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Financing Agreements (Details) - USD ($) |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 10, 2021 | Mar. 20, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 05, 2019 | Jul. 29, 2016
Financing agreements |  |  |  |  |  |  |
Long-term Debt, Gross |  |  | $ 3,500,000,000 | $ 4,000,000,000 |  |  |
cf_LongtermDebtCurrentMaturitiesGross |  |  | 0 | 250,000,000 |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | 3,465,000,000 | 3,961,000,000 |  |  |
Long-term debt, net of current maturities |  |  | 3,465,000,000 | 3,712,000,000 |  |  |
Loss on debt extinguishment |  |  | 19,000,000 | 0 | $ 21,000,000 |  |
Line of Credit Facility, Maximum Amount Outstanding During Period |  |  | $ 500,000,000 |  |  |  |
Line of Credit Facility, Interest Rate During Period |  |  | 2.05% |  |  |  |
Current maturities of long-term debt |  |  | $ 0 | 249,000,000 |  |  |
cf_LongtermDebtExcludingCurrentMaturitiesGross |  |  | 3,500,000,000 | 3,750,000,000 |  |  |
CF Industries |  |  |  |  |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  | 8,000,000 | 9,000,000 |  |  |
Unamortized Debt Issuance Expense |  |  | 27,000,000 | $ 30,000,000 |  |  |
CF Industries | Senior Credit Agreement |  |  |  |  |  |  |
Debt Instruments |  |  |  |  |  |  |
Available credit |  |  | 750,000,000 |  |  |  |
Line of credit facility, amount outstanding |  |  | 0 |  |  |  |
Letters of credit outstanding, amount |  |  | $ 0 |  |  |  |
Senior Notes | CF Industries | 3.450% due 2023 |  |  |  |  |  |  |
Financing agreements |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 3.45% | 3.45% |  |  |
Long-term Debt, Gross |  |  | $ 500,000,000 | $ 750,000,000 |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 499,000,000 | $ 748,000,000 |  |  |
Loss on debt extinguishment | $ (13,000,000) |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 3.562% | 3.562% |  |  |
Early Repayment of Senior Debt | 250,000,000 |  |  |  |  |  |
Debt Instrument, Face Amount | 750,000,000 |  |  |  |  |  |
Extinguishment of Debt, Amount | $ 265,000,000 |  |  |  |  |  |
Senior Notes | CF Industries | 5.150% due 2034 |  |  |  |  |  |  |
Financing agreements |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 5.15% | 5.15% |  |  |
Long-term Debt, Gross |  |  | $ 750,000,000 | $ 750,000,000 |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 741,000,000 | $ 741,000,000 |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 5.279% | 5.279% |  |  |
Senior Notes | CF Industries | 4.950% due 2043 |  |  |  |  |  |  |
Financing agreements |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 4.95% | 4.95% |  |  |
Long-term Debt, Gross |  |  | $ 750,000,000 | $ 750,000,000 |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 742,000,000 | $ 742,000,000 |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 5.031% | 5.031% |  |  |
Senior Notes | CF Industries | 5.375% due 2044 |  |  |  |  |  |  |
Financing agreements |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 5.375% | 5.375% |  |  |
Long-term Debt, Gross |  |  | $ 750,000,000 | $ 750,000,000 |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 741,000,000 | $ 741,000,000 |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 5.465% | 5.465% |  |  |
Senior Notes | CF Industries | 3.400% due December 2021 |  |  |  |  |  |  |
Financing agreements |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 3.40% | 3.40% |  |  |
Long-term Debt, Gross |  |  | $ 0 | $ 250,000,000 |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 0 | $ 249,000,000 |  |  |
Loss on debt extinguishment |  | $ (6,000,000) |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 3.782% | 3.782% |  |  |
Early Repayment of Senior Debt |  | 250,000,000 |  |  |  |  |
Extinguishment of Debt, Amount |  | $ 258,000,000 |  |  |  |  |
Senior Notes | CF Industries | 4.500% due December 2026(2) |  |  |  |  |  |  |
Financing agreements |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 4.50% | 4.50% |  |  |
Long-term Debt, Gross |  |  | $ 750,000,000 | $ 750,000,000 |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 742,000,000 | $ 740,000,000 |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  |  | 4.759% | 4.759% |  |  |
Revolving Credit Facility | Line of Credit | CF Industries | Amendment No. 4 to the Third Amended and Restated Revolving Credit Agreement |  |  |  |  |  |  |
Debt Instruments |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  | $ 750,000,000 |
Letter of Credit | Line of Credit |  |  |  |  |  |  |
Debt Instruments |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | $ 250,000,000 |  |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |
Line of Credit Facility, Fair Value of Amount Outstanding |  |  | $ 223,000,000 |  |  |  |
Letter of Credit | Line of Credit | CF Industries | July 2016 Credit Agreement Amendment |  |  |  |  |  |  |
Debt Instruments |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  | $ 125,000,000

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Amount, after accumulated amortization, of debt discount. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 + Details
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- Definition The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Fair value of the amount outstanding under the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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