CF Industries (CF) 10-K 22 Feb 18 2017 Q4 Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Jan. 31, 2018	Jun. 30, 2017
Document and Entity Information
Entity Registrant Name	CF Industries Holdings, Inc.
Entity Central Index Key	1,324,404
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 6,493,898,814
Entity Common Stock, Shares Outstanding		233,292,049
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q4

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	May 22, 2016	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net sales		$ 1,099	$ 870	$ 1,124	$ 1,037	$ 867	$ 680	$ 1,134	$ 1,004	$ 4,130	$ 3,685	$ 4,308
Cost of sales										3,700	2,845	2,761
Gross margin		143	9	172	106	94	2	527	217	430	840	1,547
Selling, general and administrative expenses										192	174	170
Transaction costs	$ 150									0	179	57
Other operating—net										18	208	92
Total other operating costs and expenses										210	561	319
Equity in earnings (losses) of operating affiliates										9	(145)	(35)
Operating earnings										229	134	1,193
Interest expense										315	200	133
Interest income										(12)	(5)	(2)
Loss on debt extinguishment										(53)	(167)	0
Other non-operating—net										(2)	(2)	4
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates										(125)	(226)	1,058
Income tax (benefit) provision										(575)	(68)	396
Equity in earnings of non-operating affiliates—net of taxes										0	0	72
Net earnings (loss)										450	(158)	734
Less: Net earnings attributable to noncontrolling interests										92	119	34
Net earnings (loss) attributable to common stockholders		$ 465	$ (87)	$ 3	$ (23)	$ (320)	$ (30)	$ 47	$ 26	$ 358	$ (277)	$ 700
Net earnings (loss) per share attributable to common stockholders:
Basic (in dollars per share)		$ 1.99	$ (0.37)	$ 0.01	$ (0.10)	$ (1.38)	$ (0.13)	$ 0.20	$ 0.11	$ 1.53	$ (1.19)	$ 2.97
Diluted (in dollars per share)		$ 1.98	$ (0.37)	$ 0.01	$ (0.10)	$ (1.38)	$ (0.13)	$ 0.20	$ 0.11	$ 1.53	$ (1.19)	$ 2.96
Weighted-average common shares outstanding:
Basic (in shares)										233.5	233.1	235.3
Diluted (in shares)										233.9	233.1	236.1

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 450	$ (158)	$ 734
Other comprehensive income (loss):
Foreign currency translation adjustment—net of taxes	127	(74)	(157)
Derivatives—net of taxes	(1)	0	0
Defined benefit plans—net of taxes	9	(74)	67
Total other comprehensive income (loss)	135	(148)	(90)
Comprehensive income (loss)	585	(306)	644
Less: Comprehensive income attributable to noncontrolling interests	92	119	34
Comprehensive income (loss) attributable to common stockholders	$ 493	$ (425)	$ 610

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 835	$ 1,164	$ 286	$ 1,997
Restricted cash	0	5
Accounts receivable—net	307	236
Inventories	275	339
Prepaid income taxes	33	841
Other current assets	15	70
Total current assets	1,465	2,655
Property, plant and equipment—net	9,175	9,652	8,539
Investments in and advances to affiliates	108	139
Goodwill	2,371	2,345
Other assets	344	340
Total assets	13,463	15,131
Current liabilities:
Accounts payable and accrued expenses	472	638
Income taxes payable	2	1
Customer advances	89	42
Other current liabilities	17	5
Total current liabilities	580	686
Long-term debt	4,692	5,778
Deferred income taxes	1,047	1,630
Other liabilities	460	545
Stockholders' equity:
Preferred stock—$0.01 par value, 50,000,000 shares authorized	0	0
Common stock—$0.01 par value, 500,000,000 shares authorized, 2017—233,287,799 shares issued and 2016—233,141,771 shares issued	2	2
Paid-in capital	1,397	1,380
Retained earnings	2,443	2,365
Treasury stock—at cost, 2017—710 shares and 2016—27,602 shares	0	(1)
Accumulated other comprehensive loss	(263)	(398)	(250)	(160)
Total stockholders' equity	3,579	3,348
Noncontrolling interests	3,105	3,144	352
Total equity	6,684	6,492	$ 4,387	$ 4,572
Total liabilities and equity	$ 13,463	$ 15,131

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	233,287,799	233,141,771
Treasury stock, shares	710	27,602

CONSOLIDATED STATEMENTS OF EQUI

CONSOLIDATED STATEMENTS OF EQUITY - USD ($)	Total	Total Stockholders' Equity	$0.01 Par Value Common Stock	Treasury Stock	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance at Dec. 31, 2014	$ 4,572,000,000	$ 4,209,000,000	$ 2,000,000	$ (222,000,000)	$ 1,414,000,000	$ 3,175,000,000	$ (160,000,000)	$ 363,000,000
Increase (decrease) in equity
Net earnings	734,000,000	700,000,000	0	0	0	700,000,000	0	34,000,000
Net earnings (loss) attributable to common stockholders	700,000,000
Other comprehensive income:
Foreign currency translation adjustment—net of taxes	(157,000,000)	(157,000,000)	0	0	0	0	(157,000,000)
Unrealized net loss on hedging derivatives—net of taxes	0
Defined benefit plans—net of taxes	67,000,000	67,000,000	0	0	0	0	67,000,000	0
Comprehensive income (loss)	644,000,000	610,000,000						34,000,000
Purchases of treasury stock	(527,000,000)	(527,000,000)	0	(527,000,000)	0	0	0	0
Retirement of treasury stock	0	0	0	597,000,000	(62,000,000)	(535,000,000)	0	0
Acquisition of treasury stock under employee stock plans	(2,000,000)	(2,000,000)	0	(2,000,000)	0	0	0	0
Issuance of $0.01 par value common stock under employee stock plans	9,000,000	9,000,000	0	1,000,000	8,000,000	0	0	0
Stock-based compensation expense	16,000,000	16,000,000	0	0	16,000,000	0	0	0
Excess tax benefit from stock-based compensation	2,000,000	2,000,000	0	0	2,000,000	0	0	0
Cash dividends	(282,000,000)	(282,000,000)	0	0	0	(282,000,000)	0	0
Distributions declared to noncontrolling interest	(45,000,000)	0	0	0	0	0	0	(45,000,000)
Ending balance at Dec. 31, 2015	4,387,000,000	4,035,000,000	2,000,000	(153,000,000)	1,378,000,000	3,058,000,000	(250,000,000)	352,000,000
Increase (decrease) in equity
Net earnings	(158,000,000)	(277,000,000)	0	0	0	(277,000,000)	0	119,000,000
Net earnings (loss) attributable to common stockholders	(277,000,000)
Other comprehensive income:
Foreign currency translation adjustment—net of taxes	(74,000,000)	(74,000,000)	0	0	0	0	(74,000,000)
Unrealized net loss on hedging derivatives—net of taxes	0
Defined benefit plans—net of taxes	(74,000,000)	(74,000,000)	0	0	0	0	(74,000,000)	0
Comprehensive income (loss)	(306,000,000)	(425,000,000)						119,000,000
Retirement of treasury stock	0	0	0	150,000,000	(14,000,000)	(136,000,000)	0	0
Acquisition of treasury stock under employee stock plans	(1,000,000)	(1,000,000)	0	(1,000,000)	0	0	0	0
Issuance of $0.01 par value common stock under employee stock plans	0	0	0	3,000,000	(3,000,000)	0	0	0
Stock-based compensation expense	19,000,000	19,000,000	0	0	19,000,000	0	0	0
Cash dividends	(280,000,000)	(280,000,000)	0	0	0	(280,000,000)	0	0
Issuance of noncontrolling interest in CF Industries Nitrogen, LLC (CFN)	2,792,000,000	0	0	0	0	0	0	2,792,000,000
Distributions declared to noncontrolling interest	(119,000,000)	0	0	0	0	0	0	(119,000,000)
Minority Interest Distributions to Noncontrolling Interest Holders								119,000,000
Ending balance at Dec. 31, 2016	6,492,000,000	3,348,000,000	2,000,000	(1,000,000)	1,380,000,000	2,365,000,000	(398,000,000)	3,144,000,000
Increase (decrease) in equity
Net earnings	450,000,000	358,000,000	0	0	0		0	92,000,000
Net earnings (loss) attributable to common stockholders	358,000,000
Other comprehensive income:
Foreign currency translation adjustment—net of taxes	127,000,000	127,000,000	0	0	0	0	127,000,000	0
Unrealized net loss on hedging derivatives—net of taxes	(1,000,000)	(1,000,000)	0	0	0	0	(1,000,000)	0
Defined benefit plans—net of taxes	9,000,000	9,000,000	0	0	0	0	9,000,000	0
Comprehensive income (loss)	585,000,000	493,000,000						92,000,000
Issuance of $0.01 par value common stock under employee stock plans	1,000,000	1,000,000	0	1,000,000	0	0	0	0
Stock-based compensation expense	17,000,000	17,000,000	0	0	17,000,000	0	0	0
Cash dividends	(280,000,000)	(280,000,000)	0	0	0	(280,000,000)	0	0
Distributions declared to noncontrolling interest	(131,000,000)	0	0	0	0	0	0
Minority Interest Distributions to Noncontrolling Interest Holders								131,000,000
Ending balance at Dec. 31, 2017	$ 6,684,000,000	$ 3,579,000,000	$ 2,000,000	$ 0	$ 1,397,000,000	$ 2,443,000,000	$ (263,000,000)	$ 3,105,000,000

CONSOLIDATED STATEMENTS OF EQU7

CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Statement of Stockholders' Equity [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Cash dividends (in dollars per share)	$ 1.2	$ 1.2

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities:
Net earnings (loss)	$ 450	$ (158)	$ 734
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization	883	678	480
Deferred income taxes	(601)	739	78
Stock-based compensation expense	17	19	17
Unrealized net loss (gain) on natural gas and foreign currency derivatives	61	(260)	163
Loss on Embedded Derivative Instrument	4	23	0
Gain on remeasurement of CF Fertilisers UK investment	0	0	(94)
Impairment of equity method investment in PLNL	0	134	62
Gain on sale of equity method investment	(14)	0	43
Loss on debt extinguishment	53	167	0
Loss on disposal of property, plant and equipment	3	10	21
Undistributed losses (earnings) of affiliates—net of taxes	3	9	(3)
Changes in:
Accounts receivable—net	(57)	18	(4)
Inventories	40	(7)	(71)
Accrued and prepaid income taxes	809	(676)	(148)
Accounts payable and accrued expenses	(1)	(18)	42
Customer advances	48	(120)	(164)
Other—net	(67)	59	51
Net cash provided by operating activities	1,631	617	1,207
Investing Activities:
Additions to property, plant and equipment	(473)	(2,211)	(2,469)
Proceeds from sale of property, plant and equipment	20	14	12
Proceeds from sale of equity method investment	16	0	13
Purchase of CF Fertilisers UK, net of cash acquired	0	0	(552)
Proceeds from sale of auction rate securities	9	0	0
Deposits to restricted cash funds			(552)
Withdrawals from restricted cash funds	5	18	63
Other—net	1	2	(43)
Net cash used in investing activities	(408)	(2,177)	(2,976)
Financing Activities:
Proceeds from long-term borrowings	0	1,244	1,000
Payments of long-term borrowings	(1,148)	(1,170)	0
Proceeds from short-term borrowings	0	150	367
Payments of short-term borrowings	0	(150)	(367)
Payment to CHS related to credit provision	(5)	(5)	0
Financing fees	(1)	(31)	(47)
Purchases of treasury stock	0	0	(556)
Dividends paid on common stock	(280)	(280)	(282)
Issuance of noncontrolling interest in CFN	0	2,800	0
Distributions to noncontrolling interests	(131)	(119)	(45)
Issuances of common stock under employee stock plans	1	0	8
Shares withheld for taxes	0	0	(1)
Other—net		0	0
Net cash (used in) provided by financing activities	(1,564)	2,439	77
Effect of exchange rate changes on cash and cash equivalents	12	(1)	(19)
(Decrease) increase in cash and cash equivalents	(329)	878	(1,711)
Cash and cash equivalents at beginning of period	1,164	286	1,997
Cash and cash equivalents at end of period	835	1,164	286
Distributions received from unconsolidated affiliates	$ 14	$ 0	$ 0

Background and Basis of Present

Background and Basis of Presentation	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Background and Basis of Presentation	Background and Basis of Presentation We are one of the largest manufacturers and distributors of nitrogen fertilizer and other nitrogen products in the world. Our principal customers are cooperatives, independent fertilizer distributors, farmers and industrial users. Our principal nitrogen fertilizer products are ammonia, granular urea, urea ammonium nitrate solution (UAN) and ammonium nitrate (AN). Our other nitrogen products include diesel exhaust fluid (DEF), urea liquor, nitric acid and aqua ammonia, which are sold primarily to our industrial customers, and compound fertilizer products (NPKs), which are solid granular fertilizer products for which the nutrient content is a combination of nitrogen, phosphorus and potassium. We operate world-class nitrogen manufacturing complexes in the United States, Canada and the United Kingdom, and distribute plant nutrients through a system of terminals, warehouses, and associated transportation equipment located primarily in the Midwestern United States. We also export nitrogen fertilizer products from our Donaldsonville, Louisiana and Yazoo City, Mississippi manufacturing facilities and our United Kingdom manufacturing facilities in Billingham and Ince. All references to "CF Holdings," "the Company," "we," "us" and "our" refer to CF Industries Holdings, Inc. and its subsidiaries, except where the context makes clear that the reference is only to CF Industries Holdings, Inc. itself and not its subsidiaries. All references to "CF Industries" refer to CF Industries, Inc., a 100% owned subsidiary of CF Industries Holdings, Inc. Our principal assets include: • four U.S. nitrogen fertilizer manufacturing facilities located in: Donaldsonville, Louisiana; Port Neal, Iowa; Yazoo City, Mississippi; and Woodward, Oklahoma. These facilities are owned by CF Industries Nitrogen, LLC (CFN), of which we own approximately 89% and CHS Inc. (CHS), owns the remainder. See Note 16—Noncontrolling Interests for additional information on our strategic venture with CHS; • an approximately 75.3% interest in Terra Nitrogen Company, L.P. (TNCLP), a publicly traded limited partnership of which we are the sole general partner and the majority limited partner and which, through its subsidiary Terra Nitrogen, Limited Partnership (TNLP), operates a nitrogen fertilizer manufacturing facility in Verdigris, Oklahoma; • two Canadian nitrogen fertilizer manufacturing facilities, located in Medicine Hat, Alberta and Courtright, Ontario; • two United Kingdom nitrogen manufacturing complexes, located in Billingham and Ince; • an extensive system of terminals and associated transportation equipment located primarily in the Midwestern United States; and • a 50% interest in Point Lisas Nitrogen Limited (PLNL), an ammonia production joint venture located in the Republic of Trinidad and Tobago that we account for under the equity method. On February 7, 2018, we announced that Terra Nitrogen GP Inc. (TNGP), the sole general partner of TNCLP and an indirect wholly owned subsidiary of CF Holdings, elected to exercise its right to purchase all of the 4,612,562 publicly traded common units of TNCLP on April 2, 2018, for a cash purchase price of $84.033 per unit in accordance with the terms of TNCLP’s partnership agreement. See Note 26—Subsequent Event for additional information.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Consolidation and Noncontrolling Interests The consolidated financial statements of CF Holdings include the accounts of CF Industries and all majority-owned subsidiaries. All significant intercompany transactions and balances have been eliminated. TNCLP is a master limited partnership that is consolidated in the financial statements of CF Holdings. TNCLP owns the nitrogen fertilizer manufacturing facility in Verdigris, Oklahoma. We own approximately 75.3% of TNCLP and outside investors own the remaining approximately 24.7% . Partnership interests in TNCLP are traded on the New York Stock Exchange (NYSE). As a result, TNCLP files separate financial reports with the Securities and Exchange Commission (SEC). The outside investors' limited partnership interests in the partnership are included in noncontrolling interests in our consolidated financial statements. This noncontrolling interest represents the noncontrolling unitholders' interest in the partners' capital of TNCLP. On February 7, 2018, we announced that TNGP elected to exercise its right to purchase all of the 4,612,562 publicly traded common units of TNCLP on April 2, 2018, for a cash purchase price of $84.033 per unit in accordance with the terms of TNCLP’s partnership agreement. See Note 26—Subsequent Event for additional information. On February 1, 2016, CHS purchased a minority equity interest in CFN. We own approximately 89% of CFN and consolidate CFN in our financial statements. CHS' minority equity interest in CFN is included in noncontrolling interests in our consolidated financial statements, and represents CHS' interest in the membership interests of CFN. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States (U.S. GAAP) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses for the periods presented. Significant estimates and assumptions are used for, but are not limited to, net realizable value of inventories, environmental remediation liabilities, environmental and litigation contingencies, the cost of customer incentives, useful lives of property and identifiable intangible assets, the assumptions used in the evaluation of potential impairments of property, investments, identifiable intangible assets and goodwill, income tax and valuation reserves, allowances for doubtful accounts receivable, the measurement of the fair values of investments for which markets are not active, assumptions used in the determination of the funded status and annual expense of defined benefit pension and other postretirement plans, the assumptions used to determine the relative fair values of new reportable segments and the assumptions used in the valuation of stock-based compensation awards granted to employees. Revenue Recognition The basic criteria necessary for revenue recognition are: (1) evidence that a sales arrangement exists, (2) delivery of goods has occurred, (3) the seller's price to the buyer is fixed or determinable, and (4) collectability is reasonably assured. We recognize revenue when these criteria have been met and when title and risk of loss transfers to the customer, which can be at the plant gate, a distribution facility, a supplier location or a customer destination. Revenue from forward sales programs is recognized on the same basis as other sales (when title and risk of loss transfers to the customer) regardless of when the customer advances are received. We offer certain incentives that typically involve rebates if a customer reaches a specified level of purchases. Customer incentives are accrued monthly and reported as a reduction in net sales. This process is intended to report sales at the ultimate net realized price and requires the use of estimates. Shipping and handling fees billed to customers are reported in revenue. Shipping and handling costs incurred by us are included in cost of sales. Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments that are readily convertible to known amounts of cash with original maturities of three months or less. The carrying value of cash and cash equivalents approximates fair value. Investments Short-term investments and noncurrent investments are accounted for primarily as available-for-sale securities reported at fair value with changes in fair value reported in other comprehensive income unless fair value is below amortized cost (i.e., the investment is impaired) and the impairment is deemed other-than-temporary, in which case, some or all of the decline in value would be charged to earnings. The carrying values of short-term investments approximate fair values because of the short maturities and the highly liquid nature of these investments. Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable includes trade receivables and non-trade receivables. Accounts receivable are recorded at face amounts less an allowance for doubtful accounts. The allowance is an estimate based on historical collection experience, current economic and market conditions, and a review of the current status of each customer's trade accounts receivable. A receivable is past due if payments have not been received within the agreed-upon invoice terms. Account balances are charged-off against the allowance when management determines that it is probable that the receivable will not be recovered. Inventories Inventories are reported at the lower of cost and net realizable value with cost determined on a first-in, first-out (FIFO) and average cost basis. Inventory includes the cost of materials, production labor and production overhead. Inventory at warehouses and terminals also includes distribution costs to move inventory to the distribution facilities. Net realizable value is reviewed at least quarterly. Fixed production costs related to idle capacity are not included in the cost of inventory but are charged directly to cost of sales in the period incurred. Investment in Unconsolidated Affiliate The equity method of accounting is used for investments in affiliates that we do not consolidate, but over which we have the ability to exercise significant influence. Our equity method investment for which the results are included in operating earnings consists of our 50% ownership interest in PLNL, which operates an ammonia production facility in the Republic of Trinidad and Tobago. Our share of the net earnings from this investment is reported as an element of earnings from operations because PLNL's operations provide additional production and are integrated with our supply chain and sales activities in the ammonia segment. See Note 7—Equity Method Investments for additional information. Profits resulting from sales or purchases with equity method investees are eliminated until realized by the investee or investor, respectively. Investments in affiliates are reviewed for impairment whenever events or circumstances indicate that the carrying value may not be recoverable. When circumstances indicate that the fair value of an investment in an affiliate is less than its carrying value, and the reduction in value is other than temporary, the reduction in value is recognized immediately in earnings. Property, Plant and Equipment Property, plant and equipment are stated at cost. Depreciation and amortization are computed using the straight-line method or the units-of-production (UOP) method and are recorded over the estimated useful life of the property, plant and equipment. Useful lives are as follows: Years Mobile and office equipment 3 to 10 Production facilities and related assets 2 to 30 Land improvements 10 to 30 Buildings 10 to 40 We periodically review the useful lives assigned to our property, plant and equipment, as well as estimated production capacities used to develop UOP depreciation expense, and we change the estimates to reflect the results of those reviews. Scheduled inspections, replacements and overhauls of plant machinery and equipment at our continuous process manufacturing facilities during a full plant shutdown are referred to as plant turnarounds. Plant turnarounds are accounted for under the deferral method, as opposed to the direct expense or built-in overhaul methods. Under the deferral method, expenditures related to turnarounds are capitalized in property, plant and equipment when incurred and amortized to production costs on a straight-line basis over the period benefited, which is until the next scheduled turnaround in up to five years. If the direct expense method were used, all turnaround costs would be expensed as incurred. Internal employee costs and overhead amounts are not considered turnaround costs and are not capitalized. Turnaround costs are classified as investing activities in the consolidated statements of cash flows. See Note 5—Property, Plant and Equipment—Net for additional information. Recoverability of Long-Lived Assets We review property, plant and equipment and other long-lived assets in order to assess recoverability based on expected future undiscounted cash flows whenever events or circumstances indicate that the carrying value may not be recoverable. If the sum of the expected future net cash flows is less than the carrying value, an impairment loss is recognized. The impairment loss is measured as the amount by which the carrying value exceeds the fair value of the asset. Goodwill and Other Intangible Assets Goodwill represents the excess of the purchase price of an acquired entity over the amounts assigned to the assets acquired and liabilities assumed. Goodwill is not amortized, but is reviewed for impairment annually or more frequently if certain impairment conditions arise. We perform our annual goodwill impairment review in the fourth quarter of each year at the reporting unit level. Our evaluation can begin with a qualitative assessment of the factors that could impact the significant inputs used to estimate fair value. If after performing the qualitative assessment, we determine that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill, then no further testing is performed. However, if it is unclear based on the results of the qualitative test, we perform a quantitative test involving potentially two steps. The first step compares the fair value of a reporting unit with its carrying amount, including goodwill. We use an income-based valuation method, determining the present value of future cash flows, to estimate the fair value of a reporting unit. If the fair value of a reporting unit exceeds its positive carrying amount, goodwill of the reporting unit is considered not impaired, and the second step of the impairment test is unnecessary. The second step of the goodwill impairment test, if needed, compares the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. We recognize an impairment loss immediately to the extent the carrying value exceeds its implied fair value. Our intangible assets are presented in other assets on our consolidated balance sheets. See Note 6—Goodwill and Other Intangible Assets for additional information regarding our goodwill and other intangible assets. Leases Leases may be classified as either operating leases or capital leases. Assets acquired under capital leases, if any, would be depreciated on the same basis as property, plant and equipment. For operating leases, rental payments, including rent holidays, leasehold incentives, and scheduled rent increases are expensed on a straight-line basis. Leasehold improvements are amortized over the shorter of the depreciable lives of the corresponding fixed assets or the lease term including any applicable renewals. Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those differences are projected to be recovered or settled. Realization of deferred tax assets is dependent on our ability to generate sufficient taxable income of an appropriate character in future periods. A valuation allowance is established if it is determined to be more likely than not that a deferred tax asset will not be realized. Significant judgment is applied in evaluating the need for and magnitude of appropriate valuation allowances against deferred tax assets. Interest and penalties related to unrecognized tax benefits are reported as interest expense and income tax expense, respectively. Historically, a deferred income tax liability was recorded for income taxes that would result from the repatriation of the portion of the investment in the Company's non-U.S. subsidiaries and joint venture that were considered to not be permanently reinvested. No deferred income tax liability was recorded for the remainder of our investment in non-U.S. subsidiaries and joint venture, which we believed to be permanently reinvested. Customer Advances Customer advances represent cash received from customers following acceptance of orders under our forward sales programs. Such advances typically represent a significant portion of the contract's sales value and are generally collected by the time the product is shipped, thereby reducing or eliminating accounts receivable from customers upon shipment. Revenue is recognized when title and risk of loss transfers upon shipment or delivery of the product to customers. Derivative Financial Instruments Natural gas is the principal raw material used to produce nitrogen fertilizers. We manage the risk of changes in natural gas prices primarily through the use of derivative financial instruments. The derivative instruments that we use are primarily fixed price swaps and options traded in the over-the-counter (OTC) markets. The derivatives reference primarily NYMEX futures contract prices, which represent the basis for fair value at any given time. These derivatives are traded in months forward and settlements are scheduled to coincide with anticipated gas purchases during those future periods. In order to manage our exposure to changes in foreign currency exchange rates related to our capacity expansion projects, we used foreign currency derivatives, primarily forward exchange contracts. All of these foreign currency derivatives settled in 2016. The accounting for the change in the fair value of a derivative instrument depends on whether the instrument has been designated as a hedging instrument and whether the instrument is effective as part of a hedging relationship. Changes in the fair value of derivatives not designated as hedging instruments and the ineffective portion of derivatives designated as cash flow hedges are recorded in the consolidated statements of operations as the changes occur. Changes in the fair value of derivatives designated as cash flow hedging instruments considered effective are recorded in accumulated other comprehensive income (AOCI) as the changes occur, and are reclassified into income or expense as the hedged item is recognized in earnings. Derivative financial instruments are accounted for at fair value and recognized as current or noncurrent assets and liabilities on our consolidated balance sheets. The fair values of derivative instruments and any related cash collateral are reported on a gross basis rather than on a net basis. Cash flows related to natural gas derivatives are reported as operating activities. Cash flows related to foreign currency derivatives were reported as investing activities since they hedged future payments for the construction of long-term assets. We do not use derivatives for trading purposes and are not a party to any leveraged derivatives. See Note 14—Derivative Financial Instruments for additional information. Debt Issuance Costs Costs associated with the issuance of debt are recorded on the balance sheet as a direct deduction from the carrying amount of the related debt liability. Costs associated with entering into revolving credit facilities are recorded as an asset in noncurrent assets. All debt issuance costs are amortized over the term of the related debt. Debt issuance discounts are netted against the related debt and are amortized over the term of the debt using the effective interest method. See Note 11—Financing Agreements for additional information. Environmental Environmental expenditures that relate to current operations are expensed or capitalized as appropriate. Expenditures that relate to an existing condition caused by past operations are expensed. Expenditures that increase the capacity or extend the useful life of an asset, improve the safety or efficiency of the operations, or mitigate or prevent future environmental contamination are capitalized. Liabilities are recorded when it is probable that an obligation has been incurred, the costs can be reasonably estimated, and the liability would not be discounted. Stock-based Compensation We grant stock-based compensation awards under our equity and incentive plans. The awards that have been granted to date are nonqualified stock options, restricted stock awards, restricted stock units and performance share units. The cost of employee services received in exchange for the awards is measured based on the fair value of the award on the grant date and is recognized as expense on a straight-line basis over the period during which the employee is required to provide the services. See Note 18—Stock-Based Compensation for additional information. Treasury Stock We periodically retire treasury shares acquired through repurchases of our common stock and return those shares to the status of authorized but unissued. We account for treasury stock transactions under the cost method. For each reacquisition of common stock, the number of shares and the acquisition price for those shares is added to the treasury stock count and total value. When treasury shares are retired, we allocate the excess of the repurchase price over the par value of shares acquired to both retained earnings and paid-in capital. The portion allocated to paid-in capital is determined by applying the average paid-in capital per share, and the remaining portion is recorded to retained earnings. Litigation From time to time, we are subject to ordinary, routine legal proceedings related to the usual conduct of our business. We may also be involved in proceedings regarding public utility and transportation rates, environmental matters, taxes and permits relating to the operations of our various plants and facilities. Accruals for such contingencies are recorded to the extent management concludes their occurrence is probable and the financial impact of an adverse outcome is reasonably estimable. Legal fees are recognized as incurred and are not included in accruals for contingencies. Disclosure for specific legal contingencies is provided if the likelihood of occurrence is at least reasonably possible and the exposure is considered material to the consolidated financial statements. In making determinations of likely outcomes of litigation matters, many factors are considered. These factors include, but are not limited to, past history, scientific and other evidence, and the specifics and status of each matter. If the assessment of various factors changes, the estimates may change. Predicting the outcome of claims and litigation, and estimating related costs and exposure involves substantial uncertainties that could cause actual costs to vary materially from estimates and accruals. Foreign Currency Translation We translate the financial statements of our foreign subsidiaries with non-U.S. dollar functional currencies using period-end exchange rates for assets and liabilities and weighted-average exchange rates for each period for revenues and expenses. The resulting translation adjustments are recorded as a separate component of AOCI within stockholders' equity. Foreign currency-denominated assets and liabilities are remeasured into U.S. dollars at exchange rates existing at the respective balance sheet dates. Gains and losses resulting from these foreign currency transactions are included in other operating—net on our consolidated statements of operations. Gains and losses resulting from intercompany foreign currency transactions that are of a long-term investment nature, if any, are reported in other comprehensive income.

