Represents the period for which product is to be supplied under the agreement.

No definition available.

Name:	cf_PeriodOfProductsToBeSuppliedUnderAgreement
Namespace Prefix:	cf_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the quantity of product to be supplied annually under the agreement.

+ References

No definition available.

+ Details

Name:	cf_QuantityOfProductsToBeSuppliedUnderAgreementAnnually
Namespace Prefix:	cf_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of asset retirement obligation trust and escrow funds transferred by the entity in the significant acquisition or disposal.

+ References

No definition available.

+ Details

Name:	cf_SignificantAcquisitionsAndDisposalsAssetRetirementObligationTrustAndEscrowFundsTransferred
Namespace Prefix:	cf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The value of all consideration given or received by the Entity in the significant acquisition or disposal.

+ References

No definition available.

+ Details

Name:	us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Subsequent Events (Details) (USD $)		0 Months Ended
Subsequent Events (Details) (USD $)	Sep. 30, 2013 PLNL	Oct. 28, 2013 Subsequent event Mosaic Ammonia Minimum T	Oct. 28, 2013 Subsequent event Mosaic Ammonia Maximum T	Oct. 28, 2013 Subsequent event Mosaic Phosphate mining and manufacturing business
Subsequent events
Cash consideration				$ 1,400,000,000
Quantity of product to be supplied per year under the long-term agreement (in tons)		600,000	800,000
Asset retirement obligation trust and escrow funds transferred				$ 200,000,000
Period for which product is to be supplied under the long-term agreement			15 years
Ownership interest (as a percent)	50.00%