8,152.0
Noncontrolling interest	364.6	362.3
Total equity	8,603.3	8,514.3
Total liabilities and equity	11,594.6	10,789.3
Eliminations
Current assets:
Accounts and notes receivable - net	(2,346.4)	(1,228.4)
Prepaid income taxes	(19.7)	(0.9)
Total current assets	(2,366.1)	(1,229.3)
Deferred income taxes	(149.6)	(149.7)
Investments in and advances to affiliates	(14,085.2)	(13,354.3)
Due from affiliates	(572.4)	(572.4)
Total assets	(17,173.3)	(15,305.7)
Current liabilities:
Accounts payable and notes payable and accrued expenses	(2,346.4)	(546.6)
Income taxes payable	(19.7)	(0.9)
Other		(690.7)
Total current liabilities	(2,366.1)	(1,238.2)
Long-term debt	(8.7)
Deferred income taxes	(149.6)	(149.7)
Due to affiliates	(572.4)	(572.4)
Stockholders' equity:
Preferred stock	(16.4)	(16.4)
Common stock	(1.1)	(1.1)
Paid-in capital	(7,810.4)	(7,810.4)
Retained earnings	(6,353.0)	(5,603.1)
Accumulated other comprehensive income (loss)	104.4	85.6
Total stockholders' equity	(14,076.5)	(13,345.4)
Total equity	(14,076.5)	(13,345.4)
Total liabilities and equity	$ (17,173.3)	$ (15,305.7)