New Accounting Standards

New Accounting Standards	12 Months Ended
	Dec. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Standards	New Accounting Standards Recently Adopted Pronouncements On January 1, 2017, we adopted Accounting Standards Update (ASU) No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory. ASU No. 2015-11 changes the inventory measurement principle for entities using the FIFO or average cost methods. For entities utilizing one of these methods, the inventory measurement principle changed from lower of cost or market to the lower of cost and net realizable value. We follow the FIFO or average cost methods and the adoption of ASU No. 2015-11 did not have a material impact on our consolidated financial statements. Recently Issued Pronouncements In May 2014, the Financial Accounting Standards Board (FASB) issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in Accounting Standards Codification (ASC) Topic 605, Revenue Recognition. This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments. Additionally, the costs to obtain and fulfill a contract, including assets to be recognized, are to be capitalized and amortized and such capitalized costs should be disclosed. In 2016, the FASB issued additional ASUs that enhance the operability of the principal versus agent guidance in ASU No. 2014-09 by clarifying that an entity should consider the nature of each good or service promised to a customer at the individual good or service level, clarify that ASU No. 2014-09 should not be applied to immaterial performance obligations, and enhance the guidance around the treatment of shipping costs incurred to fulfill performance obligations. We adopted ASU No. 2014-09 on January 1, 2018 using the modified retrospective approach. While we will provide expanded disclosures as a result of ASU No. 2014-09, the adoption of this ASU did not have a material impact on our consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which supersedes the lease accounting requirements in ASC Topic 840, Leases. This ASU will require lessees to recognize the rights and obligations resulting from virtually all leases (other than leases that meet the definition of a short-term lease) on their balance sheets as right-of-use assets with corresponding lease liabilities. Extensive quantitative and qualitative disclosures, including significant judgments made by management, will be required to provide greater insight into the extent of income and expense recognized and expected to be recognized from existing contracts. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted, and requires the modified retrospective method of adoption. While we are continuing to evaluate the impact of the adoption of this ASU on our consolidated financial statements, we currently believe the most significant change relates to the recognition of new right-of-use assets and lease liabilities on our balance sheet for operating leases for certain property and equipment, including rail car leases and barge tow charters that are utilized for the distribution of our products. See Note 23—Leases for additional information. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amendments are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, and should be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. We adopted ASU No. 2016-16 on January 1, 2018. The adoption of ASU No. 2016-16 did not have a material impact on our consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which will change the presentation of net benefit cost related to employer sponsored defined benefit plans and other postretirement benefits. Service cost will be included within the same income statement line item as other compensation costs arising from services rendered during the period, while other components of net benefit cost will be presented separately outside of operating income. Additionally, only service costs may be capitalized on the balance sheet. This ASU is effective for annual and interim periods beginning after December 15, 2017. On January 1, 2018, we adopted ASU No. 2017-07 retrospectively for the income statement classification requirements and prospectively for the capitalization guidance. The adoption of ASU No. 2017-07 did not have a material impact on our consolidated financial statements. In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, which improves the financial reporting of hedging relationships in order to better portray the economic results of an entity's risk management activities in its financial statements. The amendments are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, and should be applied to existing hedging relationships as of the date of adoption. We do not expect the adoption of this ASU will have a material effect on our consolidated financial statements. In February 2018, the FASB issued ASU No. 2018-2, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This ASU allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The amendments in this ASU are effective for fiscal years beginning after December 15, 2018 and for interim periods therein. Early adoption of this ASU is permitted. We do not expect the adoption of this ASU will have a material effect on our consolidated financial statements. See Note 9—Income Taxes for additional information.

Net Earnings Per Share

Net Earnings Per Share	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Net Earnings Per Share	Net Earnings (Loss) Per Share Net earnings (loss) per share were computed as follows: Year ended December 31, 2017 2016 2015 (in millions, except per share amounts) Net earnings (loss) attributable to common stockholders $ 358 $ (277 ) $ 700 Basic earnings per common share: Weighted-average common shares outstanding 233.5 233.1 235.3 Net earnings (loss) attributable to common stockholders $ 1.53 $ (1.19 ) $ 2.97 Diluted earnings per common share: Weighted-average common shares outstanding 233.5 233.1 235.3 Dilutive common shares—stock options 0.4 — 0.8 Diluted weighted-average shares outstanding 233.9 233.1 236.1 Net earnings (loss) attributable to common stockholders $ 1.53 $ (1.19 ) $ 2.96 In the computation of diluted earnings per common share, potentially dilutive stock options are excluded if the effect of their inclusion is anti-dilutive. Shares for anti-dilutive stock options not included in the computation of diluted earnings per common share were 3.7 million , 4.9 million and 1.6 million for the years ended December 31, 2017 , 2016 and 2015 , respectively.

Property, Plant and Equipment-N

Property, Plant and Equipment-Net	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment, Net [Abstract]
Property, Plant and Equipment-Net	Property, Plant and Equipment—Net Property, plant and equipment—net consists of the following: December 31, 2017 2016 (in millions) Land $ 71 $ 69 Machinery and equipment 12,070 11,664 Buildings and improvements 882 878 Construction in progress 223 280 Property, plant and equipment (1) 13,246 12,891 Less: Accumulated depreciation and amortization 4,071 3,239 Property, plant and equipment—net $ 9,175 $ 9,652 _______________________________________________________________________________ (1) As of December 31, 2017 and 2016 , we had property, plant and equipment that was accrued but unpaid of approximately $46 million and $225 million , respectively. These amounts included accruals related to our capacity expansion projects of $185 million as of December 31, 2016 . Depreciation and amortization related to property, plant and equipment was $848 million , $607 million and $444 million in 2017 , 2016 and 2015 , respectively. Plant turnarounds —Scheduled inspections, replacements and overhauls of plant machinery and equipment at our continuous process manufacturing facilities during a full plant shutdown are referred to as plant turnarounds. The expenditures related to turnarounds are capitalized in property, plant and equipment when incurred. The following is a summary of capitalized plant turnaround costs: Year ended December 31, 2017 2016 2015 (in millions) Net capitalized turnaround costs at beginning of the year $ 206 $ 220 $ 153 Additions 100 74 135 Depreciation (102 ) (89 ) (65 ) Effect of exchange rate changes 4 1 (3 ) Net capitalized turnaround costs at end of the year $ 208 $ 206 $ 220 Scheduled replacements and overhauls of plant machinery and equipment include the dismantling, repair or replacement and installation of various components including piping, valves, motors, turbines, pumps, compressors, heat exchangers and the replacement of catalysts when a full plant shutdown occurs. Scheduled inspections are also conducted during full plant shutdowns, including required safety inspections which entail the disassembly of various components such as steam boilers, pressure vessels and other equipment requiring safety certifications. Internal employee costs and overhead amounts are not considered turnaround costs and are not capitalized.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The following table shows the carrying amount of goodwill by reportable segment as of December 31, 2017 and 2016 : Ammonia Granular Urea UAN AN Other Total (in millions) Balance as of December 31, 2016 $ 585 $ 828 $ 576 $ 286 $ 70 $ 2,345 Effect of exchange rate changes 2 1 — 20 3 26 Balance as of December 31, 2017 $ 587 $ 829 $ 576 $ 306 $ 73 $ 2,371 All of our identifiable intangible assets have definite lives and are presented in other assets on our consolidated balance sheets at gross carrying amount, net of accumulated amortization, as follows: December 31, 2017 December 31, 2016 Gross Accumulated Net Gross Accumulated Net (in millions) Intangible assets: Customer relationships $ 132 $ (31 ) $ 101 $ 125 $ (24 ) $ 101 TerraCair brand 10 (10 ) — 10 (10 ) — Trade names 32 (4 ) 28 29 (2 ) 27 Total intangible assets $ 174 $ (45 ) $ 129 $ 164 $ (36 ) $ 128 Amortization expense of our identifiable intangibles was $9 million , $7 million and $10 million for the years ended December 31, 2017 , 2016 and 2015 , respectively. Our intangible assets are being amortized over a weighted-average life of approximately 20 years. Total estimated amortization expense for each of the five succeeding fiscal years is as follows: Estimated (in millions) 2018 $ 8 2019 8 2020 8 2021 8 2022 8

Equity Method Investments

Equity Method Investments	12 Months Ended
	Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Equity Method Investments Operating Equity Method Investment We have a 50% ownership interest in PLNL, which operates an ammonia production facility in the Republic of Trinidad and Tobago. We include our share of the net earnings from this equity method investment as an element of earnings from operations because PLNL provides additional production to our operations and is integrated with our other supply chain and sales activities in the ammonia segment. As of December 31, 2017 , the total carrying value of our equity method investment in PLNL of approximately $108 million was $55 million more than our share of PLNL's book value. The excess is attributable to the purchase accounting impact of our acquisition of the investment in PLNL and primarily reflects the revaluation of property, plant and equipment and the value of an exclusive natural gas contract. The increased basis for property, plant and equipment and the gas contract are being amortized over a remaining period of approximately 15 years and 3 months, respectively. Our equity in earnings of PLNL is different from our ownership interest in income reported by PLNL due to amortization of these basis differences. We have transactions in the normal course of business with PLNL reflecting our obligation to purchase 50% of the ammonia produced by PLNL at current market prices. Our ammonia purchases from PLNL totaled $76 million , $62 million and $121 million in 2017 , 2016 and 2015 , respectively. PLNL operates an ammonia plant that relies on natural gas supplied, under a Gas Sales Contract (the NGC Contract), by The National Gas Company of Trinidad and Tobago Limited (NGC). PLNL has experienced curtailments in the supply of natural gas from NGC, which have reduced the ammonia production at PLNL. The NGC Contract had an initial expiration date of September 2018 and has been extended on the same terms until September 2023. Any NGC commitment to supply gas beyond 2023 will need to be based on new agreements regarding volume and price. PLNL and NGC are currently parties to arbitration proceedings where the main issue remaining in dispute is PLNL's claims for damages from the supply curtailments. Although PLNL believes its claims against NGC to be meritorious, it is not possible to predict the outcome of the arbitration. There are significant assumptions in the future operations of the joint venture, beyond 2023, that are uncertain at this time, including the quantities of gas that NGC will make available, the cost of such gas, the estimates that are used to determine the useful lives of fixed assets and the assumptions in the discounted cash flow models utilized for recoverability and impairment testing. As part of our impairment assessment of our equity method investment in PLNL during the fourth quarters of 2016 and 2015, we determined the carrying value exceeded the fair value and recognized a $134 million and $62 million impairment charge in 2016 and 2015, respectively. The carrying value of our equity method investment in PLNL at December 31, 2017 is $108 million . If NGC does not make sufficient quantities of natural gas available to PLNL at prices that permit profitable operations, PLNL may cease operating its facility and we would write off the remaining investment in PLNL. The Trinidad tax authority (the Board of Inland Revenue) has issued a tax assessment against PLNL related to a dispute over whether tax depreciation must be claimed during a tax holiday period that was granted to PLNL under the Trinidad Fiscal Incentives Act. The tax holiday was granted as an incentive to construct PLNL’s ammonia plant. Based on the facts and circumstances of this matter, PLNL recorded a tax contingency accrual in the second quarter of 2017, which reduced our equity in earnings of PLNL for 2017 by approximately $7 million reflecting our 50% ownership interest. In early 2018, PLNL settled this matter with the Board of Inland Revenue for the amounts accrued. In the fourth quarter of 2017, we sold our interest in a joint venture that owns a carbon dioxide liquefaction and purification facility and recognized a gain of $14 million , which is included in equity in earnings (losses) of operating affiliates in our consolidated statements of operations. Non-Operating Equity Method Investments We no longer have non-operating equity method investments as a result of the sale of our 50% ownership interest in KEYTRADE AG (Keytrade) during the second quarter of 2015 and our July 31, 2015 acquisition of the remaining 50% equity interest in CF Fertilisers UK not previously owned by us for total consideration of $570 million . As a result of the acquisition, CF Fertilisers UK became a wholly owned subsidiary. The financial results of CF Fertilisers UK have been consolidated within our financial results since July 31, 2015. Equity in earnings of non-operating affiliates—net of taxes for the year ended December 31, 2015 of $72 million includes our after-tax gain of $94 million on remeasurement to fair value of our initial 50% equity interest in CF Fertilisers UK, the after-tax loss of $29 million on the sale of our interests in Keytrade, and our equity in earnings (losses) of Keytrade, through the date of sale, and of CF Fertilisers UK, through the acquisition date.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Our cash and cash equivalents and other investments consist of the following: December 31, 2017 Cost Basis Unrealized Unrealized Fair Value (in millions) Cash $ 120 $ — $ — $ 120 Cash equivalents: U.S. and Canadian government obligations 710 — — 710 Other debt securities 5 — — 5 Total cash and cash equivalents $ 835 $ — $ — $ 835 Nonqualified employee benefit trusts 17 2 — 19 December 31, 2016 Cost Basis Unrealized Unrealized Fair Value (in millions) Cash $ 89 $ — $ — $ 89 Cash equivalents: U.S. and Canadian government obligations 1,075 — — 1,075 Total cash and cash equivalents $ 1,164 $ — $ — $ 1,164 Restricted cash 5 — — 5 Nonqualified employee benefit trusts 18 1 — 19 Under our short-term investment policy, we may invest our cash balances, either directly or through mutual funds, in several types of investment-grade securities, including notes and bonds issued by governmental entities or corporations. Securities issued by governmental entities include those issued directly by the U.S. and Canadian federal governments; those issued by state, local or other governmental entities; and those guaranteed by entities affiliated with governmental entities. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following tables present assets and liabilities included in our consolidated balance sheets as of December 31, 2017 and 2016 that are recognized at fair value on a recurring basis, and indicate the fair value hierarchy utilized to determine such fair value: December 31, 2017 Total Fair Value Quoted Prices Significant Significant (in millions) Cash equivalents $ 715 $ 715 $ — $ — Nonqualified employee benefit trusts 19 19 — — Derivative assets 1 — 1 — Derivative liabilities (12 ) — (12 ) — Embedded derivative liability (25 ) — (25 ) — December 31, 2016 Total Fair Value Quoted Prices Significant Significant (in millions) Cash equivalents $ 1,075 $ 1,075 $ — $ — Restricted cash 5 5 — — Nonqualified employee benefit trusts 19 19 — — Derivative assets 56 — 56 — Derivative liabilities (6 ) — (6 ) — Embedded derivative liability (26 ) — (26 ) — Cash Equivalents As of December 31, 2017 and 2016 , our cash equivalents consisted primarily of U.S. and Canadian government obligations and money market mutual funds that invest in U.S. government obligations and other investment-grade securities. Restricted Cash We maintained a cash account for which the use of the funds was restricted. The restricted cash account was put in place to satisfy certain requirements included in our engineering and procurement services contract for our capacity expansion projects. Under the terms of this contract, we were required to grant an affiliate of ThyssenKrupp Industrial Solutions a security interest in a restricted cash account. During 2017, the remaining balance in our restricted cash account was returned to us and the account was closed. Nonqualified Employee Benefit Trusts We maintain trusts associated with certain nonqualified supplemental pension plans. The investments are accounted for as available-for-sale securities. The fair values of the trust assets are based on daily quoted prices in an active market, which represents the net asset values of the shares held in the trusts. These trusts are included on our consolidated balance sheets in other assets. Derivative Instruments The derivative instruments that we use are primarily natural gas fixed price swaps and natural gas options traded in the over-the-counter (OTC) markets with multi-national commercial banks, other major financial institutions or large energy companies. The natural gas derivative contracts represent anticipated natural gas needs for future periods and settlements are scheduled to coincide with anticipated natural gas purchases during those future periods. The natural gas derivative contracts settle using primarily NYMEX futures prices. To determine the fair value of these instruments, we use quoted market prices from NYMEX and standard pricing models with inputs derived from or corroborated by observable market data such as forward curves supplied by an industry-recognized independent third party. See Note 14—Derivative Financial Instruments for additional information. Embedded Derivative Liability Under the terms of our strategic venture with CHS, if our credit rating as determined by two of three specified credit rating agencies is below certain levels, we are required to make a non-refundable yearly payment of $5 million to CHS. Since our credit ratings were below certain levels in 2016 and 2017, we made a payment of $5 million to CHS in each year. These payments will continue on a yearly basis until the earlier of the date that our credit rating is upgraded to or above certain levels by two of the three specified credit rating agencies or February 1, 2026. This obligation is recognized on our consolidated balance sheets as an embedded derivative. As of December 31, 2017 and 2016 , the embedded derivative liability of $25 million and $26 million , respectively, is included in other current liabilities and other liabilities on our consolidated balance sheets. The inputs into the fair value measurement include the probability of future upgrades and downgrades of our credit rating based on historical credit rating movements of other public companies and the discount rates to be applied to potential annual payments based on applicable credit spreads of other public companies at different credit rating levels. Based on these inputs, our fair value measurement is classified as Level 2. See Note 16—Noncontrolling Interests for additional information regarding our strategic venture with CHS. Financial Instruments The carrying amounts and estimated fair value of our financial instruments are as follows: December 31, 2017 2016 Carrying Fair Value Carrying Fair Value (in millions) Long-term debt $ 4,692 $ 4,800 $ 5,778 $ 5,506 The fair value of our long-term debt was based on quoted prices for identical or similar liabilities in markets that are not active or valuation models in which all significant inputs and value drivers are observable and, as a result, they are classified as Level 2 inputs. The carrying amounts of cash and cash equivalents, as well as instruments included in other current assets and other current liabilities that meet the definition of financial instruments, approximate fair values because of their short-term maturities. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis We also have assets and liabilities that may be measured at fair value on a nonrecurring basis; that is, the assets and liabilities are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances, such as when there is evidence of impairment, allocation of purchase price in an acquisition or when a new liability is being established that requires fair value measurement. These include long-lived assets, goodwill and other intangible assets and investments in unconsolidated subsidiaries, such as equity method investments, which may be written down to fair value as a result of impairment. The fair value measurements related to each of these rely primarily on Company-specific inputs and the Company's assumptions about the use of the assets. Since certain of the Company’s assumptions would involve inputs that are not observable, these fair values would reside within Level 3 of the fair value hierarchy. We review the carrying value of our goodwill, definite lived intangible assets, and investments in unconsolidated subsidiaries to assess recoverability as part of our annual impairment review in the fourth quarter of each year. As part of the assessment process when performing impairment tests, we estimate many factors including future sales volume, selling prices, raw materials costs, operating rates, operating expenses, inflation, discount rates, exchange rates, tax rates and capital spending. The assumptions we make are material estimates that are used in the impairment testing. Our equity method investment in the Republic of Trinidad and Tobago, PLNL, operates an ammonia plant that relies on natural gas supplied by NGC pursuant to the NGC Contract. As part of our impairment assessment of our equity method investment in PLNL during the fourth quarter of 2016, we determined the carrying value exceeded the fair value and recognized a $134 million impairment charge in 2016. Previously, in 2015, we recognized an impairment charge of $62 million related to our equity method investment in PLNL. See Note 7—Equity Method Investments for additional information.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes On December 22, 2017, the U.S. government enacted the Tax Cuts and Jobs Act (the "Tax Act" or "Tax Reform"). The impact of this new legislation is included in the period of enactment in accordance with U.S. GAAP. The most significant impact of this legislation to us is the revaluation of our deferred taxes as a result of the reduction in the federal tax rate from 35% to 21%, which is effective on January 1, 2018. The Tax Act also imposes a transition tax liability on our previously untaxed foreign earnings that is payable over an eight-year period beginning in 2018. The amount recorded in the period of enactment for the transition tax liability represents our current estimate of the provisions of the Tax Act and is a provisional amount based on amounts reasonably estimable. See further discussion below related to this estimate, which may be adjusted as more information becomes available prior to the end of the one-year measurement period in December 2018. The components of (loss) earnings before income taxes and equity in earnings of non-operating affiliates are as follows: Year ended December 31, 2017 2016 2015 (in millions) Domestic $ (186 ) $ (43 ) $ 1,031 Non-U.S. 61 (183 ) 27 $ (125 ) $ (226 ) $ 1,058 The components of the income tax (benefit) provision are as follows: Year ended December 31, 2017 2016 2015 (in millions) Current Federal $ (43 ) $ (795 ) $ 258 Foreign 19 11 20 State (6 ) (23 ) 39 (30 ) (807 ) 317 Deferred Federal (44 ) 761 76 Foreign (3 ) (1 ) (13 ) State (7 ) (21 ) 16 (54 ) 739 79 Income tax (benefit) provision before Tax Reform (84 ) (68 ) 396 Tax Reform - Current Federal 54 — — Foreign — — — State 3 — — 57 — — Tax Reform - Deferred Federal (548 ) — — Foreign — — — State — — — (548 ) — — Income tax benefit - Tax Reform (491 ) — — Income tax (benefit) provision $ (575 ) $ (68 ) $ 396 Our preliminary estimate of the transition tax liability resulting from the Tax Act could be impacted by further regulatory or other government guidance relating to provisions of existing laws or the Tax Act. If more information becomes available to cause our provisional amount to change, we will adjust our liability within the measurement period ending in December 2018. Differences in the expected income tax (benefit) provision based on statutory rates applied to (loss) earnings before income taxes and the income tax (benefit) provision reflected in the consolidated statements of operations are summarized below: Year ended December 31, 2017 2016 2015 (in millions, except percentages) (Loss) earnings before income taxes and equity in earnings of non-operating affiliates $ (125 ) $ (226 ) $ 1,058 Expected tax (benefit) provision at U.S. statutory rate of 35% (44 ) (79 ) 370 State income taxes, net of federal (21 ) (33 ) 32 Net earnings attributable to noncontrolling interests (32 ) (42 ) (12 ) U.S. manufacturing profits deduction 6 39 (17 ) Foreign tax rate differential (6 ) 30 (17 ) U.S. tax on foreign earnings 1 (10 ) — Valuation allowance (3 ) 50 16 Non-deductible capital costs — (17 ) 18 Tax rate change 17 — — Other (2 ) (6 ) 6 U.S. enacted tax rate change (Tax Reform) (552 ) — — Transition tax liability and other (Tax Reform) 61 — — Income tax (benefit) provision $ (575 ) $ (68 ) $ 396 Effective tax rate 457.2 % 30.0 % 37.4 % Income tax (benefit) provision before Tax Reform (1) $ (84 ) $ (68 ) $ 396 Effective tax rate before Tax Reform 67.0 % 30.0 % 37.4 % (1) Income tax (benefit) provision before Tax Reform reflects the income tax (benefit) provision less the Tax Reform impacts included in the table above consisting of U.S. enacted tax rate change (Tax Reform) and transition tax liability and other. Our effective tax rate is impacted by earnings attributable to noncontrolling interests in CFN for 2017 and 2016 and TNCLP for 2017, 2016 and 2015, as our consolidated income tax (benefit) provision does not include a tax provision on the earnings attributable to the noncontrolling interests. As a result, earnings attributable to the noncontrolling interests of $92 million , $119 million and $34 million in 2017, 2016 and 2015, respectively, which are included in (loss) earnings before income taxes and equity in earnings of non-operating affiliates, impact the effective tax rate in all three years. See Note 16—Noncontrolling Interests for additional information. We recorded a tax receivable of approximately $22 million as a result of our intention to carryback the tax net operating loss for the year ended December 31, 2017 to prior tax years. As a result of the carryback, the income tax provision for the tax year ended December 31, 2017 includes the tax impact of the recaptured U.S. manufacturing profits deductions claimed in prior years that will not be deductible. The tax receivable from the net operating loss carryback has been reduced by an alternative minimum tax of $36 million in the carryback periods. The alternative minimum tax that would be incurred as a result of the carryback of the net operating loss will become a refundable tax credit as a result of the impact of the Tax Act. These refundable tax credits are available for tax years subsequent to the tax year ended December 31, 2017 and are recorded in our noncurrent tax receivable. The $22 million tax receivable for the net operating loss carryback is included in prepaid income taxes on our consolidated balance sheet as of December 31, 2017. A federal income tax benefit of $145 million ( $242 million before the impact of the Tax Act) was recorded for the amount of the net operating loss for the tax year ended December 31, 2017 that will carryforward to subsequent tax years. The net operating loss carryforward is approximately $692 million and is available until the tax year 2037. State income taxes for the year ended December 31, 2017 and December 31, 2016 includes a tax benefit of $30 million and $46 million respectively, net of federal tax effect, for state net operating loss carryforwards. State income taxes for the year ended December 31, 2016 were impacted by investment tax credits of $13 million , net of federal tax effect, related to capital assets placed in service at our production facilities in Oklahoma that are indefinitely available to offset income taxes in that jurisdiction in future years. Our effective state income tax rate was also reduced as a result of the changes to our legal entity structure effected in the first quarter of 2016 as part of our strategic venture with CHS. See Note 16—Noncontrolling Interests for additional information. The income tax provision for the tax year ended December 31, 2016 includes the tax impact of the U.S. manufacturing profits deductions claimed in prior years that will not be deductible as a result of the carryback of the tax net operating loss for the year ended December 31, 2016. Non-deductible capital costs for the tax year ended December 31, 2016 include certain transaction costs capitalized in the prior year that are now deductible as a result of the termination of the proposed combination with certain businesses of OCI N.V. (OCI). The foreign tax rate differential is impacted by the inclusion of equity earnings from our equity method investment in PLNL, a foreign operating affiliate, which are included in pre-tax earnings on an after-tax basis and the tax effect of net operating losses of a foreign subsidiary of the Company for which a valuation allowance has been recorded. We determined the carrying value of our equity method investment in PLNL exceeded fair value and recognized an impairment of our equity method investment in PLNL of $134 million in the fourth quarter of 2016 and $62 million in the fourth quarter of 2015. The impairments are included in equity in earnings of operating affiliates. Our income tax provisions do not include a tax benefit for the impairment of our equity method investment as the impairment does not give rise to a tax deduction. See Note 7—Equity Method Investments for additional information. Foreign subsidiaries of the Company have incurred capital losses of $116 million that are indefinitely available to offset capital gains in the applicable foreign jurisdictions. As the future realization of these carryforwards is not anticipated, a valuation allowance of $29 million was recorded in the year ended December 31, 2016. The foreign tax rate differential for the tax year ended December 31, 2016 includes a $5 million deferred tax benefit for an enacted tax rate change. Deferred tax assets and deferred tax liabilities are as follows: December 31, 2017 2016 (in millions) Deferred tax assets: Net operating loss and capital loss carryforwards $ 359 $ 187 Retirement and other employee benefits 67 118 Unrealized loss on hedging derivatives 6 9 Intangible asset 5 34 Other 115 140 552 488 Valuation allowance (156 ) (159 ) 396 329 Deferred tax liabilities: Depreciation and amortization (256 ) (329 ) Investments in partnerships (1,151 ) (1,582 ) Foreign earnings (28 ) (28 ) Unrealized gain on hedging derivatives — (16 ) Other (8 ) (4 ) (1,443 ) (1,959 ) Net deferred tax liability $ (1,047 ) $ (1,630 ) Investments in partnerships in the table above reflects the deferred tax liability for our investments in CFN and TNCLP. These amounts were previously presented in the corresponding deferred tax asset and liability amounts; therefore, the amounts representing the deferred tax liability for our investments in partnerships as of December 31, 2016 have been reclassified to the investments in partnerships to conform to the current year presentation. A foreign subsidiary of the Company has net operating loss carryforwards of $383 million that are indefinitely available in the foreign jurisdiction. As the future realization of these carryforwards is not anticipated, a valuation allowance of $100 million has been recorded. Of this amount, $11 million and $17 million were recorded as valuation allowances in the years ended December 31, 2017 and 2016 , respectively. We consider the earnings of certain of our Canadian operating subsidiaries to not be permanently reinvested and we recognize a deferred tax liability for the future repatriation of these earnings, as they are earned. As of December 31, 2017 , we have recorded a deferred income tax liability of approximately $28 million , which reflects the additional U.S. and foreign income taxes that would be due upon the repatriation of the accumulated earnings of our non-U.S. subsidiaries that are considered to not be permanently reinvested. We file federal, provincial, state and local income tax returns principally in the United States, Canada and the United Kingdom, as well as in certain other foreign jurisdictions. In general, filed tax returns remain subject to examination by United States tax jurisdictions for years 1999 and thereafter, by Canadian tax jurisdictions for years 2006 and thereafter, and by United Kingdom tax jurisdictions for years 2015 and thereafter. Our income tax liability or transition tax expense could be impacted by the finalization of currently on-going U.S. or foreign income tax audits of prior tax years falling before the date of enactment of the Tax Act or audits by the U.S. or foreign taxing authorities, which change the amount of our total income allocable to and taxed in the United States or a foreign country. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: December 31, 2017 2016 (in millions) Unrecognized tax benefits: Beginning balance $ 134 $ 155 Additions for tax positions taken during the current year — — Additions for tax positions taken during prior years — 2 Reductions related to lapsed statutes of limitations (11 ) (7 ) Reductions related to settlements with tax jurisdictions (1 ) (16 ) Ending balance $ 122 $ 134 Unrecognized tax benefits decreased by $12 million in 2017 and $21 million in 2016. Our effective tax rate would be affected by $91 million if these unrecognized tax benefits were to be recognized in the future. Interest expense and penalties of $2 million , $4 million , and $4 million were recorded for the years ended December 31, 2017 , 2016 and 2015 , respectively. Amounts recognized in our consolidated balance sheets for accrued interest and penalties related to income taxes of $29 million and $28 million are included in other liabilities as of December 31, 2017 and 2016 , respectively. On December 18, 2015, the Protecting Americans from Tax Hikes Act of 2015 (PATH Act) was signed into law and was applicable to tax years 2015 through 2019. One of the provisions of the PATH Act permitted companies to deduct 50% of their capital expenditures for federal income tax purposes in the year qualifying assets were placed into service. We recorded a federal tax receivable of approximately $816 million for the year ended December 31, 2016 as a result of our intention at that time to carryback the tax net operating loss that was principally the result of this tax law change. The tax receivable was primarily associated with completion of the new capacity expansion projects that were placed into service at our Donaldsonville, Louisiana and Port Neal, Iowa complexes during November and December of 2016. The tax receivable is included in prepaid income taxes on our consolidated balance sheet as of December 31, 2016 and was received in the second quarter of 2017. During the third quarter of 2015, we acquired the remaining 50% equity interest in CF Fertilisers UK not previously owned by us and recognized a $94 million gain on the remeasurement to fair value of our initial 50% equity interest in CF Fertilisers UK. The earnings in CF Fertilisers UK have been permanently reinvested. Therefore, the recognition of the $94 million gain on the remeasurement of the historical equity investment does not include the recognition of tax expense on the gain. See Note 7—Equity Method Investments for additional information. We recorded an income tax benefit of $12 million during the second quarter of 2015 for the pre-tax losses on the sale of equity method investments. The tax benefit related to the loss on the sale of our interests in Keytrade is included in equity in earnings of non-operating affiliates — net of taxes in our consolidated statements of operations. See Note 7—Equity Method Investments for additional information.

Pension and Other Postretiremen

Pension and Other Postretirement Benefits	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Pension and Other Postretirement Benefits	Pension and Other Postretirement Benefits We maintain five funded pension plans — three in North America ( one U.S. plan and two Canadian plans) and two in the United Kingdom. One of our Canadian plans is closed to new employees and the two United Kingdom plans are closed to new employees and future accruals. We also provide group medical insurance benefits to certain retirees in North America. The specific medical benefits provided to retirees vary by group and location. Our plan assets, benefit obligations, funded status and amounts recognized on the consolidated balance sheets for our North America and United Kingdom plans as of the December 31 measurement date are as follows: Pension Plans Retiree Medical Plans North America United Kingdom North America December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 (in millions) Change in plan assets Fair value of plan assets as of January 1 $ 636 $ 627 $ 366 $ 414 $ — $ — Return on plan assets 70 39 16 21 — — Employer contributions 63 4 19 19 5 4 Plan participant contributions — — — — 1 1 Benefit payments (40 ) (38 ) (22 ) (19 ) (6 ) (5 ) Foreign currency translation 9 4 35 (69 ) — — Fair value of plan assets as of December 31 738 636 414 366 — — Change in benefit obligation Benefit obligation as of January 1 (759 ) (736 ) (559 ) (563 ) (52 ) (56 ) Service cost (14 ) (14 ) — — — — Interest cost (30 ) (31 ) (16 ) (19 ) (2 ) (2 ) Benefit payments 40 38 22 19 6 5 Foreign currency translation (9 ) (3 ) (52 ) 99 — — Plan participant contributions — — — — (1 ) (1 ) Change in assumptions and other (33 ) (13 ) 15 (95 ) (4 ) 2 Benefit obligation as of December 31 (805 ) (759 ) (590 ) (559 ) (53 ) (52 ) Funded status as of year end $ (67 ) $ (123 ) $ (176 ) $ (193 ) $ (53 ) $ (52 ) In the table above, the line titled "change in assumptions and other" for our pension plans primarily reflects the impact of changes in discount rates, the adoption of new mortality assumptions, and updated census data in the United Kingdom. Amounts recognized on the consolidated balance sheets consist of the following: Pension Plans Retiree Medical Plans North America United Kingdom North America December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 (in millions) Other assets $ 10 $ 7 $ — $ — $ — $ — Accrued expenses — — — — (4 ) (5 ) Other liabilities (77 ) (130 ) (176 ) (193 ) (49 ) (47 ) $ (67 ) $ (123 ) $ (176 ) $ (193 ) $ (53 ) $ (52 ) Pre-tax amounts recognized in accumulated other comprehensive loss consist of the following: Pension Plans Retiree Medical Plans North America United Kingdom North America December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 (in millions) Prior service cost (benefit) $ 1 $ 1 $ — $ — $ (2 ) $ (4 ) Net actuarial loss 80 91 73 80 12 7 $ 81 $ 92 $ 73 $ 80 $ 10 $ 3 Net periodic benefit cost (income) and other amounts recognized in accumulated other comprehensive loss for the years ended December 31 included the following: Pension Plans Retiree Medical Plans North America United Kingdom North America 2017 2016 2015 2017 2016 2015 2017 2016 2015 (in millions) Service cost $ 14 $ 14 $ 14 $ — $ — $ — $ — $ — $ — Interest cost 30 31 30 16 19 9 2 2 2 Expected return on plan assets (26 ) (30 ) (28 ) (18 ) (20 ) (9 ) — — — Amortization of prior service cost (benefit) — — — — — — (1 ) (1 ) (1 ) Amortization of actuarial loss (gain) 1 1 6 1 — — (1 ) (1 ) 1 Net periodic benefit cost (income) 19 16 22 (1 ) (1 ) — — — 2 Net actuarial (gain) loss (11 ) 4 (11 ) (13 ) 94 (8 ) 5 (2 ) (4 ) Amortization of prior service benefit — — — — — — 1 1 1 Amortization of actuarial (loss) gain (1 ) (1 ) (6 ) (1 ) — — 1 — (1 ) Total recognized in accumulated other comprehensive loss (12 ) 3 (17 ) (14 ) 94 (8 ) 7 (1 ) (4 ) Total recognized in net periodic benefit cost (income) and accumulated other comprehensive loss $ 7 $ 19 $ 5 $ (15 ) $ 93 $ (8 ) $ 7 $ (1 ) $ (2 ) Amounts that will be amortized from accumulated other comprehensive loss into net periodic benefit cost in 2018 are as follows: Pension Plans Retiree Medical Plans North America United Kingdom North America (in millions) Prior service cost (benefit) $ — $ — $ (1 ) Net actuarial loss (gain) 3 — — The accumulated benefit obligation (ABO) in aggregate for the defined benefit pension plans in North America was approximately $759 million and $712 million as of December 31, 2017 and December 31, 2016 , respectively. The ABO in aggregate for the defined benefit pension plans in the United Kingdom was approximately $590 million and $559 million as of December 31, 2017 and December 31, 2016 , respectively. The following table presents aggregated information for those individual defined benefit pension plans that have an ABO in excess of plan assets as of December 31, which excludes one North American defined benefit pension plan that has plan assets in excess of its ABO: North America United Kingdom 2017 2016 2017 2016 (in millions) Accumulated benefit obligation $ (629 ) $ (599 ) $ (590 ) $ (559 ) Fair value of plan assets 590 508 414 366 The following table presents aggregated information for those individual defined benefit pension plans that have a PBO in excess of plan assets as of December 31, which excludes one North American defined benefit pension plan that has plan assets in excess of its PBO: North America United Kingdom 2017 2016 2017 2016 (in millions) Projected benefit obligation $ (739 ) $ (699 ) $ (590 ) $ (559 ) Fair value of plan assets 663 568 414 366 Our pension funding policy in North America is to contribute amounts sufficient to meet minimum legal funding requirements plus discretionary amounts that we may deem to be appropriate. Actual contributions may vary from estimated amounts depending on changes in assumptions, actual returns on plan assets, changes in regulatory requirements and funding decisions. In accordance with United Kingdom pension legislation, our United Kingdom pension funding policy is to contribute amounts sufficient to meet the funding level target agreed between the employer and the trustees of the United Kingdom plans. Actual contributions are usually agreed with the plan trustees in connection with each triennial valuation and may vary following each such review depending on changes in assumptions, actual returns on plan assets, changes in regulatory requirements and funding decisions. Our consolidated pension funding contributions for 2018 are estimated to be approximately $15 million for the North America plans and $26 million for the United Kingdom plans. The expected future benefit payments for our pension and retiree medical plans are as follows: Pension Plans Retiree Medical Plans North America United Kingdom North America (in millions) 2018 $ 43 $ 24 $ 4 2019 45 25 4 2020 46 25 4 2021 47 26 4 2022 48 27 4 2023-2027 251 145 15 The following assumptions were used in determining the benefit obligations and expense: Pension Plans Retiree Medical Plans North America United Kingdom North America 2017 2016 2015 2017 2016 2015 2017 2016 2015 Weighted-average discount rate—obligation 3.6 % 4.0 % 4.3 % 2.5 % 2.8 % 3.8 % 3.4 % 3.8 % 3.9 % Weighted-average discount rate—expense 4.0 % 4.3 % 4.0 % 2.8 % 3.8 % 3.7 % 3.8 % 3.9 % 3.6 % Weighted-average rate of increase in future compensation 4.3 % 4.3 % 4.3 % n/a n/a n/a n/a n/a n/a Weighted-average expected long-term rate of return on assets—expense 4.2 % 4.9 % 4.8 % 4.6 % 5.2 % 5.4 % n/a n/a n/a Weighted-average retail price index—obligation n/a n/a n/a 3.2 % 3.3 % 3.1 % n/a n/a n/a Weighted-average retail price index—expense n/a n/a n/a 3.3 % 3.1 % 3.1 % n/a n/a n/a ______________________________________________________________________________ n/a—not applicable The discount rates for all plans are developed by plan using spot rates derived from a yield curve of high quality (AA rated or better) fixed income debt securities as of the year-end measurement date to calculate discounted cash flows (the projected benefit obligation) and solving for a single equivalent discount rate that produces the same projected benefit obligation. In determining our benefit obligation, we use the actuarial present value of the vested benefits to which each eligible employee is currently entitled, based on the employee’s expected date of separation or retirement. For our North America plans, the expected long-term rate of return on assets is based on analysis of historical rates of return achieved by equity and non-equity investments and current market characteristics, adjusted for estimated plan expenses and weighted by target asset allocation percentages. As of January 1, 2018 , our weighted-average expected long-term rate of return on assets is 4.5% . For our United Kingdom plans, the expected long-term rate of return on assets is based on the expected long-term performance of the underlying investments, adjusted for investment managers' fees. As of January 1, 2018 , our weighted-average expected long-term rate of return on assets is 4.2% . The retail price index for the United Kingdom plans is developed using the Bank of England implied retail price inflation curve, which is based on the difference between yields on fixed interest government bonds and index-linked government bonds. For the measurement of the benefit obligation at December 31, 2017 for our primary (U.S.) retiree medical benefit plans, the assumed health care cost trend rates, for pre-65 retirees, start with a 8.0% increase in 2018 , followed by a gradual decline in increases to 4.5% for 2026 and thereafter. For post-65 retirees, the assumed health care cost trend rates start with a 9.5% increase in 2018 , followed by a gradual decline in increases to 4.5% for 2026 and thereafter. For the measurement of the benefit obligation at December 31, 2016 for our primary (U.S.) retiree medical benefit plans, the assumed health care cost trend rates, for pre-65 retirees, start with a 7.0% increase in 2017, followed by a gradual decline in increases to 4.5% for 2024 and thereafter. For post-65 retirees, the assumed health care cost trend rates start with a 8.5% increase in 2017 , followed by a gradual decline in increases to 4.5% for 2024 and thereafter. A one-percentage point change in the assumed health care cost trend rate of our primary (U.S.) retiree medical benefit plans as of December 31, 2017 would have the following effects on our retiree medical benefit plans: One-Percentage-Point Increase Decrease (in millions) Effect on total service and interest cost for 2017 $ — $ — Effect on benefit obligation as of December 31, 2017 6 (5 ) The objectives of the investment policies governing the pension plans are to administer the assets of the plans for the benefit of the participants in compliance with all laws and regulations, and to establish an asset mix that provides for diversification and considers the risk of various different asset classes with the purpose of generating favorable investment returns. The investment policies consider circumstances such as participant demographics, time horizon to retirement and liquidity needs, and provide guidelines for asset allocation, planning horizon, general portfolio issues and investment manager evaluation criteria. The investment strategies for the plans, including target asset allocations and investment vehicles, are subject to change within the guidelines of the policies. The target asset allocation for our U.S. pension plan is 80% non-equity and 20% equity, which has been determined based on analysis of actual historical rates of return and plan needs and circumstances. The equity investments are tailored to exceed the growth of the benefit obligation and are a combination of U.S. and non-U.S. total stock market index mutual funds. The non-equity investments consist primarily of investments in debt securities and money market instruments that are selected based on investment quality and duration to mitigate volatility of the funded status and annual required contributions. The non-equity investments have a duration profile that is similar to the benefit obligation in order to mitigate the impact of interest rate changes on the funded status. This investment strategy is achieved through the use of mutual funds and individual securities. The target asset allocation for the CF Canadian plan is 60% non-equity and 40% equity, and for the Terra Canadian plan is 85% non-equity and 15% equity. The equity investments are passively managed portfolios that diversify assets across multiple securities, economic sectors and countries. The non-equity investments are high quality passively managed portfolios that diversify assets across economic sectors, countries and maturity spectrums. This investment strategy is achieved through the use of mutual funds. The pension assets in the United Kingdom plans are each administered by a Board of Trustees consisting of employer nominated trustees, member nominated trustees and an independent trustee. Trustees may be appointed or removed by CF Fertilisers UK, provided CF Fertilisers UK fulfills its obligation to have at least one third of the Board of Trustees as member nominated. It is the responsibility of the trustees to ensure prudent management and investment of the assets in the plans. The trustees meet on a quarterly basis to review and discuss fund performance and other administrative matters. The trustees’ investment objectives are to hold assets that generate returns sufficient to cover prudently each plan's liability without exposing the plans to unacceptable risk. This is accomplished through the asset allocation strategy of each plan. For both plans, if the asset allocation moves more than plus or minus 5% from the benchmark allocation, the trustees may decide to amend the asset allocation. At a minimum, the trustees review the investment strategy at every triennial actuarial valuation to ensure that the strategy remains consistent with its funding principles. The trustees may review the strategy more frequently if opportunities arise to reduce risk within the investments without jeopardizing the funding position. Assets of the United Kingdom plans are invested in externally managed pooled funds. The target asset allocation for the United Kingdom Terra plan is 55% actively managed target return funds, 30% actively and passively managed bond and gilt funds and 15% actively managed property funds. The target asset allocation for the United Kingdom Kemira plan is 50% actively managed target return funds, 45% actively and passively managed bond and gilt funds and 5% in an actively managed property fund. The target return funds diversify assets across multiple asset classes (which may include, among others, traditional equities and bonds) and may use derivatives. The bond and gilt funds generally invest in fixed income debt securities including government bonds, gilts, high yield and emerging market bonds, and investment grade corporate bonds and may use derivatives. The property funds are invested predominately in freehold and leasehold property. The fair values of our pension plan assets as of December 31, 2017 and 2016 , by major asset class, are as follows: North America December 31, 2017 Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (in millions) Cash and cash equivalents (1) $ 26 $ — $ 26 $ — Equity mutual funds Index equity (2) 136 136 — — Pooled equity (3) 42 — 42 — Fixed income U.S. Treasury bonds and notes (4) 15 15 — — Pooled mutual funds (5) 106 — 106 — Corporate bonds and notes (6) 400 — 400 — Government and agency securities (7) 9 — 9 — Other (8) 3 — 3 — Total assets at fair value by fair value levels $ 737 $ 151 $ 586 $ — Receivables—net 1 Total assets $ 738 United Kingdom December 31, 2017 Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (in millions) Cash $ 5 $ 5 $ — $ — Pooled target return funds (9) 213 — 213 — Fixed income — Pooled UK government index-linked securities (10) 31 — 31 — Pooled global fixed income funds (11) 122 — 122 — Total assets at fair value by fair value levels $ 371 $ 5 $ 366 $ — Assets measured at NAV as a practical expedient Pooled property funds (12) 43 Total assets measured at NAV as a practical expedient 43 Total assets at fair value 414 Accruals and payables—net — Total assets $ 414 North America December 31, 2016 Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (in millions) Cash and cash equivalents (1) $ 39 $ 6 $ 33 $ — Equity mutual funds Index equity (2) 112 112 — — Pooled equity (3) 41 — 41 — Fixed income U.S. Treasury bonds and notes (4) 14 14 — — Pooled mutual funds (5) 86 — 86 — Corporate bonds and notes (6) 329 — 329 — Government and agency securities (7) 15 — 15 — Other (8) 1 — 1 — Total assets at fair value by fair value levels $ 637 $ 132 $ 505 $ — Accruals and payables—net (1 ) Total assets $ 636 United Kingdom December 31, 2016 Total Fair Quoted Significant Significant (in millions) Cash $ 3 $ 3 $ — $ — Pooled target return funds (9) 185 — 185 — Fixed income Pooled UK government index-linked securities (10) 28 — 28 — Pooled global fixed income funds (11) 114 — 114 — Total assets at fair value by fair value levels $ 330 $ 3 $ 327 $ — Assets measured at NAV as a practical expedient Pooled property funds (12) 36 Total assets measured at NAV as a practical expedient 36 Total assets at fair value 366 Accruals and payables—net — Total assets $ 366 _______________________________________________________________________________ (1) Cash and cash equivalents are primarily repurchase agreements and short-term money market funds . (2) The index equity funds are mutual funds that utilize a passively managed investment approach designed to track specific equity indices. They are valued at quoted market prices in an active market, which represent the net asset values of the shares held by the plan. (3) The equity pooled mutual funds consist of pooled funds that invest in common stock and other equity securities that are traded on U.S., Canadian, and foreign markets. (4) U.S. Treasury bonds and notes are valued based on quoted market prices in an active market. (5) The fixed income pooled mutual funds invest in investment-grade corporate debt, various governmental debt obligations, and mortgage-backed securities with varying maturities. (6) Corporate bonds and notes, including private placement securities, are valued by institutional bond pricing services, which gather information from market sources and integrate credit information, observed market movements and sector news into their pricing applications and models. (7) Government and agency securities consist of municipal bonds that are valued by institutional bond pricing services, which gather information on current trading activity, market movements, trends, and specific data on specialty issues. (8) Other includes primarily mortgage-backed and asset-backed securities, which are valued by institutional pricing services, which gather information from market sources and integrate credit information, observed market movements and sector news into their pricing applications and models. (9) Pooled target return funds invest in a broad array of asset classes and a range of diversifiers including the use of derivatives. The funds are valued at net asset value (NAV) as determined by the fund managers based on the value of the underlying net assets of the fund. (10) Pooled United Kingdom government index-linked funds invest primarily in United Kingdom government index-linked gilt securities. The funds are valued at NAV as determined by the fund managers based on the value of the underlying net assets of the fund. (11) Pooled global fixed income funds invest primarily in government bonds, investment grade corporate bonds, high yield and emerging market bonds and can make use of derivatives. The funds are valued at NAV as determined by the fund managers based on the value of the underlying net assets of the fund. (12) Pooled property funds invest primarily in freehold and leasehold property in the United Kingdom. The funds are valued using NAV as a practical expedient. NAV is determined by the fund managers based on the value of the underlying net assets of the fund. We have defined contribution plans covering substantially all employees in North America and the United Kingdom. In North America, depending on the specific provisions of each plan, qualified employees receive company contributions based on a percentage of base salary, matching of employee contributions up to specified limits, or a combination of both. Qualified employees in the United Kingdom receive company contributions based on a percentage of base salary that are greater than employee contributions up to specified limits. In 2017 , 2016 , and 2015 , we recognized expense related to company contributions to the defined contribution plans of $18 million , $16 million , and $14 million , respectively. In addition to our qualified defined benefit pension plans, we also maintain certain nonqualified supplemental pension plans for highly compensated employees as defined under federal law. The amounts recognized in accrued expenses and other liabilities in our consolidated balance sheets for these plans were $2 million and $16 million as of December 31, 2017 and $3 million and $17 million as of December 31, 2016 , respectively. We recognized expense for these plans of $2 million , $3 million , and $2 million in 2017 , 2016 , and 2015 , respectively. The expense recognized in 2017 and 2016 includes a settlement charge of $1 million in each year, respectively.

Financing Agreements

Financing Agreements	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Financing Agreements	Financing Agreements Revolving Credit Agreement We have a senior secured revolving credit agreement (as amended, including by an amendment effective July 29, 2016 (the July 2016 Credit Agreement Amendment) and an amendment entered into on October 31, 2016 and effective November 21, 2016 (the November 2016 Credit Agreement Amendment), the Revolving Credit Agreement) providing for a revolving credit facility of up to $750 million (reflecting a reduction from $1.5 billion as effected by the November 2016 Credit Agreement Amendment) with a maturity of September 18, 2020. The Revolving Credit Agreement includes a letter of credit sub-limit of $125 million . Borrowings under the Revolving Credit Agreement may be used for working capital and general corporate purposes. CF Industries may designate as borrowers one or more wholly owned subsidiaries that are organized in the United States or any state thereof or the District of Columbia. Borrowings under the Revolving Credit Agreement may be denominated in dollars, Canadian dollars, euros and British pounds, and bear interest at a per annum rate equal to an applicable eurocurrency rate or base rate plus, in either case, a specified margin, and the borrowers are required to pay an undrawn commitment fee on the undrawn portion of the commitments under the Revolving Credit Agreement and customary letter of credit fees. The specified margin and the amount of the commitment fee depend on CF Holdings’ credit rating at the time. As of December 31, 2017 , we had excess borrowing capacity under the Revolving Credit Agreement of $695 million (net of outstanding letters of credit of $55 million ). There were no borrowings outstanding under the Revolving Credit Agreement as of December 31, 2017 or December 31, 2016 , or during 2017. Maximum borrowings outstanding under the Revolving Credit Agreement during the year ended December 31, 2016 were $150 million with a weighted-average annual interest rate of 1.85% . The Revolving Credit Agreement contains representations and warranties and affirmative and negative covenants, including financial covenants. As of December 31, 2017 , we were in compliance with all covenants under the Revolving Credit Agreement. Letters of Credit In addition to the letters of credit outstanding under the Revolving Credit Agreement, as described above, we have also entered into a bilateral agreement with capacity to issue letters of credit up to $75 million . As of December 31, 2017 , approximately $72 million of letters of credit were outstanding under this agreement. Senior Notes Long-term debt presented on our consolidated balance sheets as of December 31, 2017 and December 31, 2016 consisted of the following Public Senior Notes (unsecured) and Senior Secured Notes issued by CF Industries: Effective Interest Rate December 31, December 31, Principal Carrying Amount (1) Principal Carrying Amount (1) (in millions) Public Senior Notes: 6.875% due May 2018 7.344% $ — $ — $ 800 $ 795 7.125% due May 2020 7.529% 500 496 800 791 3.450% due June 2023 3.562% 750 746 750 745 5.150% due March 2034 5.279% 750 739 750 739 4.950% due June 2043 5.031% 750 741 750 741 5.375% due March 2044 5.465% 750 741 750 741 Senior Secured Notes: 3.400% due December 2021 3.782% 500 493 500 491 4.500% due December 2026 4.759% 750 736 750 735 Total long-term debt $ 4,750 $ 4,692 $ 5,850 $ 5,778 _______________________________________________________________________________ (1) Carrying amount is net of unamortized debt discount and deferred debt issuance costs. Total unamortized debt discount was $12 million as of both December 31, 2017 and December 31, 2016 , and total deferred debt issuance costs were $46 million and $60 million as of December 31, 2017 and December 31, 2016 , respectively. Public Senior Notes Under the indentures (including the applicable supplemental indentures) governing the senior notes due 2018, 2020, 2023, 2034, 2043 and 2044 identified in the table above (the Public Senior Notes), each series of Public Senior Notes is guaranteed by CF Holdings. Interest on the Public Senior Notes is payable semiannually, and the Public Senior Notes are redeemable at our option, in whole at any time or in part from time to time, at specified make-whole redemption prices. The indentures governing the Public Senior Notes contain customary events of default (including cross-default triggered by acceleration of, or a principal payment default that is not cured within an applicable grace period under, other debt having a principal amount of $150 million or more) and covenants that limit, among other things, the ability of CF Holdings and its subsidiaries, including CF Industries, to incur liens on certain properties to secure debt. If a Change of Control occurs together with a Ratings Downgrade (as both terms are defined under the indentures governing the Public Senior Notes), CF Industries would be required to offer to repurchase each series of Public Senior Notes at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest. In addition, in the event that a subsidiary of CF Holdings, other than CF Industries, becomes a borrower or a guarantor under the Revolving Credit Agreement (or any renewal, replacement or refinancing thereof), such subsidiary would be required to become a guarantor of the Public Senior Notes, provided that such requirement will no longer apply with respect to the Public Senior Notes due 2023, 2034, 2043 and 2044 following the repayment of the Public Senior Notes due 2018 and 2020 or the subsidiaries of ours, other than CF Industries, otherwise becoming no longer subject to such a requirement to guarantee the Public Senior Notes due 2018 and 2020. On November 21, 2016, in connection with the effectiveness of the November 2016 Credit Agreement Amendment, CF Industries Enterprises, Inc. (CFE) and CF Industries Sales, LLC (CFS) became subsidiary guarantors of the Public Senior Notes. On December 1, 2017, CF Industries completed the early redemption of all of the $800 million outstanding principal amount of the 6.875% senior notes due May 2018 (the 2018 Notes) in accordance with the optional redemption provisions provided in the indenture governing the 2018 Notes. The total aggregate redemption price was approximately $817 million . On December 26, 2017, CF Industries purchased approximately $300 million aggregate principal amount of the $800 million outstanding principal amount of the 7.125% senior notes due 2020 (the 2020 Notes) pursuant to a tender offer. The aggregate purchase price was approximately $331 million . As a result of the early redemption of the 2018 Notes and the purchase of the 2020 Notes, we recognized a loss on debt extinguishment of $53 million , primarily consisting of $48 million of premiums paid for the early retirement of debt for the 2018 Notes and 2020 Notes. Senior Secured Notes On November 21, 2016, CF Industries issued $500 million aggregate principal amount of 3.400% senior secured notes due 2021 (the 2021 Notes) and $750 million aggregate principal amount of 4.500% senior secured notes due 2026 (the 2026 Notes, and together with the 2021 Notes, the Senior Secured Notes). The net proceeds, after deducting discounts and offering expenses, from the issuance and sale of the Senior Secured Notes were approximately $1.23 billion . CF Industries used approximately $1.18 billion of the net proceeds for the prepayment (including payment of a make-whole amount of approximately $170 million and accrued interest) in full of the outstanding $1.0 billion aggregate principal amount of the Private Senior Notes. See "—Private Senior Notes," below. Interest on the Senior Secured Notes is payable semiannually on December 1 and June 1 beginning on June 1, 2017, and the Senior Secured Notes are redeemable at our option, in whole at any time or in part from time to time, at specified make-whole redemption prices. Under the terms of the applicable indenture, the Senior Secured Notes of each series are fully and unconditionally guaranteed on a senior secured basis, jointly and severally, by CF Holdings and each current and future domestic subsidiary of CF Holdings (other than CF Industries) that from time to time is a borrower, or guarantees indebtedness, under the Revolving Credit Agreement. In accordance with the applicable indenture, CFE and CFS, in addition to CF Holdings, guaranteed the Senior Secured Notes of each series upon the initial issuance of the Senior Secured Notes. Subject to certain exceptions, the obligations under each series of Senior Secured Notes and each guarantor’s related guarantee are secured by a first priority security interest in substantially all of the assets of CF Industries, CF Holdings and the subsidiary guarantors, including a pledge by CFS of its equity interests in CFN and mortgages over certain material fee-owned domestic real properties (the Collateral). The obligations under the Revolving Credit Agreement, together with certain letter of credit, hedging and similar obligations and future pari passu secured indebtedness, will be secured by the Collateral on a pari passu basis with the Senior Secured Notes. The liens on the Collateral securing the obligations under the Senior Secured Notes of a series and the related guarantees will be automatically released and the covenant under the applicable indenture limiting dispositions of Collateral will no longer apply if on any date after the initial issuance of the Senior Secured Notes CF Holdings has an investment grade corporate rating, with a stable or better outlook, from two of three selected ratings agencies and there is no default or event of default under the applicable indenture. Under each of the indentures governing the Senior Secured Notes, specified changes of control involving CF Holdings or CF Industries, when accompanied by a ratings downgrade, as defined with respect to the applicable series of Senior Secured Notes, constitute change of control repurchase events. Upon the occurrence of a change of control repurchase event with respect to the 2021 Notes or the 2026 Notes, as applicable, unless CF Industries has exercised its option to redeem such Senior Secured Notes, CF Industries will be required to offer to repurchase them at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but not including, the date of repurchase. The indentures governing the Senior Secured Notes contain covenants that limit, among other things, the ability of CF Holdings and its subsidiaries, including CF Industries, to incur liens on certain assets to secure debt, to engage in sale and leaseback transactions, to sell or transfer Collateral, to merge or consolidate with other entities and to sell, lease or transfer all or substantially all of the assets of CF Holdings and its subsidiaries to another entity. Each of the indentures governing the Senior Secured Notes provides for customary events of default, which include (subject in certain cases to customary grace and cure periods), among others, nonpayment of principal or interest on the applicable Senior Secured Notes; failure to comply with other covenants or agreements under the indenture; certain defaults on other indebtedness; the failure of CF Holdings' or certain subsidiaries’ guarantees of the applicable Senior Secured Notes to be enforceable; lack of validity or perfection of any lien securing the obligations under the Senior Secured Notes and the guarantees with respect to Collateral having an aggregate fair market value equal to or greater than a specified amount; and specified events of bankruptcy or insolvency. Under each indenture governing the Senior Secured Notes, in the case of an event of default arising from one of the specified events of bankruptcy or insolvency, the applicable Senior Secured Notes would become due and payable immediately, and, in the case of any other event of default (other than an event of default related to CF Industries' and CF Holdings' reporting obligations), the trustee or the holders of at least 25% in aggregate principal amount of the applicable Senior Secured Notes then outstanding may declare all of such Senior Secured Notes to be due and payable immediately. Private Senior Notes The senior notes due 2022, 2025 and 2027 (the Private Senior Notes), issued by CF Industries on September 24, 2015, were governed by the terms of a note purchase agreement (as amended, including by an amendment effective September 7, 2016, the Note Purchase Agreement). The Private Senior Notes were guaranteed by CF Holdings. All obligations under the Note Purchase Agreement were unsecured. On November 21, 2016, we prepaid in full the outstanding $1.0 billion aggregate principal amount of our Private Senior Notes. The prepayment of $1.18 billion included the payment of a make-whole amount of approximately $170 million and accrued interest. Loss on debt extinguishment of $167 million on our consolidated statements of operations excludes $3 million of the make-whole payment, which was accounted for as a modification and recognized on our consolidated balance sheet as deferred financing fees, a reduction of long-term debt, and is being amortized using the effective interest rate method over the term of the Senior Secured Notes. Bridge Credit Agreement On August 6, 2015, we entered into a definitive agreement (as amended, the Combination Agreement) to combine with the European, North American and global distribution businesses of OCI N.V. (OCI). On September 18, 2015, in connection with the proposed combination, CF Holdings and CF Industries entered into a senior unsecured 364 -Day Bridge Credit Agreement (as amended, the Bridge Credit Agreement). Upon the termination of the Combination Agreement in the second quarter of 2016, the lenders’ commitments under the Bridge Credit Agreement terminated automatically. There were no borrowings under the Bridge Credit Agreement. See Note 12—Interest Expense for additional information.

Interest Expense

Interest Expense	12 Months Ended
	Dec. 31, 2017
Interest Expense [Abstract]
Interest Expense	Interest Expense Details of interest expense are as follows: Year ended December 31, 2017 2016 2015 (in millions) Interest on borrowings (1) $ 300 $ 303 $ 267 Fees on financing agreements (1)(2)(3) 16 59 17 Interest on tax liabilities 1 4 3 Interest capitalized (2 ) (166 ) (154 ) Interest expense $ 315 $ 200 $ 133 _______________________________________________________________________________ (1) See Note 11—Financing Agreements for additional information. (2) Fees on financing agreements for the year ended December 31, 2016 includes $28 million of fees related to the termination of the tranche B commitment under the bridge credit agreement as a result of the termination of the Combination Agreement. Fees on financing agreements for the year ended December 31, 2015 includes $6 million of accelerated amortization of deferred fees related to the termination in September 2015 of the tranche A commitment under the bridge credit agreement. See Note 11—Financing Agreements additional information. (3) Fees on financing agreements for the year ended December 31, 2016 includes $9 million of accelerated amortization of deferred fees related to the payment of the Private Senior Notes in November 2016, $2 million of accelerated amortization of deferred fees related to the July 2016 Credit Agreement Amendment, which reduced the Revolving Credit Facility to $1.5 billion from $2.0 billion , and $4 million of accelerated amortization of deferred fees related to the November 2016 Credit Agreement Amendment, which reduced the Revolving Credit Facility to $750 million from $1.5 billion . See Note 11—Financing Agreements for additional information.

Other Operating-Net

Other Operating-Net	12 Months Ended
	Dec. 31, 2017
Other Operating-Net
Other Operating-Net	Other Operating Expenses Pursuant to the termination agreement entered into on May 22, 2016, under which CF Holdings, OCI and the other parties to the Combination Agreement agreed to terminate the Combination Agreement by mutual written consent, CF Holdings paid OCI a termination fee of $150 million , which is included in transaction costs in our consolidated statement of operations for the year ended December 31, 2016. Details of other operating—net are as follows: Year ended December 31, 2017 2016 2015 (in millions) Loss on disposal of property, plant and equipment—net $ 3 $ 10 $ 21 Expansion project costs (1) — 73 51 Loss on foreign currency derivatives (2) — — 22 Loss (gain) on foreign currency transactions (3) 2 93 (8 ) Loss on embedded derivative (4) 4 23 — Other 9 9 6 Other operating—net $ 18 $ 208 $ 92 (1) Expansion project costs that did not qualify for capitalization include amounts related to administrative and consulting services for our capacity expansion projects in Port Neal, Iowa and Donaldsonville, Louisiana. Our capacity expansion projects were completed as of December 31, 2016. (2) See Note 14—Derivative Financial Instruments for additional information. (3) Loss (gain) on foreign currency transactions primarily relates to the unrealized foreign currency exchange rate impact on intercompany debt that has not been permanently invested. (4) The loss on embedded derivative consists of unrealized and realized losses related to a provision of our strategic venture with CHS. See Note 8—Fair Value Measurements for additional information.

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments We use derivative financial instruments to reduce our exposure to changes in commodity prices and foreign currency exchange rates. Commodity Price Risk Management Natural gas is the largest and most volatile component of the manufacturing cost for nitrogen-based products. We manage the risk of changes in natural gas prices primarily through the use of derivative financial instruments. The derivatives that we use for this purpose are primarily natural gas fixed price swaps and natural gas options traded in the OTC markets. These natural gas derivatives settle using primarily a NYMEX futures price index, which represents the basis for fair value at any given time. We enter into natural gas derivative contracts with respect to natural gas to be consumed by us in the future, and settlements of those derivative contracts are scheduled to coincide with our anticipated purchases of natural gas used to manufacture nitrogen products during those future periods. We use natural gas derivatives as an economic hedge of natural gas price risk, but without the application of hedge accounting. As a result, changes in fair value of these contracts are recognized in earnings. As of December 31, 2017 , we have natural gas derivative contracts covering periods through the end of 2018. As of December 31, 2017 and 2016 , we had open natural gas derivative contracts for 35.9 million MMBtus and 183.0 million MMBtus, respectively. For the year ended December 31, 2017 , we used derivatives to cover approximately 42% of our natural gas consumption. Foreign Currency Exchange Rates A portion of the costs for our completed capacity expansion projects at our Donaldsonville, Louisiana complex and Port Neal, Iowa complex were euro-denominated. In order to manage our exposure to changes in the euro to U.S. dollar currency exchange rates, we hedged our projected euro-denominated payments through the end of 2016 using foreign currency forward contracts. As of December 31, 2017 and December 31, 2016, accumulated other comprehensive loss (AOCL) includes $6 million and $7 million , respectively, of pre-tax gains related to the foreign currency derivatives that were originally designated as cash flow hedges. The balance in AOCL is being reclassified into income over the depreciable lives of the property, plant and equipment associated with the capacity expansion projects, of which $1 million was reclassifed into income in 2017. The effect of derivatives in our consolidated statements of operations is shown in the table below: Gain (loss) in income Year ended December 31, Location 2017 2016 2015 (in millions) Natural gas derivatives Cost of sales $ (61 ) $ 260 $ (176 ) Foreign exchange contracts Other operating—net — — 22 Unrealized (losses) gains recognized in income (61 ) 260 (154 ) Realized losses (26 ) (133 ) (114 ) Net derivative (losses) gains $ (87 ) $ 127 $ (268 ) The fair values of derivatives on our consolidated balance sheets are shown below. As of December 31, 2017 and 2016 , none of our derivative instruments were designated as hedging instruments. See Note 8—Fair Value Measurements for additional information on derivative fair values. Asset Derivatives Liability Derivatives Balance Sheet Location December 31, Balance Sheet Location December 31, 2017 2016 2017 2016 (in millions) (in millions) Natural gas derivatives Other current assets $ 1 $ 52 Other current liabilities $ (12 ) $ — Natural gas derivatives Other assets — 4 Other liabilities — (6 ) Total derivatives $ 1 $ 56 $ (12 ) $ (6 ) The counterparties to our derivative contracts are multinational commercial banks, major financial institutions and large energy companies. Our derivatives are executed with several counterparties, generally under International Swaps and Derivatives Association (ISDA) agreements. The ISDA agreements are master netting arrangements commonly used for OTC derivatives that mitigate exposure to counterparty credit risk, in part, by creating contractual rights of netting and setoff, the specifics of which vary from agreement to agreement. These rights are described further below: • Settlement netting generally allows us and our counterparties to net, into a single net payable or receivable, ordinary settlement obligations arising between us under the ISDA agreement on the same day, in the same currency, for the same types of derivative instruments, and through the same pairing of offices. • Close-out netting rights are provided in the event of a default or other termination event (as defined in the ISDA agreements), including bankruptcy. Depending on the cause of early termination, the non-defaulting party may elect to terminate all or some transactions outstanding under the ISDA agreement. The values of all terminated transactions and certain other payments under the ISDA agreement are netted, resulting in a single net close-out amount payable to or by the non-defaulting party. Termination values may be determined using a mark-to-market approach or based on a party's good faith estimate of its loss. If the final net close-out amount is payable by the non-defaulting party, that party's obligation to make the payment may be conditioned on factors such as the termination of all derivative transactions between the parties or payment in full of all of the defaulting party's obligations to the non-defaulting party, in each case regardless of whether arising under the ISDA agreement or otherwise. • Setoff rights are provided by certain of our ISDA agreements and generally allow a non-defaulting party to elect to set off, against the final net close-out payment, other matured and contingent amounts payable between us and our counterparties under the ISDA agreement or otherwise. Typically, these setoff rights arise upon the early termination of all transactions outstanding under an ISDA agreement following a default or specified termination event. Most of our ISDA agreements contain credit-risk-related contingent features such as cross default provisions and credit support thresholds. In the event of certain defaults or a credit ratings downgrade, our counterparty may request early termination and net settlement of certain derivative trades or may require us to collateralize derivatives in a net liability position. The Revolving Credit Agreement, at any time when it is secured, provides a cross collateral feature for those of our derivatives that are with counterparties that are party to, or affiliates of parties to, the Revolving Credit Agreement so that no separate collateral would be required for those counterparties in connection with such derivatives. In the event the Revolving Credit Agreement becomes unsecured, separate collateral could be required in connection with such derivatives. As of December 31, 2017 and 2016 , the aggregate fair value of the derivative instruments with credit-risk-related contingent features in net liability positions was $12 million and zero , respectively, which also approximates the fair value of the maximum amount of additional collateral that would need to be posted or assets needed to settle the obligations if the credit-risk-related contingent features were triggered at the reporting dates. As of December 31, 2017 and 2016 , we had no cash collateral on deposit with counterparties for derivative contracts. The credit support documents executed in connection with certain of our ISDA agreements generally provide us and our counterparties the right to set off collateral against amounts owing under the ISDA agreements upon the occurrence of a default or a specified termination event. The following table presents amounts relevant to offsetting of our derivative assets and liabilities as of December 31, 2017 and 2016 : Amounts presented in consolidated balance sheets (1) Gross amounts not offset in consolidated balance sheets Financial instruments Cash collateral received (pledged) Net amount (in millions) December 31, 2017 Total derivative assets $ 1 $ 1 $ — $ — Total derivative liabilities (12 ) (1 ) — (11 ) Net derivative liabilities $ (11 ) $ — $ — $ (11 ) December 31, 2016 Total derivative assets $ 56 $ 6 $ — $ 50 Total derivative liabilities (6 ) (6 ) — — Net derivative assets $ 50 $ — $ — $ 50 _______________________________________________________________________________ (1) We report the fair values of our derivative assets and liabilities on a gross basis on our consolidated balance sheets. As a result, the gross amounts recognized and net amounts presented are the same. We do not believe the contractually allowed netting, close-out netting or setoff of amounts owed to, or due from, the counterparties to our ISDA agreements would have a material effect on our financial position.

Supplemental Balance Sheet Data

Supplemental Balance Sheet Data	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Supplemental Balance Sheet Data	Supplemental Balance Sheet Data Accounts Receivable — Net Accounts receivable—net consist of the following: December 31, 2017 2016 (in millions) Trade $ 297 $ 227 Other 10 9 Accounts receivable—net $ 307 $ 236 Trade accounts receivable is net of an allowance for doubtful accounts of $3 million as of December 31, 2017 and 2016 . Inventories Inventories consist of the following: December 31, 2017 2016 (in millions) Finished goods $ 233 $ 279 Raw materials, spare parts and supplies 42 60 Total inventories $ 275 $ 339 Accounts Payable and Accrued Expenses Accounts payable and accrued expenses consist of the following: December 31, 2017 2016 (in millions) Accounts payable $ 99 $ 81 Capacity expansion project costs — 185 Accrued natural gas costs 109 111 Payroll and employee-related costs 65 46 Accrued interest 38 53 Other 161 162 Accounts payable and accrued expenses $ 472 $ 638 Capacity expansion project costs included the capital expenditures invested in the capacity expansion projects. We completed our capacity expansion projects at Donaldsonville, Louisiana and Port Neal, Iowa in December 2016. Payroll and employee-related costs include accrued salaries and wages, vacation, incentive plans and payroll taxes. Accrued interest includes interest payable on our outstanding senior notes. See Note 11—Financing Agreements and Note 12—Interest Expense for additional information. Other includes accrued utilities, property taxes, sales incentives and other credits, accrued litigation settlement costs, accrued transaction costs, maintenance and professional services. Other Current Liabilities As of December 31, 2017 , other current liabilities of $17 million consists of $12 million of unrealized loss on natural gas derivatives and $5 million of the current portion of the unrealized loss on the embedded derivative liability related to our strategic venture with CHS. See Note 8—Fair Value Measurements , Note 14—Derivative Financial Instruments and Note 16—Noncontrolling Interests for additional information. As of December 31, 2016 , other current liabilities of $5 million consists of the current portion of the unrealized loss on the embedded derivative liability related to our strategic venture with CHS. Other Liabilities Other liabilities consist of the following: December 31, 2017 2016 (in millions) Benefit plans and deferred compensation $ 324 $ 393 Tax-related liabilities 93 103 Unrealized losses on derivatives — 6 Unrealized loss on embedded derivative 20 21 Environmental and related costs 7 8 Other 16 14 Other liabilities $ 460 $ 545 Benefit plans and deferred compensation include liabilities for pensions, retiree medical benefits, and the noncurrent portion of incentive plans. See Note 10—Pension and Other Postretirement Benefits for additional information.

Noncontrolling Interest

Noncontrolling Interest	12 Months Ended
	Dec. 31, 2017
Noncontrolling Interest [Abstract]
Noncontrolling Interest	Noncontrolling Interests A reconciliation of the beginning and ending balances of noncontrolling interests and distributions payable to the noncontrolling interests on our consolidated balance sheets is provided below. Year ended December 31, 2017 2016 2015 CFN TNCLP Total CFN TNCLP Total TNCLP (in millions) Noncontrolling interests: Beginning balance $ 2,806 $ 338 $ 3,144 $ — $ 352 $ 352 $ 363 Issuance of noncontrolling interest in CFN — — — 2,792 — 2,792 — Earnings attributable to noncontrolling interests 73 19 92 93 26 119 34 Declaration of distributions payable (107 ) (24 ) (131 ) (79 ) (40 ) (119 ) (45 ) Ending balance $ 2,772 $ 333 $ 3,105 $ 2,806 $ 338 $ 3,144 $ 352 Distributions payable to noncontrolling interests: Beginning balance $ — $ — $ — $ — $ — $ — $ — Declaration of distributions payable 107 24 131 79 40 119 45 Distributions to noncontrolling interests (107 ) (24 ) (131 ) (79 ) (40 ) (119 ) (45 ) Ending balance $ — $ — $ — $ — $ — $ — $ — CF Industries Nitrogen, LLC (CFN) We commenced a strategic venture with CHS on February 1, 2016, at which time CHS purchased a minority equity interest in CFN, a subsidiary of CF Holdings, for $2.8 billion , which represented approximately 11% of the membership interest of CFN. We own the remaining membership interest. Under the terms of CFN's limited liability company agreement, each member’s interest will reflect, over time, the impact of the profitability of CFN and any member contributions made to, and distributions received from, CFN. For financial reporting purposes, the assets, liabilities and earnings of the strategic venture are consolidated into our financial statements. CHS' interest in the strategic venture is recorded in noncontrolling interests in our consolidated financial statements. On February 1, 2016, CHS also began receiving deliveries pursuant to a supply agreement under which CHS has the right to purchase annually from CFN up to approximately 1.1 million tons of granular urea and 580,000 tons of UAN at market prices. As a result of its minority equity interest in CFN, CHS is entitled to semi-annual cash distributions from CFN. We are also entitled to semi-annual cash distributions from CFN. The amounts of distributions from CFN to us and CHS are based generally on the profitability of CFN and determined based on the volume of granular urea and UAN sold by CFN to us and CHS pursuant to supply agreements, less a formula driven amount based primarily on the cost of natural gas used to produce the granular urea and UAN, and adjusted for the allocation of items such as operational efficiencies and overhead amounts. Additionally, under the terms of the strategic venture, if our credit rating as determined by two of three specified credit rating agencies is below certain levels , we are required to make a non-refundable yearly payment of $5 million to CHS. In 2016, our credit ratings were reduced and we made a payment to CHS. In 2017, since our credit ratings had not changed, we made a second $5 million payment to CHS. The payment will continue on a yearly basis until the earlier of the date that our credit rating is upgraded to or above certain levels by two of the three specified credit rating agencies or February 1, 2026. This obligation is recognized on our consolidated balance sheets as an embedded derivative. As of December 31, 2017 and 2016 , the embedded derivative liability of $25 million and $26 million , respectively, is included in other current liabilities and other liabilities on our consolidated balance sheets. Included in other operating—net in our consolidated statements of operations for the years ended December 31, 2017 and 2016 is a net loss of $4 million and $23 million , respectively. See Note 8—Fair Value Measurements for additional information. In the first quarter of 2018 , the CFN Board of Managers approved semi-annual distribution payments for the distribution period ended December 31, 2017 in accordance with the Second Amended and Restated Limited Liability Company Agreement of CFN. On January 31, 2018 , CFN distributed $49 million to CHS for the distribution period ended December 31, 2017 . Terra Nitrogen Company, L.P. (TNCLP) TNCLP is a master limited partnership (MLP) that owns a nitrogen fertilizer manufacturing facility in Verdigris, Oklahoma. We own approximately 75.3% of TNCLP through general and limited partnership interests. Outside investors own the remaining approximately 24.7% of the limited partnership. For financial reporting purposes, the assets, liabilities and earnings of the partnership are consolidated into our financial statements. The outside investors' limited partnership interests in the partnership are recorded in noncontrolling interests in our consolidated financial statements. The noncontrolling interest represents the noncontrolling unitholders' interest in the earnings and equity of TNCLP. Affiliates of CF Industries are required to purchase all of TNCLP's fertilizer products at market prices as defined in the Amendment to the General and Administrative Services and Product Offtake Agreement, dated September 28, 2010. TNCLP makes cash distributions to the general and limited partners based on formulas defined within its First Amended and Restated Agreement of Limited Partnership (as amended, the TNCLP Agreement of Limited Partnership). Cash available for distribution (Available Cash) is defined in the TNCLP Agreement of Limited Partnership generally as all cash receipts less all cash disbursements, less certain reserves (including reserves for future operating and capital needs) established as the general partner determines in its reasonable discretion to be necessary or appropriate. Changes in working capital affect Available Cash, as increases in the amount of cash invested in working capital items (such as increases in receivables or inventory and decreases in accounts payable) reduce Available Cash, while declines in the amount of cash invested in working capital items increase Available Cash. Cash distributions to the limited partners and general partner vary depending on the extent to which the cumulative distributions exceed certain target threshold levels set forth in the TNCLP Agreement of Limited Partnership. In each quarter of 2017 , 2016 and 2015 , the minimum quarterly distributions requirements under the TNCLP Agreement of Limited Partnership were satisfied, which entitled TNGP, the general partner of TNCLP and an indirect wholly owned subsidiary of CF Holdings, to receive incentive distributions on its general partner interests (in addition to minimum quarterly distributions). TNGP has assigned its right to receive such incentive distributions to an affiliate of TNGP that is also an indirect wholly owned subsidiary of CF Holdings. The earnings attributed to our general partner interest in excess of the threshold levels for the years ended December 31, 2017 , 2016 and 2015 were $41 million , $65 million and $116 million , respectively. On February 7, 2018, we announced that TNGP elected to exercise its right to purchase all of the 4,612,562 publicly traded common units of TNCLP on April 2, 2018, for a cash purchase price of $84.033 per unit in accordance with the terms of TNCLP’s partnership agreement. The purchase price of $84.033 per unit was determined under the terms of TNCLP’s partnership agreement as the average of the daily closing prices per common unit for the 20 consecutive trading days beginning with January 5, 2018 and ending with February 2, 2018. The purchase price of all of the 4,612,562 publicly traded common units of TNCLP is approximately $390 million . We intend to fund the purchase with cash on hand. As of the April 2, 2018 purchase date, all rights of the holders of the units will terminate, with the exception of the right to receive payment of the purchase price. Upon completion of the purchase, we will own 100 percent of the general and limited partnership interests of TNCLP, and the common units representing limited partner interests will cease to be publicly traded or listed on the New York Stock Exchange. Internal Revenue Service Regulation Impacting Master Limited Partnerships Currently, no federal income taxes are paid by TNCLP due to its MLP status. Partnerships are generally not subject to federal income tax, although publicly-traded partnerships (such as TNCLP) are treated as corporations for federal income tax purposes (and therefore are subject to federal income tax), unless at least 90% of the partnership's gross income is "qualifying income" as defined in Section 7704 of the Internal Revenue Code of 1986, as amended, and the partnership is not required to register as an investment company under the Investment Company Act of 1940. Any change in the tax treatment of income from fertilizer-related activities as qualifying income could cause TNCLP to be treated as a corporation for federal income tax purposes. If TNCLP were taxed as a corporation, under current law, due to its current ownership interest, CF Industries would qualify for a partial dividends received deduction on the dividends received from TNCLP. Therefore, we would not expect a change in the tax treatment of TNCLP to have a material impact on the consolidated financial condition or results of operations of CF Holdings. On January 19, 2017, the Internal Revenue Service (IRS) issued final regulations on the types of income and activities that constitute or generate qualifying income of a MLP. For calendar year MLPs, the effective date of the regulations is January 1, 2018. The regulations have the effect of limiting the types of income and activities that qualify under the MLP rules, subject to certain transition provisions. The regulations define the activities that generate qualifying income from certain processing or refining and transportation activities with respect to any mineral or natural resource (including fertilizer) as activities that generate qualifying income, but the regulations reserve on specifics regarding fertilizer-related activities. We continue to monitor these IRS regulatory activities.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2017
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders' Equity Common Stock Our Board of Directors (the Board) has authorized certain programs to repurchase shares of our common stock. These programs have generally permitted repurchases to be made from time to time in the open market, through privately-negotiated transactions, through block transactions or otherwise. Our management has determined the manner, timing and amount of repurchases under these programs based on the evaluation of market conditions, stock price and other factors. On August 6, 2014, the Board authorized a program to repurchase up to $1 billion of the common stock of CF Holdings through December 31, 2016 (the 2014 Program). The following table summarizes the share repurchases under the 2014 Program. 2014 Program Shares Amounts (in millions) Shares repurchased as of December 31, 2014 7.0 $ 373 Shares repurchased in 2015: First quarter 4.1 $ 237 Second quarter 4.5 268 Third quarter 0.3 22 Fourth quarter — — Total shares repurchased in 2015 8.9 527 Shares repurchased as of December 31, 2015 15.9 $ 900 In 2016, no shares were repurchased under the 2014 Program. The 2014 Program expired on December 31, 2016 with $100 million of repurchase authorization remaining. No share repurchase programs were authorized by the Board in 2017. During 2016 and 2015, we retired 2.4 million shares and 10.7 million shares, respectively, of repurchased stock. The retired shares were returned to the status of authorized but unissued shares. As part of the retirements, we reduced our treasury stock, paid-in capital, and retained earnings balances for 2016 by $150 million , $14 million , and $136 million , respectively, and for 2015 by $597 million , $62 million , and $535 million , respectively. As of December 31, 2017 , 2016 and 2015, we held in treasury approximately one thousand shares, 28 thousand shares and 2.4 million shares, respectively, of repurchased stock. Changes in common shares outstanding are as follows: Year ended December 31, 2017 2016 2015 Beginning balance 233,114,169 233,081,556 241,673,050 Exercise of stock options 90,938 17,600 274,705 Issuance of restricted stock (1) 93,833 44,941 40,673 Forfeitures of restricted stock — (10,000 ) — Purchase of treasury shares (2) (11,851 ) (19,928 ) (8,906,872 ) Ending balance 233,287,089 233,114,169 233,081,556 _______________________________________________________________________________ (1) Includes shares issued from treasury. (2) Includes shares withheld to pay employee tax obligations upon the vesting of restricted stock. Preferred Stock CF Holdings is authorized to issue 50 million shares of $0.01 par value preferred stock. Our Second Amended and Restated Certificate of Incorporation, as amended, authorizes the Board, without any further stockholder action or approval, to issue these shares in one or more classes or series, and (except in the case of our Series A Junior Participating Preferred Stock, 500,000 shares of which are authorized and the terms of which were specified in the original certificate of incorporation of CF Holdings) to fix the rights, preferences and privileges of the shares of each wholly unissued class or series and any of its qualifications, limitations or restrictions. The Series A Junior Participating Preferred Stock had been established in CF Holdings’ original certificate of incorporation in connection with our former stockholder rights plan that expired in 2015. In September 2016, in connection with the Plan (as defined below), 500,000 shares of preferred stock were designated as Series B Junior Participating Preferred Stock. In July 2017, the Series B Junior Participating Preferred Stock was eliminated in connection with the expiration of the Plan. No shares of preferred stock have been issued. Tax Benefits Preservation Plan As of December 31, 2016, we had a stockholders rights plan intended to help protect our tax net operating losses and certain other tax assets by deterring any person from becoming a "5-percent shareholder" (as defined in Section 382 of the Internal Revenue Code of 1986, as amended). The terms of the rights were set forth in a Tax Benefits Preservation Plan (the Plan) dated as of September 6, 2016 and amended as of July 25, 2017 between us and Computershare Trust Company, N.A., as rights agent. The rights expired on July 25, 2017 without having been exercised . Accumulated Other Comprehensive (Loss) Income Changes to accumulated other comprehensive (loss) income (AOCI) and the impact on other comprehensive income (loss) are as follows: Foreign Currency Translation Adjustment Unrealized Gain (Loss) on Securities Unrealized Gain (Loss) on Derivatives Defined Benefit Plans Accumulated Other Comprehensive (Loss) Income (in millions) Balance as of December 31, 2014 $ (41 ) $ 1 $ 5 $ (125 ) $ (160 ) Reclassification to earnings — 1 — 6 7 Impact of CF Fertilisers UK acquisition 9 — — 38 47 Gain arising during the period — — — 24 24 Effect of exchange rate changes and deferred taxes (166 ) (1 ) — (1 ) (168 ) Balance as of December 31, 2015 (198 ) 1 5 (58 ) (250 ) Unrealized loss — (1 ) — — (1 ) Reclassification to earnings — 1 — 1 2 Loss arising during the period — — — (97 ) (97 ) Effect of exchange rate changes and deferred taxes (74 ) — — 22 (52 ) Balance as of December 31, 2016 (272 ) 1 5 (132 ) (398 ) Reclassification to earnings — — (1 ) 1 — Gain arising during the period — — — 19 19 Effect of exchange rate changes and deferred taxes 127 — — (11 ) 116 Balance as of December 31, 2017 $ (145 ) $ 1 $ 4 $ (123 ) $ (263 ) Reclassifications out of AOCI to the consolidated statements of operations for the years ended December 31, 2017 , 2016 and 2015 were as follows: Year ended December 31, 2017 2016 2015 (in millions) Foreign Currency Translation Adjustment CF Fertilisers UK equity method investment remeasurement (1) $ — $ — $ 9 Total before tax — — 9 Tax effect — — — Net of tax $ — $ — $ 9 Unrealized Gain (Loss) on Securities Available-for-sale securities (2) $ — $ 1 $ 1 Total before tax — 1 1 Tax effect — — (1 ) Net of tax $ — $ 1 $ — Unrealized Gain (Loss) on Derivatives Reclassification of de-designated hedges $ (1 ) $ — $ — Total before tax (1 ) — — Tax effect — — — Net of tax $ (1 ) $ — $ — Defined Benefit Plans CF Fertilisers UK equity method investment remeasurement (1) $ — $ — $ 38 Amortization of prior service cost (benefit) (3) (1 ) (1 ) (1 ) Amortization of net loss (3) 2 2 7 Total before tax 1 1 44 Tax effect — — (2 ) Net of tax $ 1 $ 1 $ 42 Total reclassifications for the period $ — $ 2 $ 51 _______________________________________________________________________________ (1) Represents the amount that was reclassified from AOCI into equity in earnings of non-operating affiliates—net of taxes as a result of the remeasurement to fair value of our initial 50% equity interest in CF Fertilisers UK . (2) Represents the balance that was reclassified into interest income. (3) These components are included in the computation of net periodic pension cost and were reclassified from AOCI into cost of sales and selling, general and administrative expenses.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation 2014 Equity and Incentive Plan On May 14, 2014, our shareholders approved the CF Industries Holdings, Inc. 2014 Equity and Incentive Plan (the 2014 Equity and Incentive Plan) which replaced the CF Industries Holdings, Inc. 2009 Equity and Incentive Plan. Under the 2014 Equity and Incentive Plan, we may grant incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance awards (payable in cash or stock) and other stock-based awards to our officers, employees, consultants and independent contractors (including non-employee directors). The purpose of the 2014 Equity and Incentive Plan is to provide an incentive for our employees, officers, consultants and non-employee directors that is aligned with the interests of our stockholders. Share Reserve and Individual Award Limits The maximum number of shares reserved for the grant of awards under the 2014 Equity and Incentive Plan is the sum of (i) 13.9 million and (ii) the number of shares subject to outstanding awards under our predecessor plans to the extent such awards terminate or expire without delivery of shares. For purposes of determining the number of shares of stock available for grant under the 2014 Equity and Incentive Plan, each option or stock appreciation right is counted against the reserve as one share. Each share of stock granted, other than an option or a stock appreciation right, is counted against the reserve as 1.61 shares. If any outstanding award expires or is settled in cash, any unissued shares subject to the award are again available for grant under the 2014 Equity and Incentive Plan. Shares tendered in payment of the exercise price of an option and shares withheld by the Company or otherwise received by the Company to satisfy tax withholding obligations are not available for future grant under the 2014 Equity and Incentive Plan. As of December 31, 2017 , we had 9.5 million shares available for future awards under the 2014 Equity and Incentive Plan. The 2014 Equity and Incentive Plan provides that no more than 5.0 million underlying shares may be granted to a participant in any one calendar year. Stock Options Under the 2014 Equity and Incentive Plan and our predecessor plans, we granted to plan participants nonqualified stock options to purchase shares of our common stock. The exercise price of these options is equal to the market price of our common stock on the date of grant. The contractual life of each option is ten years and generally one-third of the options vest on each of the first three anniversaries of the date of grant. The fair value of each stock option award is estimated using the Black-Scholes option valuation model. Key assumptions used and resulting grant date fair values are shown in the following table. 2017 2016 2015 Weighted-average assumptions: Expected term of stock options 4.3 Years 4.3 Years 4.3 Years Expected volatility 40% 39% 31% Risk-free interest rate 1.9% 1.2% 1.5% Expected dividend yield 3.9% 3.3% 1.9% Weighted-average grant date fair value $7.66 $8.97 $13.99 The expected volatility of our stock options is based on the combination of the historical volatility of our common stock and implied volatilities of exchange traded options on our common stock. The expected term of options is estimated based on our historical exercise experience, post-vesting employment termination behavior and the contractual term. The risk-free interest rate is based on the U.S. Treasury Strip yield curve in effect at the time of grant for the expected term of the options. A summary of stock option activity during the year ended December 31, 2017 is presented below: Shares Weighted- Average Exercise Price Outstanding as of December 31, 2016 4,905,272 $ 40.18 Granted 1,790,100 31.00 Exercised (90,938 ) 16.48 Forfeited (104,424 ) 34.96 Expired (67,276 ) 48.15 Outstanding as of December 31, 2017 6,432,734 37.97 Exercisable as of December 31, 2017 3,568,992 40.16 Selected amounts pertaining to stock option exercises are as follows: 2017 2016 2015 (in millions) Cash received from stock option exercises $ 1 $ — $ 8 Actual tax benefit realized from stock option exercises $ 1 $ — $ 2 Pre-tax intrinsic value of stock options exercised $ 2 $ — $ 8 The following table summarizes information about stock options outstanding and exercisable as of December 31, 2017 : Options Outstanding Options Exercisable Range of Exercise Prices Shares Weighted- Average Remaining Contractual Term (years) Weighted- Average Exercise Price Aggregate Intrinsic Value (1) (in millions) Shares Weighted- Average Remaining Contractual Term (years) Weighted- Average Exercise Price Aggregate Intrinsic Value (1) (in millions) $ 9.73 - $20.00 502,120 2.2 $ 15.39 $ 14 502,120 2.2 $ 15.39 $ 14 $20.01 - $62.25 5,930,614 7.2 39.88 36 3,066,872 5.6 44.22 10 6,432,734 6.8 37.97 $ 50 3,568,992 5.4 40.16 $ 24 _______________________________________________________________________________ (1) The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $42.54 as of December 31, 2017 , which would have been received by the option holders had all option holders exercised their options as of that date. Restricted Stock Awards, Restricted Stock Units and Performance Share Units The fair value of a restricted stock award (RSA) or an award of restricted stock units (RSU) is equal to the number of shares subject to the award multiplied by the closing market price of our common stock on the date of grant. We estimated the fair value of each performance share unit (PSU) on the date of grant using a Monte Carlo simulation. RSU and PSU awards are granted to key employees and generally vest three years from the date of grant. The vesting of PSUs is also subject to the attainment of applicable performance goals during the performance period. The RSAs awarded to non-management members of the Board vest the earlier of one year from the date of the grant or the date of the next annual stockholder meeting. During the vesting period, the holders of the RSAs are entitled to dividends and voting rights. During the vesting period, the holders of the RSUs are paid dividend equivalents in cash to the extent we pay cash dividends. PSUs accrue dividend equivalents to the extent we pay cash dividends on our common stock during the performance and vesting period. Upon vesting of the PSUs, holders are paid the accrued dividend equivalents based on the shares of common stock, if any, delivered in settlement of PSUs. Holders of RSUs and PSUs are not entitled to voting rights unless and until the awards have vested. A summary of restricted stock activity during the year ended December 31, 2017 is presented below: Restricted Stock Awards Restricted Stock Units Performance Share Units Shares Weighted- Average Grant-Date Fair Value Shares Weighted- Average Grant-Date Fair Value Shares Weighted-Average Grant-Date Fair Value Outstanding as of December 31, 2016 41,645 $ 27.85 158,723 $ 44.38 106,715 $ 59.48 Granted 51,258 27.31 159,220 31.20 61,550 45.37 Restrictions lapsed (vested) (1) (41,645 ) 27.85 (42,575 ) 49.55 (25,625 ) 77.65 Forfeited — — (5,123 ) 39.98 (2,059 ) 72.98 Outstanding as of December 31, 2017 51,258 27.31 270,245 35.88 140,581 49.79 _______________________________________________________________________________ (1) For performance share units, the shares represent the performance share units granted in 2014 , for which the three year performance period ended December 31, 2016 . Because the applicable performance goals were not met, no common shares were delivered in settlement of these units. The 2017 , 2016 and 2015 weighted-average grant date fair value for RSAs was $27.31 , $27.85 , and $61.54 , for RSUs was $31.20 , $36.00 , and $61.60 , and for PSUs was $45.37 , $40.62 , and $91.13 , respectively. Selected amounts pertaining to restricted stock awards that vested are as follows: Year ended December 31, 2017 2016 2015 (in millions) Actual tax benefit realized from restricted stock vested $ 1 $ 1 $ 1 Fair value of restricted stock vested $ 2 $ 2 $ 5 Compensation Cost Compensation cost is recorded primarily in selling, general and administrative expenses. The following table summarizes stock-based compensation costs and related income tax benefits. Year ended December 31, 2017 2016 2015 (in millions) Stock-based compensation expense $ 17 $ 19 $ 17 Income tax benefit (6 ) (7 ) (6 ) Stock-based compensation expense, net of income taxes $ 11 $ 12 $ 11 As of December 31, 2017 , pre-tax unrecognized compensation cost was $14 million for stock options, which will be recognized over a weighted-average period of 1.8 years, $6 million for RSAs and RSUs, which will be recognized over a weighted-average period of 1.8 years, and $3 million for PSUs, which will be recognized over a weighted-average period of 1.8 years. Excess tax benefits realized from the vesting of restricted stock or stock option exercises are recognized as an income tax benefit in our consolidated statements of operations and are required to be reported as an operating cash inflow rather than a reduction of taxes paid. The excess tax benefits in 2017 , 2016 and 2015 were $1 million , zero , and $2 million , respectively.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Litigation West Fertilizer Co. On April 17, 2013, there was a fire and explosion at the West Fertilizer Co. fertilizer storage and distribution facility in West, Texas. According to published reports, 15 people were killed and approximately 200 people were injured in the incident, and the fire and explosion damaged or destroyed a number of homes and buildings around the facility. Various subsidiaries of CF Industries Holdings, Inc. (the CF Entities) have been named as defendants along with other companies in lawsuits filed in 2013, 2014 and 2015 in the District Court of McLennan County, Texas by the City of West, individual residents of the County and other parties seeking recovery for damages allegedly sustained as a result of the explosion. The cases have been consolidated for discovery and pretrial proceedings in the District Court of McLennan County under the caption "In re: West Explosion Cases." The two-year statute of limitations expired on April 17, 2015. As of that date, over 400 plaintiffs had filed claims, including at least 9 entities, 325 individuals, and 80 insurance companies. Plaintiffs allege various theories of negligence, strict liability, and breach of warranty under Texas law. Although we do not own or operate the facility or directly sell our products to West Fertilizer Co., products that the CF Entities have manufactured and sold to others have been delivered to the facility and may have been stored at the West facility at the time of the incident. The Court granted in part and denied in part the CF Entities' Motions for Summary Judgment in August 2015. Over one hundred sixty cases have been resolved pursuant to confidential settlements that have been or we expect will be fully funded by insurance. The remaining cases are in various stages of discovery and pre-trial proceedings. The next trial is expected to be scheduled for later in 2018. We believe we have strong legal and factual defenses and intend to continue defending the CF Entities vigorously in the pending lawsuits. The Company cannot provide a range of reasonably possible loss due to the lack of damages discovery for many of the remaining claims and the uncertain nature of this litigation, including uncertainties around the potential allocation of responsibility by a jury to other defendants or responsible third parties. The recognition of a potential loss in the future in the West Fertilizer Co. litigation could negatively affect our results in the period of recognition. However, based upon currently available information, including available insurance coverage, we do not believe that this litigation will have a material adverse effect on our consolidated financial position, results of operations or cash flows. Other Litigation From time to time, we are subject to ordinary, routine legal proceedings related to the usual conduct of our business, including proceedings regarding public utility and transportation rates, environmental matters, taxes and permits relating to the operations of our various plants and facilities. Based on the information available as of the date of this filing, we believe that the ultimate outcome of these routine matters will not have a material adverse effect on our consolidated financial position, results of operations or cash flows. Environmental Louisiana Environmental Matters Clean Air Act—Ozone Nonattainment Designation Our Donaldsonville nitrogen complex is located in a five-parish region near Baton Rouge, Louisiana. On December 15, 2016, the EPA redesignated the Baton Rouge Nonattainment Area as "attainment" with respect to the 2008 8-hour ozone national ambient air quality standard (NAAQS). However, based on 2013-2015 air quality monitoring data, the State of Louisiana recommended that the EPA designate the Baton Rouge area as "non-attainment" pursuant to the updated 2015 8-hour ozone standard. On December 20, 2017, the EPA notified the state of Louisiana that it intends to designate the Baton Rouge area as non-attainment for the 2015 ozone standard. On January 5, 2018, the EPA published notice of a public comment period with respect to the proposed attainment/non-attainment designations of certain air quality regions, including the Baton Rouge area. Designation of the Baton Rouge area as nonattainment with respect to the 2015 ozone standard could result in more stringent air pollution emissions limits for our existing operation and would subject our facilities to more stringent requirements to obtain approvals for plant expansions, or could make it difficult to obtain such approvals. Florida Environmental Matters On March 17, 2014, we completed the sale of our phosphate mining and manufacturing business, which was located in Florida, to Mosaic. Pursuant to the terms of the definitive agreement executed in October 2013, Mosaic assumed the following environmental matters and we agreed to indemnify Mosaic with respect to losses arising out of the matters below, subject to a maximum indemnification cap and the other terms of the definitive agreement. Clean Air Act Notice of Violation We received a Notice of Violation (NOV) from the EPA by letter dated June 16, 2010, alleging that we violated the Prevention of Significant Deterioration (PSD) Clean Air Act regulations relating to certain projects undertaken at the former Plant City, Florida facility's sulfuric acid plants. This NOV further alleges that the actions that are the basis for the alleged PSD violations also resulted in violations of Title V air operating permit regulations. Finally, the NOV alleges that we failed to comply with certain compliance dates established by hazardous air pollutant regulations for phosphoric acid manufacturing plants and phosphate fertilizer production plants. We had several meetings with the EPA with respect to this matter prior to our sale of the phosphate mining and manufacturing business in March 2014. We and Mosaic have separately had continued discussions with the EPA subsequent to our sale of the phosphate mining and manufacturing business with respect to this matter. We do not know at this time if this matter will be settled prior to initiation of formal legal action. We cannot estimate the potential penalties, fines or other expenditures, if any, that may result from the Clean Air Act NOV and, therefore, we cannot determine if the ultimate outcome of this matter will have a material impact on our consolidated financial position, results of operations or cash flows. EPCRA/CERCLA Notice of Violation By letter dated July 6, 2010, the EPA issued a NOV to us alleging violations of Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA) in connection with the former Plant City facility. EPCRA requires annual reports to be submitted with respect to the use of certain toxic chemicals. The NOV also included an allegation that we violated Section 304 of EPCRA and Section 103 of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) by failing to file a timely notification relating to the release of hydrogen fluoride above applicable reportable quantities. We do not know at this time if this matter will be settled prior to initiation of formal legal action. We do not expect that penalties or fines, if any, that may arise out of the EPCRA/CERCLA matter will have a material impact on our consolidated financial position, results of operations or cash flows. Other CERCLA/Remediation Matters From time to time, we receive notices from governmental agencies or third parties alleging that we are a potentially responsible party at certain cleanup sites under CERCLA or other environmental cleanup laws. In 2011, we received a notice from the Idaho Department of Environmental Quality (IDEQ) that alleged that we were a potentially responsible party for the cleanup of a former phosphate mine site we owned in the late 1950s and early 1960s located in Georgetown Canyon, Idaho. The current owner of the property and a former mining contractor received similar notices for the site. In 2014, we and the current property owner entered into a Consent Order with IDEQ and the U.S. Forest Service to conduct a remedial investigation and feasibility study of the site. In 2015, we and several other parties received a notice that the U.S. Department of the Interior and other trustees intend to undertake a natural resource damage assessment for a group of former phosphate mines in southeast Idaho, including the former Georgetown Canyon mine. We are not able to estimate at this time our potential liability, if any, with respect to the cleanup of the site or a possible claim for natural resource damages. However, based on currently available information, we do not expect the remedial or financial obligations to which we may be subject involving this or other cleanup sites will have a material adverse effect on our consolidated financial position, results of operations or cash flows.

Segment Disclosures

Segment Disclosures	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Segment Disclosures	Segment Disclosures Our reportable segments consist of ammonia, granular urea, UAN, AN, and Other. These segments are differentiated by products. Our management uses gross margin to evaluate segment performance and allocate resources. Total other operating costs and expenses (consisting of selling, general and administrative expenses and other operating—net) and non-operating expenses (interest and income taxes) are centrally managed and are not included in the measurement of segment profitability reviewed by management. Our assets, with the exception of goodwill, are not monitored by or reported to our chief operating decision maker by segment; therefore, we do not present total assets by segment. Goodwill by segment is presented in Note 6—Goodwill and Other Intangible Assets . Segment data for sales, cost of sales and gross margin for 2017 , 2016 and 2015 are presented in the tables below. Ammonia Granular Urea (1) UAN (1) AN (1) Other (1) Consolidated (in millions) Year ended December 31, 2017 Net sales $ 1,209 $ 971 $ 1,134 $ 497 $ 319 $ 4,130 Cost of sales 1,071 856 1,055 446 272 3,700 Gross margin $ 138 $ 115 $ 79 $ 51 $ 47 430 Total other operating costs and expenses 210 Equity in earnings of operating affiliates 9 Operating earnings $ 229 Year ended December 31, 2016 Net sales $ 981 $ 831 $ 1,196 $ 411 $ 266 $ 3,685 Cost of sales 715 584 920 409 217 2,845 Gross margin $ 266 $ 247 $ 276 $ 2 $ 49 840 Total other operating costs and expenses 561 Equity in losses of operating affiliates (145 ) Operating earnings $ 134 Year ended December 31, 2015 Net sales $ 1,523 $ 788 $ 1,480 $ 294 $ 223 $ 4,308 Cost of sales 884 469 955 291 162 2,761 Gross margin $ 639 $ 319 $ 525 $ 3 $ 61 1,547 Total other operating costs and expenses 319 Equity in losses of operating affiliates (35 ) Operating earnings $ 1,193 _______________________________________________________________________________ (1) The cost of ammonia that is upgraded into other products is transferred at cost into the upgraded product results. Ammonia Granular Urea UAN AN Other Corporate Consolidated (in millions) Depreciation and amortization Year ended December 31, 2017 $ 183 $ 246 $ 265 $ 85 $ 57 $ 47 $ 883 Year ended December 31, 2016 $ 96 $ 112 $ 247 $ 93 $ 46 $ 84 $ 678 Year ended December 31, 2015 $ 95 $ 51 $ 192 $ 66 $ 35 $ 41 $ 480 Enterprise-wide data by geographic region is as follows: Year ended December 31, 2017 2016 2015 (in millions) Sales by geographic region (based on destination of shipments): United States $ 2,851 $ 2,728 $ 3,485 Foreign: Canada 352 349 490 United Kingdom 427 394 153 Other foreign 500 214 180 Total foreign 1,279 957 823 Consolidated $ 4,130 $ 3,685 $ 4,308 December 31, 2017 2016 2015 (in millions) Property, plant and equipment—net by geographic region: United States $ 7,921 $ 8,444 $ 7,202 Foreign: Canada 551 523 497 United Kingdom 703 685 840 Total foreign 1,254 1,208 1,337 Consolidated $ 9,175 $ 9,652 $ 8,539 Our principal customers are cooperatives, independent fertilizer distributors and industrial users. In 2017 and 2016 , CHS accounted for approximately 11% and 12% of our consolidated net sales, respectively. See Note 16—Noncontrolling Interests for additional information. None of our other customers accounted for more than ten percent of our consolidated sales in 2015 .

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information The following provides additional information relating to cash flow activities: Year ended December 31, 2017 2016 2015 (in millions) Cash paid during the year for Interest—net of interest capitalized $ 311 $ 144 $ 100 Income taxes—net of refunds (807 ) (110 ) 435 Supplemental disclosure of noncash investing and financing activities: Change in capitalized expenditures in accounts payable and accrued expenses (179 ) (263 ) 258 Change in capitalized expenditures in other liabilities — (55 ) 6 Change in noncontrolling interests in other liabilities — 8 — Change in accrued share repurchases — — (29 )

Asset Retirement Obligations

Asset Retirement Obligations	12 Months Ended
	Dec. 31, 2017
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligations	Asset Retirement Obligations Asset retirement obligations (AROs) are legal obligations associated with the retirement of long-lived assets that result from the acquisition, construction, development or normal operation of such assets. AROs are initially recognized as incurred when sufficient information exists to estimate fair value. We have AROs at our nitrogen fertilizer manufacturing complexes and at our distribution and storage facilities that are conditional upon cessation of operations. These AROs include certain decommissioning activities as well as the removal and disposal of certain chemicals, waste materials, structures, equipment, vessels, piping and storage tanks. Also included are reclamation of land and the closure of certain effluent ponds. The most recent estimate of the aggregate cost of these AROs expressed in 2017 dollars is $73 million . We have not recorded a liability for these conditional AROs as of December 31, 2017 because we do not believe there is currently a reasonable basis for estimating a date or range of dates of cessation of operations at our nitrogen fertilizer manufacturing facilities or our distribution and storage facilities, which is necessary in order to estimate fair value. In reaching this conclusion, we considered the historical performance of each complex or facility and have taken into account factors such as planned maintenance, asset replacements and upgrades of plant and equipment, which if conducted as in the past, can extend the physical lives of our nitrogen manufacturing facilities and our distribution and storage facilities indefinitely. We also considered the possibility of changes in technology, risk of obsolescence, and availability of raw materials in arriving at our conclusion.

Leases

Leases	12 Months Ended
	Dec. 31, 2017
Leases, Operating [Abstract]
Leases	Leases We have operating leases for certain property and equipment under various noncancelable agreements, the most significant of which are rail car leases and barge tow charters for the distribution of our products. The rail car leases currently have minimum terms ranging from one to eleven years and the barge charter commitments range from approximately one to seven years . We also have terminal and warehouse storage agreements for our distribution system, some of which contain minimum throughput requirements. The storage agreements contain minimum terms generally ranging from one to five years and commonly contain automatic annual renewal provisions thereafter unless canceled by either party. Future minimum payments under noncancelable operating leases with initial or remaining noncancelable lease terms in excess of one year as of December 31, 2017 are shown below. Operating Lease Payments (in millions) 2018 $ 83 2019 77 2020 57 2021 47 2022 36 Thereafter 76 $ 376 Total rent expense for cancelable and noncancelable operating leases was $125 million for 2017 , $111 million for 2016 and $100 million for 2015 .

Quarterly Data-Unaudited

Quarterly Data-Unaudited	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Data-Unaudited	Quarterly Data—Unaudited The following tables present the unaudited quarterly results of operations for the eight quarters ended December 31, 2017 . This quarterly information has been prepared on the same basis as the consolidated financial statements and, in the opinion of management, reflects all adjustments necessary for the fair representation of the information for the periods presented. This data should be read in conjunction with the audited consolidated financial statements and related disclosures. Operating results for any quarter apply to that quarter only and are not necessarily indicative of results for any future period. Three months ended, March 31 June 30 September 30 December 31 Full Year (in millions, except per share amounts) 2017 Net sales $ 1,037 $ 1,124 $ 870 $ 1,099 $ 4,130 Gross margin 106 172 9 143 430 Unrealized (losses) gains on natural gas derivatives (1) (53 ) (18 ) 7 3 (61 ) Net (loss) earnings attributable to common stockholders (2) (23 ) 3 (87 ) 465 358 Net (loss) earnings per share attributable to common stockholders (2) Basic (3) (0.10 ) 0.01 (0.37 ) 1.99 1.53 Diluted (3) (0.10 ) 0.01 (0.37 ) 1.98 1.53 2016 Net sales $ 1,004 $ 1,134 $ 680 $ 867 $ 3,685 Gross margin 217 527 2 94 840 Unrealized (losses) gains on natural gas derivatives (1) (21 ) 211 (21 ) 91 260 Net earnings (loss) attributable to common stockholders (4) 26 47 (30 ) (320 ) (277 ) Net earnings (loss) per share attributable to common stockholders (4) Basic (3) 0.11 0.20 (0.13 ) (1.38 ) (1.19 ) Diluted (3) 0.11 0.20 (0.13 ) (1.38 ) (1.19 ) _______________________________________________________________________________ (1) Amounts represent pre-tax unrealized (losses) gains on natural gas derivatives, which are included in gross margin. See Note 14—Derivative Financial Instruments for additional information. (2) For the three months ended December 31, 2017 , net earnings attributable to common stockholders includes the Tax Reform impact of $491 million that is included in income tax benefit, and net earnings per share attributable to common stockholders, basic and diluted, include the per share impact of $2.09 . See Note 9—Income Taxes for additional information. (3) The sum of the four quarters is not necessarily the same as the total for the year. (4) For the three months ended September 30, 2016, net loss attributable to common stockholders includes an after-tax loss of $14 million (pre-tax loss of $22 million ) resulting from recognizing the value of an embedded derivative liability to reflect our credit evaluation that is included in other operating—net, and net loss per share attributable to common stockholders, basic and diluted, include the per share impact of $0.06 . See Note 8—Fair Value Measurements and Note 16—Noncontrolling Interests for additional information. For the three months ended December 31, 2016 , net loss attributable to common stockholders includes an after-tax impairment charge of $134 million on our equity method investment in PLNL that is included in equity in (loss) earnings of operating affiliates, and net loss per share attributable to common stockholders, basic and diluted, include the per share impact of $0.57 . See Note 7—Equity Method Investments and Note 8—Fair Value Measurements for additional information.

Condensed Consolidating Financi

Condensed Consolidating Financial Statements	12 Months Ended
	Dec. 31, 2017
Condensed Consolidating Financial Statements
Condensed Consolidating Financial Statements	Condensed Consolidating Financial Statements The following condensed consolidating financial information is presented in accordance with SEC Regulation S-X Rule 3-10, Financial statements of guarantors and issuers of guaranteed securities registered or being registered , and relates to (i) the senior notes due 2018, 2020, 2023, 2034, 2043 and 2044 (described in Note 11—Financing Agreements and referred to in this report as the Public Senior Notes) issued by CF Industries, Inc. (CF Industries), a 100% owned subsidiary of CF Industries Holdings, Inc. (Parent), and guarantees of the Public Senior Notes by Parent and by CFE and CFS (the Subsidiary Guarantors), which are 100% owned subsidiaries of Parent, and (ii) debt securities of CF Industries (Other Debt Securities), and guarantees thereof by Parent and the Subsidiary Guarantors, that may be offered and sold from time to time under registration statements that may be filed by Parent, CF Industries and the Subsidiary Guarantors with the SEC. In the event that a subsidiary of Parent, other than CF Industries, becomes a borrower or a guarantor under the Revolving Credit Agreement (or any renewal, replacement or refinancing thereof), such subsidiary would be required to become a guarantor of the Public Senior Notes, provided that such requirement will no longer apply with respect to the Public Senior Notes due 2023, 2034, 2043 and 2044 following the repayment of the Public Senior Notes due 2018 and 2020 or the subsidiaries of Parent, other than CF Industries, otherwise becoming no longer subject to such a requirement to guarantee the Public Senior Notes due 2018 and 2020. CFE and CFS became guarantors of the Public Senior Notes as a result of this requirement on November 21, 2016. All of the guarantees of the Public Senior Notes are, and we have assumed for purposes of this presentation of condensed consolidating financial information that the guarantees of any Other Debt Securities would be, full and unconditional (as such term is defined in SEC Regulation S-X Rule 3-10(h)) and joint and several. The guarantee of a Subsidiary Guarantor will be automatically released with respect to a series of the Public Senior Notes (1) upon the release, discharge or termination of such Subsidiary Guarantor’s guarantee of the Revolving Credit Agreement (or any renewal, replacement or refinancing thereof), (2) upon legal defeasance with respect to the Public Senior Notes of such series or satisfaction and discharge of the indenture with respect to such series of Public Senior Notes or (3) in the case of the Public Senior Notes due 2023, 2034, 2043 and 2044, upon the later to occur of (a) the discharge, termination or release of, or the release of such Subsidiary Guarantor from its obligations under, such Subsidiary Guarantor’s guarantee of the Public Senior Notes due 2018, including, without limitation, any such discharge, termination or release as a result of retirement, discharge or legal or covenant defeasance of, or satisfaction and discharge of the supplemental indenture governing, the Public Senior Notes due 2018, and (b) the discharge, termination or release of, or the release of such Subsidiary Guarantor from its obligations under, such Subsidiary Guarantor’s guarantee of the Public Senior Notes due 2020, including, without limitation, any such discharge, termination or release as a result of retirement, discharge or legal or covenant defeasance of, or satisfaction and discharge of the supplemental indenture governing, the Public Senior Notes due 2020. For purposes of the presentation of condensed consolidating financial information, the subsidiaries of Parent other than CF Industries, CFE and CFS are referred to as the Non-Guarantors. Presented below are condensed consolidating statements of operations and statements of cash flows for Parent, CF Industries, the Subsidiary Guarantors and the Non-Guarantors for the years ended December 31, 2017 , 2016 and 2015 and condensed consolidating balance sheets for Parent, CF Industries, the Subsidiary Guarantors and the Non-Guarantors as of December 31, 2017 and 2016 . The condensed consolidating financial information presented below is not necessarily indicative of the financial position, results of operations, comprehensive income (loss) or cash flows of Parent, CF Industries, the Subsidiary Guarantors or the Non-Guarantors on a stand-alone basis. In these condensed consolidating financial statements, investments in subsidiaries are presented under the equity method, in which our investments are recorded at cost and adjusted for our ownership share of a subsidiary's cumulative results of operations, distributions and other equity changes, and the eliminating entries reflect primarily intercompany transactions such as sales, accounts receivable and accounts payable and the elimination of equity investments and earnings of subsidiaries. Two of our consolidated entities have made elections to be taxed as partnerships for U.S. federal income tax purposes and are included in the non-guarantor column. Due to the partnership tax treatment, these subsidiaries do not record taxes on their financial statements. The tax provision pertaining to the income of these partnerships, plus applicable deferred tax balances are reflected on the financial statements of the parent company owner that is included in the subsidiary guarantors column in the following financial information. Liabilities related to benefit plan obligations are reflected on the legal entity that funds the obligation, while the benefit plan expense is included on the legal entity to which the employee provides services. In 2017, CF Holdings and its U.S. domestic subsidiaries entered into a Tax Matters Agreement (the "Agreement") that provides for the allocation of and reimbursement for the payment of U.S. federal and state income tax liabilities among corporations included in the consolidated U.S. federal income tax returns (the "Consolidated Group Members"). The Agreement relates to tax years commencing with the tax year ending December 31, 2010. The financial statements for the year ended December 31, 2017 reflect the impact on the income tax (benefit) provision and intercompany accounts resulting from the allocation of federal income tax liabilities among Consolidated Group Members for tax years through December 31, 2016. Condensed Consolidating Statement of Operations Year ended December 31, 2017 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net sales $ — $ 442 $ 3,257 $ 3,380 $ (2,949 ) $ 4,130 Cost of sales — 278 3,386 2,985 (2,949 ) 3,700 Gross margin — 164 (129 ) 395 — 430 Selling, general and administrative expenses 4 (4 ) 113 79 — 192 Other operating—net — 2 3 13 — 18 Total other operating costs and expenses 4 (2 ) 116 92 — 210 Equity in (loss) earnings of operating affiliates — (3 ) — 12 — 9 Operating (loss) earnings (4 ) 163 (245 ) 315 — 229 Interest expense — 318 37 5 (45 ) 315 Interest income — (33 ) (11 ) (13 ) 45 (12 ) Loss on debt extinguishment — 53 — — — 53 Net loss (earnings) of wholly owned subsidiaries 361 1,091 (204 ) — (1,248 ) — Other non-operating—net — — (1 ) (1 ) — (2 ) (Loss) earnings before income taxes (365 ) (1,266 ) (66 ) 324 1,248 (125 ) Income tax (benefit) provision (723 ) (905 ) 1,037 16 — (575 ) Net earnings (loss) 358 (361 ) (1,103 ) 308 1,248 450 Less: Net earnings attributable to noncontrolling interests — — — 92 — 92 Net earnings (loss) attributable to common stockholders $ 358 $ (361 ) $ (1,103 ) $ 216 $ 1,248 $ 358 Condensed Consolidating Statement of Comprehensive Income (Loss) Year ended December 31, 2017 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net earnings (loss) $ 358 $ (361 ) $ (1,103 ) $ 308 $ 1,248 $ 450 Other comprehensive income 135 135 91 130 (356 ) 135 Comprehensive income (loss) 493 (226 ) (1,012 ) 438 892 585 Less: Comprehensive income attributable to noncontrolling interests — — — 92 — 92 Comprehensive income (loss) attributable to common stockholders $ 493 $ (226 ) $ (1,012 ) $ 346 $ 892 $ 493 Condensed Consolidating Statement of Operations Year ended December 31, 2016 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net sales $ — $ 362 $ 2,932 $ 2,939 $ (2,548 ) $ 3,685 Cost of sales — 207 2,806 2,380 (2,548 ) 2,845 Gross margin — 155 126 559 — 840 Selling, general and administrative expenses 4 9 105 56 — 174 Transaction costs (46 ) — 223 2 — 179 Other operating—net — 7 30 171 — 208 Total other operating costs and expenses (42 ) 16 358 229 — 561 Equity in loss of operating affiliates — — — (145 ) — (145 ) Operating earnings (losses) 42 139 (232 ) 185 — 134 Interest expense — 347 85 (155 ) (77 ) 200 Interest income — (49 ) (8 ) (25 ) 77 (5 ) Loss on debt extinguishment — 167 — — — 167 Net loss (earnings) of wholly owned subsidiaries 304 92 (315 ) — (81 ) — Other non-operating—net — — — (2 ) — (2 ) (Loss) earnings before income taxes (262 ) (418 ) 6 367 81 (226 ) Income tax provision (benefit) 15 (114 ) 18 13 — (68 ) Net (loss) earnings (277 ) (304 ) (12 ) 354 81 (158 ) Less: Net earnings attributable to noncontrolling interest — — — 119 — 119 Net (loss) earnings attributable to common stockholders $ (277 ) $ (304 ) $ (12 ) $ 235 $ 81 $ (277 ) Condensed Consolidating Statement of Comprehensive (Loss) Income Year ended December 31, 2016 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net (loss) earnings $ (277 ) $ (304 ) $ (12 ) $ 354 $ 81 $ (158 ) Other comprehensive loss (148 ) (148 ) (68 ) (134 ) 350 (148 ) Comprehensive (loss) income (425 ) (452 ) (80 ) 220 431 (306 ) Less: Comprehensive income attributable to noncontrolling interest — — — 119 — 119 Comprehensive (loss) income attributable to common stockholders $ (425 ) $ (452 ) $ (80 ) $ 101 $ 431 $ (425 ) Condensed Consolidating Statement of Operations Year ended December 31, 2015 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net sales $ — $ 462 $ 4,101 $ 2,464 $ (2,719 ) $ 4,308 Cost of sales — 361 3,186 1,933 (2,719 ) 2,761 Gross margin — 101 915 531 — 1,547 Selling, general and administrative expenses 4 8 120 38 — 170 Transaction costs 46 — 7 4 — 57 Other operating—net — (8 ) 29 71 — 92 Total other operating costs and expenses 50 — 156 113 — 319 Equity in loss of operating affiliates — — — (35 ) — (35 ) Operating (loss) earnings (50 ) 101 759 383 — 1,193 Interest expense — 285 14 (70 ) (96 ) 133 Interest income — (69 ) (25 ) (4 ) 96 (2 ) Net earnings of wholly owned subsidiaries (731 ) (802 ) (403 ) — 1,936 — Other non-operating—net — — 5 (1 ) — 4 Earnings before income taxes and equity in earnings of non-operating affiliates 681 687 1,168 458 (1,936 ) 1,058 Income tax (benefit) provision (19 ) (44 ) 385 74 — 396 Equity in earnings of non-operating affiliates—net of taxes — — 10 62 — 72 Net earnings 700 731 793 446 (1,936 ) 734 Less: Net earnings attributable to noncontrolling interest — — — 34 — 34 Net earnings attributable to common stockholders $ 700 $ 731 $ 793 $ 412 $ (1,936 ) $ 700 Condensed Consolidating Statement of Comprehensive Income Year ended December 31, 2015 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net earnings $ 700 $ 731 $ 793 $ 446 $ (1,936 ) $ 734 Other comprehensive loss (90 ) (90 ) (98 ) (96 ) 284 (90 ) Comprehensive income 610 641 695 350 (1,652 ) 644 Less: Comprehensive income attributable to noncontrolling interest — — — 34 — 34 Comprehensive income attributable to common stockholders $ 610 $ 641 $ 695 $ 316 $ (1,652 ) $ 610 Condensed Consolidating Balance Sheet December 31, 2017 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations and Reclassifications Consolidated (in millions) Assets Current assets: Cash and cash equivalents $ — $ 15 $ 388 $ 432 $ — $ 835 Accounts and notes receivable—net 743 1,553 2,670 768 (5,427 ) 307 Inventories — 4 104 167 — 275 Prepaid income taxes — — 33 — — 33 Other current assets — — 10 5 — 15 Total current assets 743 1,572 3,205 1,372 (5,427 ) 1,465 Property, plant and equipment—net — — 123 9,052 — 9,175 Deferred income taxes — 8 — — (8 ) — Investments in affiliates 4,055 8,411 6,490 108 (18,956 ) 108 Goodwill — — 2,063 308 — 2,371 Other assets — 85 82 453 (276 ) 344 Total assets $ 4,798 $ 10,076 $ 11,963 $ 11,293 $ (24,667 ) $ 13,463 Liabilities and Equity Current liabilities: Accounts and notes payable and accrued expenses $ 1,219 $ 1,314 $ 2,658 $ 708 $ (5,427 ) $ 472 Income taxes payable — — — 2 — 2 Customer advances — — 89 — — 89 Other current liabilities — — 14 3 — 17 Total current liabilities 1,219 1,314 2,761 713 (5,427 ) 580 Long-term debt — 4,692 198 78 (276 ) 4,692 Deferred income taxes — — 876 179 (8 ) 1,047 Other liabilities — 16 243 201 — 460 Equity: Stockholders' equity: Preferred stock — — — — — — Common stock 2 — — 4,738 (4,738 ) 2 Paid-in capital 1,397 1,854 9,505 1,783 (13,142 ) 1,397 Retained earnings 2,443 2,463 (1,432 ) 709 (1,740 ) 2,443 Treasury stock — — — — — — Accumulated other comprehensive loss (263 ) (263 ) (180 ) (221 ) 664 (263 ) Total stockholders' equity 3,579 4,054 7,893 7,009 (18,956 ) 3,579 Noncontrolling interests — — (8 ) 3,113 — 3,105 Total equity 3,579 4,054 7,885 10,122 (18,956 ) 6,684 Total liabilities and equity $ 4,798 $ 10,076 $ 11,963 $ 11,293 $ (24,667 ) $ 13,463 Condensed Consolidating Balance Sheet December 31, 2016 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations and Reclassifications Consolidated (in millions) Assets Current assets: Cash and cash equivalents $ — $ 36 $ 878 $ 250 $ — $ 1,164 Restricted cash — — — 5 — 5 Accounts and notes receivable—net 20 1,259 1,418 495 (2,956 ) 236 Inventories — — 164 175 — 339 Prepaid income taxes — — 839 2 — 841 Other current assets — — 59 11 — 70 Total current assets 20 1,295 3,358 938 (2,956 ) 2,655 Property, plant and equipment—net — — 131 9,521 — 9,652 Investments in affiliates 3,711 9,370 6,019 139 (19,100 ) 139 Due from affiliates 571 — — — (571 ) — Goodwill — — 2,064 281 — 2,345 Other assets — 85 101 385 (231 ) 340 Total assets $ 4,302 $ 10,750 $ 11,673 $ 11,264 $ (22,858 ) $ 15,131 Liabilities and Equity Current liabilities: Accounts and notes payable and accrued expenses $ 954 $ 418 $ 1,505 $ 717 $ (2,956 ) $ 638 Income taxes payable — — — 1 — 1 Customer advances — — 42 — — 42 Other current liabilities — — 5 — — 5 Total current liabilities 954 418 1,552 718 (2,956 ) 686 Long-term debt — 5,903 39 67 (231 ) 5,778 Deferred income taxes — 90 1,374 166 — 1,630 Due to affiliates — 571 — — (571 ) — Other liabilities — 59 270 216 — 545 Equity: Stockholders' equity: Preferred stock — — — — — — Common stock 2 — — 4,383 (4,383 ) 2 Paid-in capital 1,380 (13 ) 9,045 2,246 (11,278 ) 1,380 Retained earnings 2,365 4,120 (329 ) 668 (4,459 ) 2,365 Treasury stock (1 ) — — — — (1 ) Accumulated other comprehensive loss (398 ) (398 ) (271 ) (351 ) 1,020 (398 ) Total stockholders' equity 3,348 3,709 8,445 6,946 (19,100 ) 3,348 Noncontrolling interests — — (7 ) 3,151 — 3,144 Total equity 3,348 3,709 8,438 10,097 (19,100 ) 6,492 Total liabilities and equity $ 4,302 $ 10,750 $ 11,673 $ 11,264 $ (22,858 ) $ 15,131 Condensed Consolidating Statement of Cash Flows Year ended December 31, 2017 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Operating Activities: Net earnings (loss) $ 358 $ (361 ) $ (1,103 ) $ 308 $ 1,248 $ 450 Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities: Depreciation and amortization — 13 22 848 — 883 Deferred income taxes — — (599 ) (2 ) — (601 ) Stock-based compensation expense 17 — — — — 17 Unrealized net loss on natural gas derivatives — — 51 10 — 61 Loss on embedded derivative — — 4 — — 4 Gain on sale of equity method investment — — — (14 ) — (14 ) Loss on debt extinguishment — 53 — — — 53 Loss on disposal of property, plant and equipment — — — 3 — 3 Undistributed losses (earnings) of affiliates—net 361 1,091 (204 ) 3 (1,248 ) 3 Changes in: Intercompany accounts receivable/accounts payable—net (736 ) (1,297 ) 1,527 506 — — Accounts receivable—net — — (51 ) (6 ) — (57 ) Inventories — (4 ) 60 (16 ) — 40 Accrued and prepaid income taxes (1 ) (60 ) 1,217 (347 ) — 809 Accounts and notes payable and accrued expenses — 228 27 (256 ) — (1 ) Customer advances — — 48 — — 48 Other—net — (5 ) (32 ) (30 ) — (67 ) Net cash (used in) provided by operating activities (1 ) (342 ) 967 1,007 — 1,631 Investing Activities: Additions to property, plant and equipment — — (12 ) (461 ) — (473 ) Proceeds from sale of property, plant and equipment — — — 20 — 20 Proceeds from sale of equity method investment — — — 16 — 16 Distributions received from unconsolidated affiliates — — 179 (165 ) — 14 Proceeds from sale of auction rate securities — 9 — — — 9 Withdrawals from restricted cash funds — — — 5 — 5 Other—net — — — 1 — 1 Net cash provided by (used in) investing activities — 9 167 (584 ) — (408 ) Financing Activities: Long-term debt—net — (125 ) 150 (25 ) — — Payments of long-term borrowings — (1,148 ) — — — (1,148 ) Short-term debt—net 280 1,584 (1,870 ) 6 — — Payment to CHS related to credit provision — — (5 ) — — (5 ) Financing fees — (1 ) — — — (1 ) Dividends paid on common stock (280 ) — — (103 ) 103 (280 ) Distributions to noncontrolling interests — — — (131 ) — (131 ) Issuances of common stock under employee stock plans 1 — — — — 1 Dividends to/from affiliates — 2 101 — (103 ) — Net cash provided by (used in) financing activities 1 312 (1,624 ) (253 ) — (1,564 ) Effect of exchange rate changes on cash and cash equivalents — — — 12 — 12 (Decrease) increase in cash and cash equivalents — (21 ) (490 ) 182 — (329 ) Cash and cash equivalents at beginning of period — 36 878 250 — 1,164 Cash and cash equivalents at end of period $ — $ 15 $ 388 $ 432 $ — $ 835 Condensed Consolidating Statement of Cash Flows Year ended December 31, 2016 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Operating Activities: Net (loss) earnings $ (277 ) $ (304 ) $ (12 ) $ 354 $ 81 $ (158 ) Adjustments to reconcile net (loss) earnings to net cash provided by (used in) operating activities: Depreciation and amortization — 21 55 602 — 678 Deferred income taxes — — 740 (1 ) — 739 Stock-based compensation expense 18 — — 1 — 19 Unrealized net gain on natural gas derivatives — — (225 ) (35 ) — (260 ) Loss on embedded derivative — — 23 — — 23 Impairment of equity method investment in PLNL — — — 134 — 134 Loss on debt extinguishment — 167 — — — 167 Loss on disposal of property, plant and equipment — — 2 8 — 10 Undistributed losses (earnings) of affiliates—net 304 92 (315 ) 9 (81 ) 9 Changes in: Intercompany accounts receivable/accounts payable—net (4 ) (10 ) 308 (294 ) — — Accounts receivable—net — 44 (11 ) (15 ) — 18 Inventories — — (8 ) 1 — (7 ) Accrued and prepaid income taxes — — (682 ) 6 — (676 ) Accounts and notes payable and accrued expenses (8 ) (63 ) (12 ) 65 — (18 ) Customer advances — — (120 ) — — (120 ) Other—net — (6 ) (17 ) 82 — 59 Net cash provided by (used in) operating activities 33 (59 ) (274 ) 917 — 617 Investing Activities: Additions to property, plant and equipment — — (25 ) (2,186 ) — (2,211 ) Proceeds from sale of property, plant and equipment — — 4 10 — 14 Withdrawals from restricted cash funds — — — 18 — 18 Investments in unconsolidated affiliates — (44 ) (649 ) — 693 — Other—net — 6 — (4 ) — 2 Net cash used in investing activities — (38 ) (670 ) (2,162 ) 693 (2,177 ) Financing Activities: Long-term debt—net — 125 — (125 ) — — Proceeds from long-term borrowings — 1,244 — — — 1,244 Payments of long-term borrowings — (1,170 ) — — — (1,170 ) Short-term debt—net 106 (40 ) (371 ) 305 — — Proceeds from short-term borrowings — 150 — — — 150 Payments on short-term borrowings — (150 ) — — — (150 ) Payment to CHS related to credit provision — — (5 ) — — (5 ) Financing fees — (31 ) — — — (31 ) Dividends paid on common stock (280 ) (140 ) (140 ) (222 ) 502 (280 ) Issuance of noncontrolling interest in CFN — — — 2,800 — 2,800 Distributions to noncontrolling interest — — — (119 ) — (119 ) Distribution received for CHS strategic venture — — 2,000 (2,000 ) — — Dividends to/from affiliates 140 145 217 — (502 ) — Other—net — — — 693 (693 ) — Net cash (used in) provided by financing activities (34 ) 133 1,701 1,332 (693 ) 2,439 Effect of exchange rate changes on cash and cash equivalents — — — (1 ) — (1 ) (Decrease) increase in cash and cash equivalents (1 ) 36 757 86 — 878 Cash and cash equivalents at beginning of period 1 — 121 164 — 286 Cash and cash equivalents at end of period $ — $ 36 $ 878 $ 250 $ — $ 1,164 Condensed Consolidating Statement of Cash Flows Year ended December 31, 2015 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Operating Activities: Net earnings $ 700 $ 731 $ 793 $ 446 $ (1,936 ) $ 734 Adjustments to reconcile net earnings to net cash (used in) provided by operating activities: Depreciation and amortization — 14 19 447 — 480 Deferred income taxes — 17 75 (14 ) — 78 Stock-based compensation expense 16 — — 1 — 17 Unrealized net loss on natural gas and foreign currency derivatives — — 139 24 — 163 Gain on remeasurement of CF Fertilisers UK investment — — — (94 ) — (94 ) Impairment of equity method investment in PLNL — — — 62 — 62 Loss on sale of equity method investments — — — 43 — 43 Loss on disposal of property, plant and equipment — — — 21 — 21 Undistributed earnings of affiliates—net (732 ) (802 ) (402 ) (3 ) 1,936 (3 ) Due to / from affiliates—net 2 1 (135 ) 132 — — Changes in: Intercompany accounts receivable/accounts payable—net (1 ) (104 ) 96 9 — — Accounts receivable—net — (45 ) 50 (9 ) — (4 ) Inventories — — (38 ) (33 ) — (71 ) Accrued and prepaid income taxes 2 (11 ) (105 ) (34 ) — (148 ) Accounts and notes payable and accrued expenses 9 61 14 (42 ) — 42 Customer advances — — (164 ) — — (164 ) Other—net — 31 54 (34 ) — 51 Net cash (used in) provided by operating activities (4 ) (107 ) 396 922 — 1,207 Investing Activities: Additions to property, plant and equipment — — (26 ) (2,443 ) — (2,469 ) Proceeds from sale of property, plant and equipment — — — 12 — 12 Proceeds from sale of equity method investment — — — 13 — 13 Purchase of CF Fertilisers UK, net of cash acquired — — — (552 ) — (552 ) Withdrawals from restricted cash funds — — — 63 — 63 Other—net — (82 ) (44 ) 1 82 (43 ) Net cash used in investing activities — (82 ) (70 ) (2,906 ) 82 (2,976 ) Financing Activities: Proceeds from long-term borrowings — 1,000 — — — 1,000 Short-term debt—net 554 (870 ) (1,431 ) 1,747 — — Financing fees — (47 ) — — — (47 ) Dividends paid on common stock (282 ) (282 ) (282 ) (268 ) 832 (282 ) Dividends to/from affiliates 282 282 268 — (832 ) — Distributions to noncontrolling interest — — — (45 ) — (45 ) Purchases of treasury stock (556 ) — — — — (556 ) Shares withheld for taxes (1 ) — — — — (1 ) Issuances of common stock under employee stock plans 8 — — — — 8 Other—net — — — 82 (82 ) — Net cash provided by (used in) by financing activities 5 83 (1,445 ) 1,516 (82 ) 77 Effect of exchange rate changes on cash and cash equivalents — — — (19 ) — (19 ) Increase (decrease) in cash and cash equivalents 1 (106 ) (1,119 ) (487 ) — (1,711 ) Cash and cash equivalents at beginning of period — 106 1,240 651 — 1,997 Cash and cash equivalents at end of period $ 1 $ — $ 121 $ 164 $ — $ 286

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Event (Unaudited)	Subsequent Event On February 7, 2018, we announced that TNGP, the sole general partner of TNCLP and an indirect wholly owned subsidiary of CF Holdings, elected to exercise its right to purchase all of the 4,612,562 publicly traded common units of TNCLP on April 2, 2018, for a cash purchase price of $84.033 per unit in accordance with the terms of TNCLP’s partnership agreement. The purchase price of $84.033 per unit was determined under the terms of TNCLP’s partnership agreement as the average of the daily closing prices per common unit for the 20 consecutive trading days beginning with January 5, 2018 and ending with February 2, 2018. The purchase price of all of the 4,612,562 publicly traded common units of TNCLP is approximately $390 million . We intend to fund the purchase with cash on hand. As of the April 2, 2018 purchase date, all rights of the holders of the units will terminate, with the exception of the right to receive payment of the purchase price. Upon completion of the purchase, we will own 100 percent of the general and limited partnership interests of TNCLP, and the common units representing limited partner interests will cease to be publicly traded or listed on the NYSE.

Summary of Significant Accoun35

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Consolidation and Noncontrolling Interest	Consolidation and Noncontrolling Interests The consolidated financial statements of CF Holdings include the accounts of CF Industries and all majority-owned subsidiaries. All significant intercompany transactions and balances have been eliminated. TNCLP is a master limited partnership that is consolidated in the financial statements of CF Holdings. TNCLP owns the nitrogen fertilizer manufacturing facility in Verdigris, Oklahoma. We own approximately 75.3% of TNCLP and outside investors own the remaining approximately 24.7% . Partnership interests in TNCLP are traded on the New York Stock Exchange (NYSE). As a result, TNCLP files separate financial reports with the Securities and Exchange Commission (SEC). The outside investors' limited partnership interests in the partnership are included in noncontrolling interests in our consolidated financial statements. This noncontrolling interest represents the noncontrolling unitholders' interest in the partners' capital of TNCLP. On February 7, 2018, we announced that TNGP elected to exercise its right to purchase all of the 4,612,562 publicly traded common units of TNCLP on April 2, 2018, for a cash purchase price of $84.033 per unit in accordance with the terms of TNCLP’s partnership agreement. See Note 26—Subsequent Event for additional information. On February 1, 2016, CHS purchased a minority equity interest in CFN. We own approximately 89% of CFN and consolidate CFN in our financial statements. CHS' minority equity interest in CFN is included in noncontrolling interests in our consolidated financial statements, and represents CHS' interest in the membership interests of CFN.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States (U.S. GAAP) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses for the periods presented. Significant estimates and assumptions are used for, but are not limited to, net realizable value of inventories, environmental remediation liabilities, environmental and litigation contingencies, the cost of customer incentives, useful lives of property and identifiable intangible assets, the assumptions used in the evaluation of potential impairments of property, investments, identifiable intangible assets and goodwill, income tax and valuation reserves, allowances for doubtful accounts receivable, the measurement of the fair values of investments for which markets are not active, assumptions used in the determination of the funded status and annual expense of defined benefit pension and other postretirement plans, the assumptions used to determine the relative fair values of new reportable segments and the assumptions used in the valuation of stock-based compensation awards granted to employees.
Revenue Recognition	Revenue Recognition The basic criteria necessary for revenue recognition are: (1) evidence that a sales arrangement exists, (2) delivery of goods has occurred, (3) the seller's price to the buyer is fixed or determinable, and (4) collectability is reasonably assured. We recognize revenue when these criteria have been met and when title and risk of loss transfers to the customer, which can be at the plant gate, a distribution facility, a supplier location or a customer destination. Revenue from forward sales programs is recognized on the same basis as other sales (when title and risk of loss transfers to the customer) regardless of when the customer advances are received. We offer certain incentives that typically involve rebates if a customer reaches a specified level of purchases. Customer incentives are accrued monthly and reported as a reduction in net sales. This process is intended to report sales at the ultimate net realized price and requires the use of estimates. Shipping and handling fees billed to customers are reported in revenue. Shipping and handling costs incurred by us are included in cost of sales.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments that are readily convertible to known amounts of cash with original maturities of three months or less. The carrying value of cash and cash equivalents approximates fair value.
Investments	Investments Short-term investments and noncurrent investments are accounted for primarily as available-for-sale securities reported at fair value with changes in fair value reported in other comprehensive income unless fair value is below amortized cost (i.e., the investment is impaired) and the impairment is deemed other-than-temporary, in which case, some or all of the decline in value would be charged to earnings. The carrying values of short-term investments approximate fair values because of the short maturities and the highly liquid nature of these investments.
Accounts Receivable and Allowance for Doubtful Accounts	Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable includes trade receivables and non-trade receivables. Accounts receivable are recorded at face amounts less an allowance for doubtful accounts. The allowance is an estimate based on historical collection experience, current economic and market conditions, and a review of the current status of each customer's trade accounts receivable. A receivable is past due if payments have not been received within the agreed-upon invoice terms. Account balances are charged-off against the allowance when management determines that it is probable that the receivable will not be recovered.
Inventories	Inventories Inventories are reported at the lower of cost and net realizable value with cost determined on a first-in, first-out (FIFO) and average cost basis. Inventory includes the cost of materials, production labor and production overhead. Inventory at warehouses and terminals also includes distribution costs to move inventory to the distribution facilities. Net realizable value is reviewed at least quarterly. Fixed production costs related to idle capacity are not included in the cost of inventory but are charged directly to cost of sales in the period incurred
Investments in and Advances to Unconsolidated Affiliates	Investment in Unconsolidated Affiliate The equity method of accounting is used for investments in affiliates that we do not consolidate, but over which we have the ability to exercise significant influence. Our equity method investment for which the results are included in operating earnings consists of our 50% ownership interest in PLNL, which operates an ammonia production facility in the Republic of Trinidad and Tobago. Our share of the net earnings from this investment is reported as an element of earnings from operations because PLNL's operations provide additional production and are integrated with our supply chain and sales activities in the ammonia segment. See Note 7—Equity Method Investments for additional information. Profits resulting from sales or purchases with equity method investees are eliminated until realized by the investee or investor, respectively. Investments in affiliates are reviewed for impairment whenever events or circumstances indicate that the carrying value may not be recoverable. When circumstances indicate that the fair value of an investment in an affiliate is less than its carrying value, and the reduction in value is other than temporary, the reduction in value is recognized immediately in earnings.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at cost. Depreciation and amortization are computed using the straight-line method or the units-of-production (UOP) method and are recorded over the estimated useful life of the property, plant and equipment. Useful lives are as follows: Years Mobile and office equipment 3 to 10 Production facilities and related assets 2 to 30 Land improvements 10 to 30 Buildings 10 to 40 We periodically review the useful lives assigned to our property, plant and equipment, as well as estimated production capacities used to develop UOP depreciation expense, and we change the estimates to reflect the results of those reviews. Scheduled inspections, replacements and overhauls of plant machinery and equipment at our continuous process manufacturing facilities during a full plant shutdown are referred to as plant turnarounds. Plant turnarounds are accounted for under the deferral method, as opposed to the direct expense or built-in overhaul methods. Under the deferral method, expenditures related to turnarounds are capitalized in property, plant and equipment when incurred and amortized to production costs on a straight-line basis over the period benefited, which is until the next scheduled turnaround in up to five years. If the direct expense method were used, all turnaround costs would be expensed as incurred. Internal employee costs and overhead amounts are not considered turnaround costs and are not capitalized. Turnaround costs are classified as investing activities in the consolidated statements of cash flows. See Note 5—Property, Plant and Equipment—Net for additional information.
Recoverability of Long-Lived Assets	Recoverability of Long-Lived Assets We review property, plant and equipment and other long-lived assets in order to assess recoverability based on expected future undiscounted cash flows whenever events or circumstances indicate that the carrying value may not be recoverable. If the sum of the expected future net cash flows is less than the carrying value, an impairment loss is recognized. The impairment loss is measured as the amount by which the carrying value exceeds the fair value of the asset.
Goodwill and Intangible Assets	Goodwill and Other Intangible Assets Goodwill represents the excess of the purchase price of an acquired entity over the amounts assigned to the assets acquired and liabilities assumed. Goodwill is not amortized, but is reviewed for impairment annually or more frequently if certain impairment conditions arise. We perform our annual goodwill impairment review in the fourth quarter of each year at the reporting unit level. Our evaluation can begin with a qualitative assessment of the factors that could impact the significant inputs used to estimate fair value. If after performing the qualitative assessment, we determine that it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, including goodwill, then no further testing is performed. However, if it is unclear based on the results of the qualitative test, we perform a quantitative test involving potentially two steps. The first step compares the fair value of a reporting unit with its carrying amount, including goodwill. We use an income-based valuation method, determining the present value of future cash flows, to estimate the fair value of a reporting unit. If the fair value of a reporting unit exceeds its positive carrying amount, goodwill of the reporting unit is considered not impaired, and the second step of the impairment test is unnecessary. The second step of the goodwill impairment test, if needed, compares the implied fair value of the reporting unit goodwill with the carrying amount of that goodwill. We recognize an impairment loss immediately to the extent the carrying value exceeds its implied fair value. Our intangible assets are presented in other assets on our consolidated balance sheets. See Note 6—Goodwill and Other Intangible Assets for additional information regarding our goodwill and other intangible assets.
Leases	Leases Leases may be classified as either operating leases or capital leases. Assets acquired under capital leases, if any, would be depreciated on the same basis as property, plant and equipment. For operating leases, rental payments, including rent holidays, leasehold incentives, and scheduled rent increases are expensed on a straight-line basis. Leasehold improvements are amortized over the shorter of the depreciable lives of the corresponding fixed assets or the lease term including any applicable renewals.
Income Taxes	Income Taxes Income taxes are accounted for under the asset and liability method. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those differences are projected to be recovered or settled. Realization of deferred tax assets is dependent on our ability to generate sufficient taxable income of an appropriate character in future periods. A valuation allowance is established if it is determined to be more likely than not that a deferred tax asset will not be realized. Significant judgment is applied in evaluating the need for and magnitude of appropriate valuation allowances against deferred tax assets. Interest and penalties related to unrecognized tax benefits are reported as interest expense and income tax expense, respectively. Historically, a deferred income tax liability was recorded for income taxes that would result from the repatriation of the portion of the investment in the Company's non-U.S. subsidiaries and joint venture that were considered to not be permanently reinvested. No deferred income tax liability was recorded for the remainder of our investment in non-U.S. subsidiaries and joint venture, which we believed to be permanently reinvested.
Customer Advances	Customer Advances Customer advances represent cash received from customers following acceptance of orders under our forward sales programs. Such advances typically represent a significant portion of the contract's sales value and are generally collected by the time the product is shipped, thereby reducing or eliminating accounts receivable from customers upon shipment. Revenue is recognized when title and risk of loss transfers upon shipment or delivery of the product to customers.
Derivative Financial Instruments	Derivative Financial Instruments Natural gas is the principal raw material used to produce nitrogen fertilizers. We manage the risk of changes in natural gas prices primarily through the use of derivative financial instruments. The derivative instruments that we use are primarily fixed price swaps and options traded in the over-the-counter (OTC) markets. The derivatives reference primarily NYMEX futures contract prices, which represent the basis for fair value at any given time. These derivatives are traded in months forward and settlements are scheduled to coincide with anticipated gas purchases during those future periods. In order to manage our exposure to changes in foreign currency exchange rates related to our capacity expansion projects, we used foreign currency derivatives, primarily forward exchange contracts. All of these foreign currency derivatives settled in 2016. The accounting for the change in the fair value of a derivative instrument depends on whether the instrument has been designated as a hedging instrument and whether the instrument is effective as part of a hedging relationship. Changes in the fair value of derivatives not designated as hedging instruments and the ineffective portion of derivatives designated as cash flow hedges are recorded in the consolidated statements of operations as the changes occur. Changes in the fair value of derivatives designated as cash flow hedging instruments considered effective are recorded in accumulated other comprehensive income (AOCI) as the changes occur, and are reclassified into income or expense as the hedged item is recognized in earnings. Derivative financial instruments are accounted for at fair value and recognized as current or noncurrent assets and liabilities on our consolidated balance sheets. The fair values of derivative instruments and any related cash collateral are reported on a gross basis rather than on a net basis. Cash flows related to natural gas derivatives are reported as operating activities. Cash flows related to foreign currency derivatives were reported as investing activities since they hedged future payments for the construction of long-term assets. We do not use derivatives for trading purposes and are not a party to any leveraged derivatives. See Note 14—Derivative Financial Instruments for additional information.
Debt Issuance Costs	Debt Issuance Costs Costs associated with the issuance of debt are recorded on the balance sheet as a direct deduction from the carrying amount of the related debt liability. Costs associated with entering into revolving credit facilities are recorded as an asset in noncurrent assets. All debt issuance costs are amortized over the term of the related debt. Debt issuance discounts are netted against the related debt and are amortized over the term of the debt using the effective interest method. See Note 11—Financing Agreements for additional information.
Environmental	Environmental Environmental expenditures that relate to current operations are expensed or capitalized as appropriate. Expenditures that relate to an existing condition caused by past operations are expensed. Expenditures that increase the capacity or extend the useful life of an asset, improve the safety or efficiency of the operations, or mitigate or prevent future environmental contamination are capitalized. Liabilities are recorded when it is probable that an obligation has been incurred, the costs can be reasonably estimated, and the liability would not be discounted.
Stock-based Compensation	Stock-based Compensation We grant stock-based compensation awards under our equity and incentive plans. The awards that have been granted to date are nonqualified stock options, restricted stock awards, restricted stock units and performance share units. The cost of employee services received in exchange for the awards is measured based on the fair value of the award on the grant date and is recognized as expense on a straight-line basis over the period during which the employee is required to provide the services. See Note 18—Stock-Based Compensation for additional information.
Treasury Stock	Treasury Stock We periodically retire treasury shares acquired through repurchases of our common stock and return those shares to the status of authorized but unissued. We account for treasury stock transactions under the cost method. For each reacquisition of common stock, the number of shares and the acquisition price for those shares is added to the treasury stock count and total value. When treasury shares are retired, we allocate the excess of the repurchase price over the par value of shares acquired to both retained earnings and paid-in capital. The portion allocated to paid-in capital is determined by applying the average paid-in capital per share, and the remaining portion is recorded to retained earnings.
Litigation	Litigation From time to time, we are subject to ordinary, routine legal proceedings related to the usual conduct of our business. We may also be involved in proceedings regarding public utility and transportation rates, environmental matters, taxes and permits relating to the operations of our various plants and facilities. Accruals for such contingencies are recorded to the extent management concludes their occurrence is probable and the financial impact of an adverse outcome is reasonably estimable. Legal fees are recognized as incurred and are not included in accruals for contingencies. Disclosure for specific legal contingencies is provided if the likelihood of occurrence is at least reasonably possible and the exposure is considered material to the consolidated financial statements. In making determinations of likely outcomes of litigation matters, many factors are considered. These factors include, but are not limited to, past history, scientific and other evidence, and the specifics and status of each matter. If the assessment of various factors changes, the estimates may change. Predicting the outcome of claims and litigation, and estimating related costs and exposure involves substantial uncertainties that could cause actual costs to vary materially from estimates and accruals.
Foreign Currency Translation	Foreign Currency Translation We translate the financial statements of our foreign subsidiaries with non-U.S. dollar functional currencies using period-end exchange rates for assets and liabilities and weighted-average exchange rates for each period for revenues and expenses. The resulting translation adjustments are recorded as a separate component of AOCI within stockholders' equity. Foreign currency-denominated assets and liabilities are remeasured into U.S. dollars at exchange rates existing at the respective balance sheet dates. Gains and losses resulting from these foreign currency transactions are included in other operating—net on our consolidated statements of operations. Gains and losses resulting from intercompany foreign currency transactions that are of a long-term investment nature, if any, are reported in other comprehensive income.
New Accounting Standards	New Accounting Standards Recently Adopted Pronouncements On January 1, 2017, we adopted Accounting Standards Update (ASU) No. 2015-11, Inventory (Topic 330): Simplifying the Measurement of Inventory. ASU No. 2015-11 changes the inventory measurement principle for entities using the FIFO or average cost methods. For entities utilizing one of these methods, the inventory measurement principle changed from lower of cost or market to the lower of cost and net realizable value. We follow the FIFO or average cost methods and the adoption of ASU No. 2015-11 did not have a material impact on our consolidated financial statements. Recently Issued Pronouncements In May 2014, the Financial Accounting Standards Board (FASB) issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in Accounting Standards Codification (ASC) Topic 605, Revenue Recognition. This ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments. Additionally, the costs to obtain and fulfill a contract, including assets to be recognized, are to be capitalized and amortized and such capitalized costs should be disclosed. In 2016, the FASB issued additional ASUs that enhance the operability of the principal versus agent guidance in ASU No. 2014-09 by clarifying that an entity should consider the nature of each good or service promised to a customer at the individual good or service level, clarify that ASU No. 2014-09 should not be applied to immaterial performance obligations, and enhance the guidance around the treatment of shipping costs incurred to fulfill performance obligations. We adopted ASU No. 2014-09 on January 1, 2018 using the modified retrospective approach. While we will provide expanded disclosures as a result of ASU No. 2014-09, the adoption of this ASU did not have a material impact on our consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which supersedes the lease accounting requirements in ASC Topic 840, Leases. This ASU will require lessees to recognize the rights and obligations resulting from virtually all leases (other than leases that meet the definition of a short-term lease) on their balance sheets as right-of-use assets with corresponding lease liabilities. Extensive quantitative and qualitative disclosures, including significant judgments made by management, will be required to provide greater insight into the extent of income and expense recognized and expected to be recognized from existing contracts. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted, and requires the modified retrospective method of adoption. While we are continuing to evaluate the impact of the adoption of this ASU on our consolidated financial statements, we currently believe the most significant change relates to the recognition of new right-of-use assets and lease liabilities on our balance sheet for operating leases for certain property and equipment, including rail car leases and barge tow charters that are utilized for the distribution of our products. See Note 23—Leases for additional information. In October 2016, the FASB issued ASU No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amendments are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017, and should be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the beginning of the period of adoption. We adopted ASU No. 2016-16 on January 1, 2018. The adoption of ASU No. 2016-16 did not have a material impact on our consolidated financial statements. In March 2017, the FASB issued ASU No. 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which will change the presentation of net benefit cost related to employer sponsored defined benefit plans and other postretirement benefits. Service cost will be included within the same income statement line item as other compensation costs arising from services rendered during the period, while other components of net benefit cost will be presented separately outside of operating income. Additionally, only service costs may be capitalized on the balance sheet. This ASU is effective for annual and interim periods beginning after December 15, 2017. On January 1, 2018, we adopted ASU No. 2017-07 retrospectively for the income statement classification requirements and prospectively for the capitalization guidance. The adoption of ASU No. 2017-07 did not have a material impact on our consolidated financial statements. In August 2017, the FASB issued ASU No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, which improves the financial reporting of hedging relationships in order to better portray the economic results of an entity's risk management activities in its financial statements. The amendments are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, and should be applied to existing hedging relationships as of the date of adoption. We do not expect the adoption of this ASU will have a material effect on our consolidated financial statements. In February 2018, the FASB issued ASU No. 2018-2, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This ASU allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The amendments in this ASU are effective for fiscal years beginning after December 15, 2018 and for interim periods therein. Early adoption of this ASU is permitted. We do not expect the adoption of this ASU will have a material effect on our consolidated financial statements. See Note 9—Income Taxes for additional information.

Summary of Significant Accoun36

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Schedule of depreciable lives	Property, plant and equipment are stated at cost. Depreciation and amortization are computed using the straight-line method or the units-of-production (UOP) method and are recorded over the estimated useful life of the property, plant and equipment. Useful lives are as follows: Years Mobile and office equipment 3 to 10 Production facilities and related assets 2 to 30 Land improvements 10 to 30 Buildings 10 to 40

Net Earnings Per Share (Tables)

Net Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2017
Earnings Per Share [Abstract]
Summary of net earnings per share	Net earnings (loss) per share were computed as follows: Year ended December 31, 2017 2016 2015 (in millions, except per share amounts) Net earnings (loss) attributable to common stockholders $ 358 $ (277 ) $ 700 Basic earnings per common share: Weighted-average common shares outstanding 233.5 233.1 235.3 Net earnings (loss) attributable to common stockholders $ 1.53 $ (1.19 ) $ 2.97 Diluted earnings per common share: Weighted-average common shares outstanding 233.5 233.1 235.3 Dilutive common shares—stock options 0.4 — 0.8 Diluted weighted-average shares outstanding 233.9 233.1 236.1 Net earnings (loss) attributable to common stockholders $ 1.53 $ (1.19 ) $ 2.96

Property, Plant and Equipment38

Property, Plant and Equipment-Net (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment, Net [Abstract]
Components of property, plant and equipment-net	Property, plant and equipment—net consists of the following: December 31, 2017 2016 (in millions) Land $ 71 $ 69 Machinery and equipment 12,070 11,664 Buildings and improvements 882 878 Construction in progress 223 280 Property, plant and equipment (1) 13,246 12,891 Less: Accumulated depreciation and amortization 4,071 3,239 Property, plant and equipment—net $ 9,175 $ 9,652 _______________________________________________________________________________ (1) As of December 31, 2017 and 2016 , we had property, plant and equipment that was accrued but unpaid of approximately $46 million and $225 million , respectively. These amounts included accruals related to our capacity expansion projects of $185 million as of December 31, 2016 .
Summary of plant turnaround activity	The following is a summary of capitalized plant turnaround costs: Year ended December 31, 2017 2016 2015 (in millions) Net capitalized turnaround costs at beginning of the year $ 206 $ 220 $ 153 Additions 100 74 135 Depreciation (102 ) (89 ) (65 ) Effect of exchange rate changes 4 1 (3 ) Net capitalized turnaround costs at end of the year $ 208 $ 206 $ 220

Goodwill and Other Intangible39

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of carrying amount of goodwill by business segment	The following table shows the carrying amount of goodwill by reportable segment as of December 31, 2017 and 2016 : Ammonia Granular Urea UAN AN Other Total (in millions) Balance as of December 31, 2016 $ 585 $ 828 $ 576 $ 286 $ 70 $ 2,345 Effect of exchange rate changes 2 1 — 20 3 26 Balance as of December 31, 2017 $ 587 $ 829 $ 576 $ 306 $ 73 $ 2,371
Schedule of the identifiable intangibles and their carrying values presented in other noncurrent assets on consolidated balance sheet	December 31, 2017 December 31, 2016 Gross Accumulated Net Gross Accumulated Net (in millions) Intangible assets: Customer relationships $ 132 $ (31 ) $ 101 $ 125 $ (24 ) $ 101 TerraCair brand 10 (10 ) — 10 (10 ) — Trade names 32 (4 ) 28 29 (2 ) 27 Total intangible assets $ 174 $ (45 ) $ 129 $ 164 $ (36 ) $ 128
Schedule of estimated future amortization expense	Total estimated amortization expense for each of the five succeeding fiscal years is as follows: Estimated (in millions) 2018 $ 8 2019 8 2020 8 2021 8 2022 8

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of cash and cash equivalents and other investments reconciliation from adjusted cost to fair value	Our cash and cash equivalents and other investments consist of the following: December 31, 2017 Cost Basis Unrealized Unrealized Fair Value (in millions) Cash $ 120 $ — $ — $ 120 Cash equivalents: U.S. and Canadian government obligations 710 — — 710 Other debt securities 5 — — 5 Total cash and cash equivalents $ 835 $ — $ — $ 835 Nonqualified employee benefit trusts 17 2 — 19 December 31, 2016 Cost Basis Unrealized Unrealized Fair Value (in millions) Cash $ 89 $ — $ — $ 89 Cash equivalents: U.S. and Canadian government obligations 1,075 — — 1,075 Total cash and cash equivalents $ 1,164 $ — $ — $ 1,164 Restricted cash 5 — — 5 Nonqualified employee benefit trusts 18 1 — 19
Schedule of assets and liabilities measured at fair value on a recurring basis	The following tables present assets and liabilities included in our consolidated balance sheets as of December 31, 2017 and 2016 that are recognized at fair value on a recurring basis, and indicate the fair value hierarchy utilized to determine such fair value: December 31, 2017 Total Fair Value Quoted Prices Significant Significant (in millions) Cash equivalents $ 715 $ 715 $ — $ — Nonqualified employee benefit trusts 19 19 — — Derivative assets 1 — 1 — Derivative liabilities (12 ) — (12 ) — Embedded derivative liability (25 ) — (25 ) — December 31, 2016 Total Fair Value Quoted Prices Significant Significant (in millions) Cash equivalents $ 1,075 $ 1,075 $ — $ — Restricted cash 5 5 — — Nonqualified employee benefit trusts 19 19 — — Derivative assets 56 — 56 — Derivative liabilities (6 ) — (6 ) — Embedded derivative liability (26 ) — (26 ) —
Schedule of carrying amounts and estimated fair values of financial instruments	The carrying amounts and estimated fair value of our financial instruments are as follows: December 31, 2017 2016 Carrying Fair Value Carrying Fair Value (in millions) Long-term debt $ 4,692 $ 4,800 $ 5,778 $ 5,506

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of components of earnings before income taxes and equity in earnings of non-operating affiliates	The components of (loss) earnings before income taxes and equity in earnings of non-operating affiliates are as follows: Year ended December 31, 2017 2016 2015 (in millions) Domestic $ (186 ) $ (43 ) $ 1,031 Non-U.S. 61 (183 ) 27 $ (125 ) $ (226 ) $ 1,058
Schedule of components of Income tax provision	The components of the income tax (benefit) provision are as follows: Year ended December 31, 2017 2016 2015 (in millions) Current Federal $ (43 ) $ (795 ) $ 258 Foreign 19 11 20 State (6 ) (23 ) 39 (30 ) (807 ) 317 Deferred Federal (44 ) 761 76 Foreign (3 ) (1 ) (13 ) State (7 ) (21 ) 16 (54 ) 739 79 Income tax (benefit) provision before Tax Reform (84 ) (68 ) 396 Tax Reform - Current Federal 54 — — Foreign — — — State 3 — — 57 — — Tax Reform - Deferred Federal (548 ) — — Foreign — — — State — — — (548 ) — — Income tax benefit - Tax Reform (491 ) — — Income tax (benefit) provision $ (575 ) $ (68 ) $ 396
Summary of differences in expected income tax provision based on statutory rates applied to earnings before income taxes and income tax provision reflected in the consolidated statements of operations	Differences in the expected income tax (benefit) provision based on statutory rates applied to (loss) earnings before income taxes and the income tax (benefit) provision reflected in the consolidated statements of operations are summarized below: Year ended December 31, 2017 2016 2015 (in millions, except percentages) (Loss) earnings before income taxes and equity in earnings of non-operating affiliates $ (125 ) $ (226 ) $ 1,058 Expected tax (benefit) provision at U.S. statutory rate of 35% (44 ) (79 ) 370 State income taxes, net of federal (21 ) (33 ) 32 Net earnings attributable to noncontrolling interests (32 ) (42 ) (12 ) U.S. manufacturing profits deduction 6 39 (17 ) Foreign tax rate differential (6 ) 30 (17 ) U.S. tax on foreign earnings 1 (10 ) — Valuation allowance (3 ) 50 16 Non-deductible capital costs — (17 ) 18 Tax rate change 17 — — Other (2 ) (6 ) 6 U.S. enacted tax rate change (Tax Reform) (552 ) — — Transition tax liability and other (Tax Reform) 61 — — Income tax (benefit) provision $ (575 ) $ (68 ) $ 396 Effective tax rate 457.2 % 30.0 % 37.4 % Income tax (benefit) provision before Tax Reform (1) $ (84 ) $ (68 ) $ 396 Effective tax rate before Tax Reform 67.0 % 30.0 % 37.4 %
Schedule of deferred tax assets and deferred tax liabilities	Deferred tax assets and deferred tax liabilities are as follows: December 31, 2017 2016 (in millions) Deferred tax assets: Net operating loss and capital loss carryforwards $ 359 $ 187 Retirement and other employee benefits 67 118 Unrealized loss on hedging derivatives 6 9 Intangible asset 5 34 Other 115 140 552 488 Valuation allowance (156 ) (159 ) 396 329 Deferred tax liabilities: Depreciation and amortization (256 ) (329 ) Investments in partnerships (1,151 ) (1,582 ) Foreign earnings (28 ) (28 ) Unrealized gain on hedging derivatives — (16 ) Other (8 ) (4 ) (1,443 ) (1,959 ) Net deferred tax liability $ (1,047 ) $ (1,630 )
Schedule of reconciliation of the beginning and ending amount of unrecognized tax benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows: December 31, 2017 2016 (in millions) Unrecognized tax benefits: Beginning balance $ 134 $ 155 Additions for tax positions taken during the current year — — Additions for tax positions taken during prior years — 2 Reductions related to lapsed statutes of limitations (11 ) (7 ) Reductions related to settlements with tax jurisdictions (1 ) (16 ) Ending balance $ 122 $ 134

Pension and Other Postretirem42

Pension and Other Postretirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Schedule of plan assets, benefit obligations, funded status for the U.S. and Canadian plans	Our plan assets, benefit obligations, funded status and amounts recognized on the consolidated balance sheets for our North America and United Kingdom plans as of the December 31 measurement date are as follows: Pension Plans Retiree Medical Plans North America United Kingdom North America December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 (in millions) Change in plan assets Fair value of plan assets as of January 1 $ 636 $ 627 $ 366 $ 414 $ — $ — Return on plan assets 70 39 16 21 — — Employer contributions 63 4 19 19 5 4 Plan participant contributions — — — — 1 1 Benefit payments (40 ) (38 ) (22 ) (19 ) (6 ) (5 ) Foreign currency translation 9 4 35 (69 ) — — Fair value of plan assets as of December 31 738 636 414 366 — — Change in benefit obligation Benefit obligation as of January 1 (759 ) (736 ) (559 ) (563 ) (52 ) (56 ) Service cost (14 ) (14 ) — — — — Interest cost (30 ) (31 ) (16 ) (19 ) (2 ) (2 ) Benefit payments 40 38 22 19 6 5 Foreign currency translation (9 ) (3 ) (52 ) 99 — — Plan participant contributions — — — — (1 ) (1 ) Change in assumptions and other (33 ) (13 ) 15 (95 ) (4 ) 2 Benefit obligation as of December 31 (805 ) (759 ) (590 ) (559 ) (53 ) (52 ) Funded status as of year end $ (67 ) $ (123 ) $ (176 ) $ (193 ) $ (53 ) $ (52 )
Schedule of amounts recognized in consolidated balance sheets	Amounts recognized on the consolidated balance sheets consist of the following: Pension Plans Retiree Medical Plans North America United Kingdom North America December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 (in millions) Other assets $ 10 $ 7 $ — $ — $ — $ — Accrued expenses — — — — (4 ) (5 ) Other liabilities (77 ) (130 ) (176 ) (193 ) (49 ) (47 ) $ (67 ) $ (123 ) $ (176 ) $ (193 ) $ (53 ) $ (52 )
Schedule of pre-tax amounts recognized in accumulated other comprehensive loss	Pre-tax amounts recognized in accumulated other comprehensive loss consist of the following: Pension Plans Retiree Medical Plans North America United Kingdom North America December 31, December 31, December 31, 2017 2016 2017 2016 2017 2016 (in millions) Prior service cost (benefit) $ 1 $ 1 $ — $ — $ (2 ) $ (4 ) Net actuarial loss 80 91 73 80 12 7 $ 81 $ 92 $ 73 $ 80 $ 10 $ 3
Schedule of net periodic benefit cost and other amounts recognized in accumulated other comprehensive loss	Net periodic benefit cost (income) and other amounts recognized in accumulated other comprehensive loss for the years ended December 31 included the following: Pension Plans Retiree Medical Plans North America United Kingdom North America 2017 2016 2015 2017 2016 2015 2017 2016 2015 (in millions) Service cost $ 14 $ 14 $ 14 $ — $ — $ — $ — $ — $ — Interest cost 30 31 30 16 19 9 2 2 2 Expected return on plan assets (26 ) (30 ) (28 ) (18 ) (20 ) (9 ) — — — Amortization of prior service cost (benefit) — — — — — — (1 ) (1 ) (1 ) Amortization of actuarial loss (gain) 1 1 6 1 — — (1 ) (1 ) 1 Net periodic benefit cost (income) 19 16 22 (1 ) (1 ) — — — 2 Net actuarial (gain) loss (11 ) 4 (11 ) (13 ) 94 (8 ) 5 (2 ) (4 ) Amortization of prior service benefit — — — — — — 1 1 1 Amortization of actuarial (loss) gain (1 ) (1 ) (6 ) (1 ) — — 1 — (1 ) Total recognized in accumulated other comprehensive loss (12 ) 3 (17 ) (14 ) 94 (8 ) 7 (1 ) (4 ) Total recognized in net periodic benefit cost (income) and accumulated other comprehensive loss $ 7 $ 19 $ 5 $ (15 ) $ 93 $ (8 ) $ 7 $ (1 ) $ (2 )
Schedule of amounts that will be amortized from accumulated other comprehensive income into net periodic benefit cost in 2014	Amounts that will be amortized from accumulated other comprehensive loss into net periodic benefit cost in 2018 are as follows: Pension Plans Retiree Medical Plans North America United Kingdom North America (in millions) Prior service cost (benefit) $ — $ — $ (1 ) Net actuarial loss (gain) 3 — —
Schedule of benefit obligations in excess of fair value of plan assets	The following table presents aggregated information for those individual defined benefit pension plans that have an ABO in excess of plan assets as of December 31, which excludes one North American defined benefit pension plan that has plan assets in excess of its ABO: North America United Kingdom 2017 2016 2017 2016 (in millions) Accumulated benefit obligation $ (629 ) $ (599 ) $ (590 ) $ (559 ) Fair value of plan assets 590 508 414 366 The following table presents aggregated information for those individual defined benefit pension plans that have a PBO in excess of plan assets as of December 31, which excludes one North American defined benefit pension plan that has plan assets in excess of its PBO: North America United Kingdom 2017 2016 2017 2016 (in millions) Projected benefit obligation $ (739 ) $ (699 ) $ (590 ) $ (559 ) Fair value of plan assets 663 568 414 366
Schedule of expected future pension and retiree medical benefit payments	The expected future benefit payments for our pension and retiree medical plans are as follows: Pension Plans Retiree Medical Plans North America United Kingdom North America (in millions) 2018 $ 43 $ 24 $ 4 2019 45 25 4 2020 46 25 4 2021 47 26 4 2022 48 27 4 2023-2027 251 145 15
Schedule of assumptions used in determining the benefit obligations and expense	The following assumptions were used in determining the benefit obligations and expense: Pension Plans Retiree Medical Plans North America United Kingdom North America 2017 2016 2015 2017 2016 2015 2017 2016 2015 Weighted-average discount rate—obligation 3.6 % 4.0 % 4.3 % 2.5 % 2.8 % 3.8 % 3.4 % 3.8 % 3.9 % Weighted-average discount rate—expense 4.0 % 4.3 % 4.0 % 2.8 % 3.8 % 3.7 % 3.8 % 3.9 % 3.6 % Weighted-average rate of increase in future compensation 4.3 % 4.3 % 4.3 % n/a n/a n/a n/a n/a n/a Weighted-average expected long-term rate of return on assets—expense 4.2 % 4.9 % 4.8 % 4.6 % 5.2 % 5.4 % n/a n/a n/a Weighted-average retail price index—obligation n/a n/a n/a 3.2 % 3.3 % 3.1 % n/a n/a n/a Weighted-average retail price index—expense n/a n/a n/a 3.3 % 3.1 % 3.1 % n/a n/a n/a
Schedule of one-percentage point change in the assumed health care cost trend rate	A one-percentage point change in the assumed health care cost trend rate of our primary (U.S.) retiree medical benefit plans as of December 31, 2017 would have the following effects on our retiree medical benefit plans: One-Percentage-Point Increase Decrease (in millions) Effect on total service and interest cost for 2017 $ — $ — Effect on benefit obligation as of December 31, 2017 6 (5 )
Schedule of fair values of U.S. and Canadian pension plan assets	The fair values of our pension plan assets as of December 31, 2017 and 2016 , by major asset class, are as follows: North America December 31, 2017 Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (in millions) Cash and cash equivalents (1) $ 26 $ — $ 26 $ — Equity mutual funds Index equity (2) 136 136 — — Pooled equity (3) 42 — 42 — Fixed income U.S. Treasury bonds and notes (4) 15 15 — — Pooled mutual funds (5) 106 — 106 — Corporate bonds and notes (6) 400 — 400 — Government and agency securities (7) 9 — 9 — Other (8) 3 — 3 — Total assets at fair value by fair value levels $ 737 $ 151 $ 586 $ — Receivables—net 1 Total assets $ 738 United Kingdom December 31, 2017 Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (in millions) Cash $ 5 $ 5 $ — $ — Pooled target return funds (9) 213 — 213 — Fixed income — Pooled UK government index-linked securities (10) 31 — 31 — Pooled global fixed income funds (11) 122 — 122 — Total assets at fair value by fair value levels $ 371 $ 5 $ 366 $ — Assets measured at NAV as a practical expedient Pooled property funds (12) 43 Total assets measured at NAV as a practical expedient 43 Total assets at fair value 414 Accruals and payables—net — Total assets $ 414 North America December 31, 2016 Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (in millions) Cash and cash equivalents (1) $ 39 $ 6 $ 33 $ — Equity mutual funds Index equity (2) 112 112 — — Pooled equity (3) 41 — 41 — Fixed income U.S. Treasury bonds and notes (4) 14 14 — — Pooled mutual funds (5) 86 — 86 — Corporate bonds and notes (6) 329 — 329 — Government and agency securities (7) 15 — 15 — Other (8) 1 — 1 — Total assets at fair value by fair value levels $ 637 $ 132 $ 505 $ — Accruals and payables—net (1 ) Total assets $ 636 United Kingdom December 31, 2016 Total Fair Quoted Significant Significant (in millions) Cash $ 3 $ 3 $ — $ — Pooled target return funds (9) 185 — 185 — Fixed income Pooled UK government index-linked securities (10) 28 — 28 — Pooled global fixed income funds (11) 114 — 114 — Total assets at fair value by fair value levels $ 330 $ 3 $ 327 $ — Assets measured at NAV as a practical expedient Pooled property funds (12) 36 Total assets measured at NAV as a practical expedient 36 Total assets at fair value 366 Accruals and payables—net — Total assets $ 366 _______________________________________________________________________________ (1) Cash and cash equivalents are primarily repurchase agreements and short-term money market funds . (2) The index equity funds are mutual funds that utilize a passively managed investment approach designed to track specific equity indices. They are valued at quoted market prices in an active market, which represent the net asset values of the shares held by the plan. (3) The equity pooled mutual funds consist of pooled funds that invest in common stock and other equity securities that are traded on U.S., Canadian, and foreign markets. (4) U.S. Treasury bonds and notes are valued based on quoted market prices in an active market. (5) The fixed income pooled mutual funds invest in investment-grade corporate debt, various governmental debt obligations, and mortgage-backed securities with varying maturities. (6) Corporate bonds and notes, including private placement securities, are valued by institutional bond pricing services, which gather information from market sources and integrate credit information, observed market movements and sector news into their pricing applications and models. (7) Government and agency securities consist of municipal bonds that are valued by institutional bond pricing services, which gather information on current trading activity, market movements, trends, and specific data on specialty issues. (8) Other includes primarily mortgage-backed and asset-backed securities, which are valued by institutional pricing services, which gather information from market sources and integrate credit information, observed market movements and sector news into their pricing applications and models. (9) Pooled target return funds invest in a broad array of asset classes and a range of diversifiers including the use of derivatives. The funds are valued at net asset value (NAV) as determined by the fund managers based on the value of the underlying net assets of the fund. (10) Pooled United Kingdom government index-linked funds invest primarily in United Kingdom government index-linked gilt securities. The funds are valued at NAV as determined by the fund managers based on the value of the underlying net assets of the fund. (11) Pooled global fixed income funds invest primarily in government bonds, investment grade corporate bonds, high yield and emerging market bonds and can make use of derivatives. The funds are valued at NAV as determined by the fund managers based on the value of the underlying net assets of the fund. (12) Pooled property funds invest primarily in freehold and leasehold property in the United Kingdom. The funds are valued using NAV as a practical expedient. NAV is determined by the fund managers based on the value of the underlying net assets of the fund.

Financing Agreements (Tables)

Financing Agreements (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Long-term Debt	Long-term debt presented on our consolidated balance sheets as of December 31, 2017 and December 31, 2016 consisted of the following Public Senior Notes (unsecured) and Senior Secured Notes issued by CF Industries: Effective Interest Rate December 31, December 31, Principal Carrying Amount (1) Principal Carrying Amount (1) (in millions) Public Senior Notes: 6.875% due May 2018 7.344% $ — $ — $ 800 $ 795 7.125% due May 2020 7.529% 500 496 800 791 3.450% due June 2023 3.562% 750 746 750 745 5.150% due March 2034 5.279% 750 739 750 739 4.950% due June 2043 5.031% 750 741 750 741 5.375% due March 2044 5.465% 750 741 750 741 Senior Secured Notes: 3.400% due December 2021 3.782% 500 493 500 491 4.500% due December 2026 4.759% 750 736 750 735 Total long-term debt $ 4,750 $ 4,692 $ 5,850 $ 5,778 _______________________________________________________________________________ (1) Carrying amount is net of unamortized debt discount and deferred debt issuance costs. Total unamortized debt discount was $12 million as of both December 31, 2017 and December 31, 2016 , and total deferred debt issuance costs were $46 million and $60 million as of December 31, 2017 and December 31, 2016 , respectively.

Interest Expense (Tables)

Interest Expense (Tables)	12 Months Ended
	Dec. 31, 2017
Interest Expense [Abstract]
Schedule of interest expense	Details of interest expense are as follows: Year ended December 31, 2017 2016 2015 (in millions) Interest on borrowings (1) $ 300 $ 303 $ 267 Fees on financing agreements (1)(2)(3) 16 59 17 Interest on tax liabilities 1 4 3 Interest capitalized (2 ) (166 ) (154 ) Interest expense $ 315 $ 200 $ 133 _______________________________________________________________________________ (1) See Note 11—Financing Agreements for additional information. (2) Fees on financing agreements for the year ended December 31, 2016 includes $28 million of fees related to the termination of the tranche B commitment under the bridge credit agreement as a result of the termination of the Combination Agreement. Fees on financing agreements for the year ended December 31, 2015 includes $6 million of accelerated amortization of deferred fees related to the termination in September 2015 of the tranche A commitment under the bridge credit agreement. See Note 11—Financing Agreements additional information. (3) Fees on financing agreements for the year ended December 31, 2016 includes $9 million of accelerated amortization of deferred fees related to the payment of the Private Senior Notes in November 2016, $2 million of accelerated amortization of deferred fees related to the July 2016 Credit Agreement Amendment, which reduced the Revolving Credit Facility to $1.5 billion from $2.0 billion , and $4 million of accelerated amortization of deferred fees related to the November 2016 Credit Agreement Amendment, which reduced the Revolving Credit Facility to $750 million from $1.5 billion . See Note 11—Financing Agreements for additional information.

Other Operating Expenses (Table

Other Operating Expenses (Tables)	12 Months Ended
	Dec. 31, 2017
Other Operating-Net
Details of other operating-net	Details of other operating—net are as follows: Year ended December 31, 2017 2016 2015 (in millions) Loss on disposal of property, plant and equipment—net $ 3 $ 10 $ 21 Expansion project costs (1) — 73 51 Loss on foreign currency derivatives (2) — — 22 Loss (gain) on foreign currency transactions (3) 2 93 (8 ) Loss on embedded derivative (4) 4 23 — Other 9 9 6 Other operating—net $ 18 $ 208 $ 92

Derivative Financial Instrume46

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of effect of derivatives in our consolidated statements of operations	The effect of derivatives in our consolidated statements of operations is shown in the table below: Gain (loss) in income Year ended December 31, Location 2017 2016 2015 (in millions) Natural gas derivatives Cost of sales $ (61 ) $ 260 $ (176 ) Foreign exchange contracts Other operating—net — — 22 Unrealized (losses) gains recognized in income (61 ) 260 (154 ) Realized losses (26 ) (133 ) (114 ) Net derivative (losses) gains $ (87 ) $ 127 $ (268 )
Schedule of fair values of derivatives in our consolidated balance sheet	The fair values of derivatives on our consolidated balance sheets are shown below. As of December 31, 2017 and 2016 , none of our derivative instruments were designated as hedging instruments. See Note 8—Fair Value Measurements for additional information on derivative fair values. Asset Derivatives Liability Derivatives Balance Sheet Location December 31, Balance Sheet Location December 31, 2017 2016 2017 2016 (in millions) (in millions) Natural gas derivatives Other current assets $ 1 $ 52 Other current liabilities $ (12 ) $ — Natural gas derivatives Other assets — 4 Other liabilities — (6 ) Total derivatives $ 1 $ 56 $ (12 ) $ (6 )
Schedule of amounts relevant to offsetting of derivative assets	The following table presents amounts relevant to offsetting of our derivative assets and liabilities as of December 31, 2017 and 2016 : Amounts presented in consolidated balance sheets (1) Gross amounts not offset in consolidated balance sheets Financial instruments Cash collateral received (pledged) Net amount (in millions) December 31, 2017 Total derivative assets $ 1 $ 1 $ — $ — Total derivative liabilities (12 ) (1 ) — (11 ) Net derivative liabilities $ (11 ) $ — $ — $ (11 ) December 31, 2016 Total derivative assets $ 56 $ 6 $ — $ 50 Total derivative liabilities (6 ) (6 ) — — Net derivative assets $ 50 $ — $ — $ 50 _______________________________________________________________________________ (1) We report the fair values of our derivative assets and liabilities on a gross basis on our consolidated balance sheets. As a result, the gross amounts recognized and net amounts presented are the same.
Schedule of amounts relevant to offsetting of derivative liabilities	The following table presents amounts relevant to offsetting of our derivative assets and liabilities as of December 31, 2017 and 2016 : Amounts presented in consolidated balance sheets (1) Gross amounts not offset in consolidated balance sheets Financial instruments Cash collateral received (pledged) Net amount (in millions) December 31, 2017 Total derivative assets $ 1 $ 1 $ — $ — Total derivative liabilities (12 ) (1 ) — (11 ) Net derivative liabilities $ (11 ) $ — $ — $ (11 ) December 31, 2016 Total derivative assets $ 56 $ 6 $ — $ 50 Total derivative liabilities (6 ) (6 ) — — Net derivative assets $ 50 $ — $ — $ 50 _______________________________________________________________________________ (1) We report the fair values of our derivative assets and liabilities on a gross basis on our consolidated balance sheets. As a result, the gross amounts recognized and net amounts presented are the same.

Supplemental Balance Sheet Da47

Supplemental Balance Sheet Data (Tables)	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable	Accounts receivable—net consist of the following: December 31, 2017 2016 (in millions) Trade $ 297 $ 227 Other 10 9 Accounts receivable—net $ 307 $ 236
Schedule of inventory, current	Inventories consist of the following: December 31, 2017 2016 (in millions) Finished goods $ 233 $ 279 Raw materials, spare parts and supplies 42 60 Total inventories $ 275 $ 339
Schedule of accounts payable and accrued liabilities	Accounts payable and accrued expenses consist of the following: December 31, 2017 2016 (in millions) Accounts payable $ 99 $ 81 Capacity expansion project costs — 185 Accrued natural gas costs 109 111 Payroll and employee-related costs 65 46 Accrued interest 38 53 Other 161 162 Accounts payable and accrued expenses $ 472 $ 638
Other noncurrent liabilities	Other liabilities consist of the following: December 31, 2017 2016 (in millions) Benefit plans and deferred compensation $ 324 $ 393 Tax-related liabilities 93 103 Unrealized losses on derivatives — 6 Unrealized loss on embedded derivative 20 21 Environmental and related costs 7 8 Other 16 14 Other liabilities $ 460 $ 545

Noncontrolling Interests (Table

Noncontrolling Interests (Tables)	12 Months Ended
	Dec. 31, 2017
Noncontrolling Interest [Abstract]
Schedule of reconciliation of the beginning and ending balances of noncontrolling interest and distributions payable to the noncontrolling interests on the entity's consolidated balance sheet	A reconciliation of the beginning and ending balances of noncontrolling interests and distributions payable to the noncontrolling interests on our consolidated balance sheets is provided below. Year ended December 31, 2017 2016 2015 CFN TNCLP Total CFN TNCLP Total TNCLP (in millions) Noncontrolling interests: Beginning balance $ 2,806 $ 338 $ 3,144 $ — $ 352 $ 352 $ 363 Issuance of noncontrolling interest in CFN — — — 2,792 — 2,792 — Earnings attributable to noncontrolling interests 73 19 92 93 26 119 34 Declaration of distributions payable (107 ) (24 ) (131 ) (79 ) (40 ) (119 ) (45 ) Ending balance $ 2,772 $ 333 $ 3,105 $ 2,806 $ 338 $ 3,144 $ 352 Distributions payable to noncontrolling interests: Beginning balance $ — $ — $ — $ — $ — $ — $ — Declaration of distributions payable 107 24 131 79 40 119 45 Distributions to noncontrolling interests (107 ) (24 ) (131 ) (79 ) (40 ) (119 ) (45 ) Ending balance $ — $ — $ — $ — $ — $ — $ —

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2017
Stockholders' Equity Note [Abstract]
Share Repurchases	The following table summarizes the share repurchases under the 2014 Program. 2014 Program Shares Amounts (in millions) Shares repurchased as of December 31, 2014 7.0 $ 373 Shares repurchased in 2015: First quarter 4.1 $ 237 Second quarter 4.5 268 Third quarter 0.3 22 Fourth quarter — — Total shares repurchased in 2015 8.9 527 Shares repurchased as of December 31, 2015 15.9 $ 900
Schedule of changes in common shares issued and outstanding	Changes in common shares outstanding are as follows: Year ended December 31, 2017 2016 2015 Beginning balance 233,114,169 233,081,556 241,673,050 Exercise of stock options 90,938 17,600 274,705 Issuance of restricted stock (1) 93,833 44,941 40,673 Forfeitures of restricted stock — (10,000 ) — Purchase of treasury shares (2) (11,851 ) (19,928 ) (8,906,872 ) Ending balance 233,287,089 233,114,169 233,081,556 _______________________________________________________________________________ (1) Includes shares issued from treasury. (2) Includes shares withheld to pay employee tax obligations upon the vesting of restricted stock.
Schedule of changes to accumulated other comprehensive income (loss)	Changes to accumulated other comprehensive (loss) income (AOCI) and the impact on other comprehensive income (loss) are as follows: Foreign Currency Translation Adjustment Unrealized Gain (Loss) on Securities Unrealized Gain (Loss) on Derivatives Defined Benefit Plans Accumulated Other Comprehensive (Loss) Income (in millions) Balance as of December 31, 2014 $ (41 ) $ 1 $ 5 $ (125 ) $ (160 ) Reclassification to earnings — 1 — 6 7 Impact of CF Fertilisers UK acquisition 9 — — 38 47 Gain arising during the period — — — 24 24 Effect of exchange rate changes and deferred taxes (166 ) (1 ) — (1 ) (168 ) Balance as of December 31, 2015 (198 ) 1 5 (58 ) (250 ) Unrealized loss — (1 ) — — (1 ) Reclassification to earnings — 1 — 1 2 Loss arising during the period — — — (97 ) (97 ) Effect of exchange rate changes and deferred taxes (74 ) — — 22 (52 ) Balance as of December 31, 2016 (272 ) 1 5 (132 ) (398 ) Reclassification to earnings — — (1 ) 1 — Gain arising during the period — — — 19 19 Effect of exchange rate changes and deferred taxes 127 — — (11 ) 116 Balance as of December 31, 2017 $ (145 ) $ 1 $ 4 $ (123 ) $ (263 )
Schedule of reclassifications out of AOCI	Reclassifications out of AOCI to the consolidated statements of operations for the years ended December 31, 2017 , 2016 and 2015 were as follows: Year ended December 31, 2017 2016 2015 (in millions) Foreign Currency Translation Adjustment CF Fertilisers UK equity method investment remeasurement (1) $ — $ — $ 9 Total before tax — — 9 Tax effect — — — Net of tax $ — $ — $ 9 Unrealized Gain (Loss) on Securities Available-for-sale securities (2) $ — $ 1 $ 1 Total before tax — 1 1 Tax effect — — (1 ) Net of tax $ — $ 1 $ — Unrealized Gain (Loss) on Derivatives Reclassification of de-designated hedges $ (1 ) $ — $ — Total before tax (1 ) — — Tax effect — — — Net of tax $ (1 ) $ — $ — Defined Benefit Plans CF Fertilisers UK equity method investment remeasurement (1) $ — $ — $ 38 Amortization of prior service cost (benefit) (3) (1 ) (1 ) (1 ) Amortization of net loss (3) 2 2 7 Total before tax 1 1 44 Tax effect — — (2 ) Net of tax $ 1 $ 1 $ 42 Total reclassifications for the period $ — $ 2 $ 51 _______________________________________________________________________________ (1) Represents the amount that was reclassified from AOCI into equity in earnings of non-operating affiliates—net of taxes as a result of the remeasurement to fair value of our initial 50% equity interest in CF Fertilisers UK . (2) Represents the balance that was reclassified into interest income. (3) These components are included in the computation of net periodic pension cost and were reclassified from AOCI into cost of sales and selling, general and administrative expenses.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of key assumptions used to calculate fair value of each stock option award and resulting grant date fair values	The fair value of each stock option award is estimated using the Black-Scholes option valuation model. Key assumptions used and resulting grant date fair values are shown in the following table. 2017 2016 2015 Weighted-average assumptions: Expected term of stock options 4.3 Years 4.3 Years 4.3 Years Expected volatility 40% 39% 31% Risk-free interest rate 1.9% 1.2% 1.5% Expected dividend yield 3.9% 3.3% 1.9% Weighted-average grant date fair value $7.66 $8.97 $13.99
Summary of stock option activity under the plan	A summary of stock option activity during the year ended December 31, 2017 is presented below: Shares Weighted- Average Exercise Price Outstanding as of December 31, 2016 4,905,272 $ 40.18 Granted 1,790,100 31.00 Exercised (90,938 ) 16.48 Forfeited (104,424 ) 34.96 Expired (67,276 ) 48.15 Outstanding as of December 31, 2017 6,432,734 37.97 Exercisable as of December 31, 2017 3,568,992 40.16
Summary of selected amounts pertaining to stock option exercises	Selected amounts pertaining to stock option exercises are as follows: 2017 2016 2015 (in millions) Cash received from stock option exercises $ 1 $ — $ 8 Actual tax benefit realized from stock option exercises $ 1 $ — $ 2 Pre-tax intrinsic value of stock options exercised $ 2 $ — $ 8
Summary of information about stock options outstanding and exercisable	The following table summarizes information about stock options outstanding and exercisable as of December 31, 2017 : Options Outstanding Options Exercisable Range of Exercise Prices Shares Weighted- Average Remaining Contractual Term (years) Weighted- Average Exercise Price Aggregate Intrinsic Value (1) (in millions) Shares Weighted- Average Remaining Contractual Term (years) Weighted- Average Exercise Price Aggregate Intrinsic Value (1) (in millions) $ 9.73 - $20.00 502,120 2.2 $ 15.39 $ 14 502,120 2.2 $ 15.39 $ 14 $20.01 - $62.25 5,930,614 7.2 39.88 36 3,066,872 5.6 44.22 10 6,432,734 6.8 37.97 $ 50 3,568,992 5.4 40.16 $ 24 _______________________________________________________________________________ (1) The aggregate intrinsic value represents the total pre-tax intrinsic value, based on our closing stock price of $42.54 as of December 31, 2017 , which would have been received by the option holders had all option holders exercised their options as of that date.
Summary of restricted stock activity under the Plan	A summary of restricted stock activity during the year ended December 31, 2017 is presented below: Restricted Stock Awards Restricted Stock Units Performance Share Units Shares Weighted- Average Grant-Date Fair Value Shares Weighted- Average Grant-Date Fair Value Shares Weighted-Average Grant-Date Fair Value Outstanding as of December 31, 2016 41,645 $ 27.85 158,723 $ 44.38 106,715 $ 59.48 Granted 51,258 27.31 159,220 31.20 61,550 45.37 Restrictions lapsed (vested) (1) (41,645 ) 27.85 (42,575 ) 49.55 (25,625 ) 77.65 Forfeited — — (5,123 ) 39.98 (2,059 ) 72.98 Outstanding as of December 31, 2017 51,258 27.31 270,245 35.88 140,581 49.79
Summary of selected amounts pertaining to restricted stock that vested	Selected amounts pertaining to restricted stock awards that vested are as follows: Year ended December 31, 2017 2016 2015 (in millions) Actual tax benefit realized from restricted stock vested $ 1 $ 1 $ 1 Fair value of restricted stock vested $ 2 $ 2 $ 5
Summary of stock-based compensation costs and related income tax benefits	The following table summarizes stock-based compensation costs and related income tax benefits. Year ended December 31, 2017 2016 2015 (in millions) Stock-based compensation expense $ 17 $ 19 $ 17 Income tax benefit (6 ) (7 ) (6 ) Stock-based compensation expense, net of income taxes $ 11 $ 12 $ 11

Segment Disclosures (Tables)

Segment Disclosures (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Summary of segment data for sales, cost of sales and gross margin	Segment data for sales, cost of sales and gross margin for 2017 , 2016 and 2015 are presented in the tables below. Ammonia Granular Urea (1) UAN (1) AN (1) Other (1) Consolidated (in millions) Year ended December 31, 2017 Net sales $ 1,209 $ 971 $ 1,134 $ 497 $ 319 $ 4,130 Cost of sales 1,071 856 1,055 446 272 3,700 Gross margin $ 138 $ 115 $ 79 $ 51 $ 47 430 Total other operating costs and expenses 210 Equity in earnings of operating affiliates 9 Operating earnings $ 229 Year ended December 31, 2016 Net sales $ 981 $ 831 $ 1,196 $ 411 $ 266 $ 3,685 Cost of sales 715 584 920 409 217 2,845 Gross margin $ 266 $ 247 $ 276 $ 2 $ 49 840 Total other operating costs and expenses 561 Equity in losses of operating affiliates (145 ) Operating earnings $ 134 Year ended December 31, 2015 Net sales $ 1,523 $ 788 $ 1,480 $ 294 $ 223 $ 4,308 Cost of sales 884 469 955 291 162 2,761 Gross margin $ 639 $ 319 $ 525 $ 3 $ 61 1,547 Total other operating costs and expenses 319 Equity in losses of operating affiliates (35 ) Operating earnings $ 1,193 _______________________________________________________________________________ (1) The cost of ammonia that is upgraded into other products is transferred at cost into the upgraded product results.
Schedule of segment depreciation, depletion and amortization	Ammonia Granular Urea UAN AN Other Corporate Consolidated (in millions) Depreciation and amortization Year ended December 31, 2017 $ 183 $ 246 $ 265 $ 85 $ 57 $ 47 $ 883 Year ended December 31, 2016 $ 96 $ 112 $ 247 $ 93 $ 46 $ 84 $ 678 Year ended December 31, 2015 $ 95 $ 51 $ 192 $ 66 $ 35 $ 41 $ 480
Schedule of enterprise-wide data by geographic region	Enterprise-wide data by geographic region is as follows: Year ended December 31, 2017 2016 2015 (in millions) Sales by geographic region (based on destination of shipments): United States $ 2,851 $ 2,728 $ 3,485 Foreign: Canada 352 349 490 United Kingdom 427 394 153 Other foreign 500 214 180 Total foreign 1,279 957 823 Consolidated $ 4,130 $ 3,685 $ 4,308 December 31, 2017 2016 2015 (in millions) Property, plant and equipment—net by geographic region: United States $ 7,921 $ 8,444 $ 7,202 Foreign: Canada 551 523 497 United Kingdom 703 685 840 Total foreign 1,254 1,208 1,337 Consolidated $ 9,175 $ 9,652 $ 8,539

Supplemental Cash Flow Inform52

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Summary of additional information relating to cash flow activities	The following provides additional information relating to cash flow activities: Year ended December 31, 2017 2016 2015 (in millions) Cash paid during the year for Interest—net of interest capitalized $ 311 $ 144 $ 100 Income taxes—net of refunds (807 ) (110 ) 435 Supplemental disclosure of noncash investing and financing activities: Change in capitalized expenditures in accounts payable and accrued expenses (179 ) (263 ) 258 Change in capitalized expenditures in other liabilities — (55 ) 6 Change in noncontrolling interests in other liabilities — 8 — Change in accrued share repurchases — — (29 )

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2017
Leases, Operating [Abstract]
Summary of future minimum payments under noncancelable operating leases, barge charters and storage agreements	Future minimum payments under noncancelable operating leases with initial or remaining noncancelable lease terms in excess of one year as of December 31, 2017 are shown below. Operating Lease Payments (in millions) 2018 $ 83 2019 77 2020 57 2021 47 2022 36 Thereafter 76 $ 376

Quarterly Data-Unaudited (Table

Quarterly Data-Unaudited (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Schedule of operating results	The following tables present the unaudited quarterly results of operations for the eight quarters ended December 31, 2017 . This quarterly information has been prepared on the same basis as the consolidated financial statements and, in the opinion of management, reflects all adjustments necessary for the fair representation of the information for the periods presented. This data should be read in conjunction with the audited consolidated financial statements and related disclosures. Operating results for any quarter apply to that quarter only and are not necessarily indicative of results for any future period. Three months ended, March 31 June 30 September 30 December 31 Full Year (in millions, except per share amounts) 2017 Net sales $ 1,037 $ 1,124 $ 870 $ 1,099 $ 4,130 Gross margin 106 172 9 143 430 Unrealized (losses) gains on natural gas derivatives (1) (53 ) (18 ) 7 3 (61 ) Net (loss) earnings attributable to common stockholders (2) (23 ) 3 (87 ) 465 358 Net (loss) earnings per share attributable to common stockholders (2) Basic (3) (0.10 ) 0.01 (0.37 ) 1.99 1.53 Diluted (3) (0.10 ) 0.01 (0.37 ) 1.98 1.53 2016 Net sales $ 1,004 $ 1,134 $ 680 $ 867 $ 3,685 Gross margin 217 527 2 94 840 Unrealized (losses) gains on natural gas derivatives (1) (21 ) 211 (21 ) 91 260 Net earnings (loss) attributable to common stockholders (4) 26 47 (30 ) (320 ) (277 ) Net earnings (loss) per share attributable to common stockholders (4) Basic (3) 0.11 0.20 (0.13 ) (1.38 ) (1.19 ) Diluted (3) 0.11 0.20 (0.13 ) (1.38 ) (1.19 ) _______________________________________________________________________________ (1) Amounts represent pre-tax unrealized (losses) gains on natural gas derivatives, which are included in gross margin. See Note 14—Derivative Financial Instruments for additional information. (2) For the three months ended December 31, 2017 , net earnings attributable to common stockholders includes the Tax Reform impact of $491 million that is included in income tax benefit, and net earnings per share attributable to common stockholders, basic and diluted, include the per share impact of $2.09 . See Note 9—Income Taxes for additional information. (3) The sum of the four quarters is not necessarily the same as the total for the year. (4) For the three months ended September 30, 2016, net loss attributable to common stockholders includes an after-tax loss of $14 million (pre-tax loss of $22 million ) resulting from recognizing the value of an embedded derivative liability to reflect our credit evaluation that is included in other operating—net, and net loss per share attributable to common stockholders, basic and diluted, include the per share impact of $0.06 . See Note 8—Fair Value Measurements and Note 16—Noncontrolling Interests for additional information. For the three months ended December 31, 2016 , net loss attributable to common stockholders includes an after-tax impairment charge of $134 million on our equity method investment in PLNL that is included in equity in (loss) earnings of operating affiliates, and net loss per share attributable to common stockholders, basic and diluted, include the per share impact of $0.57 . See Note 7—Equity Method Investments and Note 8—Fair Value Measurements for additional information.

Condensed Consolidating Finan55

Condensed Consolidating Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2017
Condensed Consolidating Financial Statements
Schedule of Condensed Consolidating Statements of Operations	Condensed Consolidating Statement of Operations Year ended December 31, 2015 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net sales $ — $ 462 $ 4,101 $ 2,464 $ (2,719 ) $ 4,308 Cost of sales — 361 3,186 1,933 (2,719 ) 2,761 Gross margin — 101 915 531 — 1,547 Selling, general and administrative expenses 4 8 120 38 — 170 Transaction costs 46 — 7 4 — 57 Other operating—net — (8 ) 29 71 — 92 Total other operating costs and expenses 50 — 156 113 — 319 Equity in loss of operating affiliates — — — (35 ) — (35 ) Operating (loss) earnings (50 ) 101 759 383 — 1,193 Interest expense — 285 14 (70 ) (96 ) 133 Interest income — (69 ) (25 ) (4 ) 96 (2 ) Net earnings of wholly owned subsidiaries (731 ) (802 ) (403 ) — 1,936 — Other non-operating—net — — 5 (1 ) — 4 Earnings before income taxes and equity in earnings of non-operating affiliates 681 687 1,168 458 (1,936 ) 1,058 Income tax (benefit) provision (19 ) (44 ) 385 74 — 396 Equity in earnings of non-operating affiliates—net of taxes — — 10 62 — 72 Net earnings 700 731 793 446 (1,936 ) 734 Less: Net earnings attributable to noncontrolling interest — — — 34 — 34 Net earnings attributable to common stockholders $ 700 $ 731 $ 793 $ 412 $ (1,936 ) $ 700 Condensed Consolidating Statement of Operations Year ended December 31, 2017 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net sales $ — $ 442 $ 3,257 $ 3,380 $ (2,949 ) $ 4,130 Cost of sales — 278 3,386 2,985 (2,949 ) 3,700 Gross margin — 164 (129 ) 395 — 430 Selling, general and administrative expenses 4 (4 ) 113 79 — 192 Other operating—net — 2 3 13 — 18 Total other operating costs and expenses 4 (2 ) 116 92 — 210 Equity in (loss) earnings of operating affiliates — (3 ) — 12 — 9 Operating (loss) earnings (4 ) 163 (245 ) 315 — 229 Interest expense — 318 37 5 (45 ) 315 Interest income — (33 ) (11 ) (13 ) 45 (12 ) Loss on debt extinguishment — 53 — — — 53 Net loss (earnings) of wholly owned subsidiaries 361 1,091 (204 ) — (1,248 ) — Other non-operating—net — — (1 ) (1 ) — (2 ) (Loss) earnings before income taxes (365 ) (1,266 ) (66 ) 324 1,248 (125 ) Income tax (benefit) provision (723 ) (905 ) 1,037 16 — (575 ) Net earnings (loss) 358 (361 ) (1,103 ) 308 1,248 450 Less: Net earnings attributable to noncontrolling interests — — — 92 — 92 Net earnings (loss) attributable to common stockholders $ 358 $ (361 ) $ (1,103 ) $ 216 $ 1,248 $ 358 Condensed Consolidating Statement of Operations Year ended December 31, 2016 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net sales $ — $ 362 $ 2,932 $ 2,939 $ (2,548 ) $ 3,685 Cost of sales — 207 2,806 2,380 (2,548 ) 2,845 Gross margin — 155 126 559 — 840 Selling, general and administrative expenses 4 9 105 56 — 174 Transaction costs (46 ) — 223 2 — 179 Other operating—net — 7 30 171 — 208 Total other operating costs and expenses (42 ) 16 358 229 — 561 Equity in loss of operating affiliates — — — (145 ) — (145 ) Operating earnings (losses) 42 139 (232 ) 185 — 134 Interest expense — 347 85 (155 ) (77 ) 200 Interest income — (49 ) (8 ) (25 ) 77 (5 ) Loss on debt extinguishment — 167 — — — 167 Net loss (earnings) of wholly owned subsidiaries 304 92 (315 ) — (81 ) — Other non-operating—net — — — (2 ) — (2 ) (Loss) earnings before income taxes (262 ) (418 ) 6 367 81 (226 ) Income tax provision (benefit) 15 (114 ) 18 13 — (68 ) Net (loss) earnings (277 ) (304 ) (12 ) 354 81 (158 ) Less: Net earnings attributable to noncontrolling interest — — — 119 — 119 Net (loss) earnings attributable to common stockholders $ (277 ) $ (304 ) $ (12 ) $ 235 $ 81 $ (277 )
Schedule of Condensed Consolidating Statements of Comprehensive Income	Condensed Consolidating Statement of Comprehensive Income (Loss) Year ended December 31, 2017 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net earnings (loss) $ 358 $ (361 ) $ (1,103 ) $ 308 $ 1,248 $ 450 Other comprehensive income 135 135 91 130 (356 ) 135 Comprehensive income (loss) 493 (226 ) (1,012 ) 438 892 585 Less: Comprehensive income attributable to noncontrolling interests — — — 92 — 92 Comprehensive income (loss) attributable to common stockholders $ 493 $ (226 ) $ (1,012 ) $ 346 $ 892 $ 493 Condensed Consolidating Statement of Comprehensive (Loss) Income Year ended December 31, 2016 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net (loss) earnings $ (277 ) $ (304 ) $ (12 ) $ 354 $ 81 $ (158 ) Other comprehensive loss (148 ) (148 ) (68 ) (134 ) 350 (148 ) Comprehensive (loss) income (425 ) (452 ) (80 ) 220 431 (306 ) Less: Comprehensive income attributable to noncontrolling interest — — — 119 — 119 Comprehensive (loss) income attributable to common stockholders $ (425 ) $ (452 ) $ (80 ) $ 101 $ 431 $ (425 ) Condensed Consolidating Statement of Comprehensive Income Year ended December 31, 2015 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Net earnings $ 700 $ 731 $ 793 $ 446 $ (1,936 ) $ 734 Other comprehensive loss (90 ) (90 ) (98 ) (96 ) 284 (90 ) Comprehensive income 610 641 695 350 (1,652 ) 644 Less: Comprehensive income attributable to noncontrolling interest — — — 34 — 34 Comprehensive income attributable to common stockholders $ 610 $ 641 $ 695 $ 316 $ (1,652 ) $ 610
Schedule of Condensed Consolidating Balance Sheets	Condensed Consolidating Balance Sheet December 31, 2017 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations and Reclassifications Consolidated (in millions) Assets Current assets: Cash and cash equivalents $ — $ 15 $ 388 $ 432 $ — $ 835 Accounts and notes receivable—net 743 1,553 2,670 768 (5,427 ) 307 Inventories — 4 104 167 — 275 Prepaid income taxes — — 33 — — 33 Other current assets — — 10 5 — 15 Total current assets 743 1,572 3,205 1,372 (5,427 ) 1,465 Property, plant and equipment—net — — 123 9,052 — 9,175 Deferred income taxes — 8 — — (8 ) — Investments in affiliates 4,055 8,411 6,490 108 (18,956 ) 108 Goodwill — — 2,063 308 — 2,371 Other assets — 85 82 453 (276 ) 344 Total assets $ 4,798 $ 10,076 $ 11,963 $ 11,293 $ (24,667 ) $ 13,463 Liabilities and Equity Current liabilities: Accounts and notes payable and accrued expenses $ 1,219 $ 1,314 $ 2,658 $ 708 $ (5,427 ) $ 472 Income taxes payable — — — 2 — 2 Customer advances — — 89 — — 89 Other current liabilities — — 14 3 — 17 Total current liabilities 1,219 1,314 2,761 713 (5,427 ) 580 Long-term debt — 4,692 198 78 (276 ) 4,692 Deferred income taxes — — 876 179 (8 ) 1,047 Other liabilities — 16 243 201 — 460 Equity: Stockholders' equity: Preferred stock — — — — — — Common stock 2 — — 4,738 (4,738 ) 2 Paid-in capital 1,397 1,854 9,505 1,783 (13,142 ) 1,397 Retained earnings 2,443 2,463 (1,432 ) 709 (1,740 ) 2,443 Treasury stock — — — — — — Accumulated other comprehensive loss (263 ) (263 ) (180 ) (221 ) 664 (263 ) Total stockholders' equity 3,579 4,054 7,893 7,009 (18,956 ) 3,579 Noncontrolling interests — — (8 ) 3,113 — 3,105 Total equity 3,579 4,054 7,885 10,122 (18,956 ) 6,684 Total liabilities and equity $ 4,798 $ 10,076 $ 11,963 $ 11,293 $ (24,667 ) $ 13,463 Condensed Consolidating Balance Sheet December 31, 2016 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations and Reclassifications Consolidated (in millions) Assets Current assets: Cash and cash equivalents $ — $ 36 $ 878 $ 250 $ — $ 1,164 Restricted cash — — — 5 — 5 Accounts and notes receivable—net 20 1,259 1,418 495 (2,956 ) 236 Inventories — — 164 175 — 339 Prepaid income taxes — — 839 2 — 841 Other current assets — — 59 11 — 70 Total current assets 20 1,295 3,358 938 (2,956 ) 2,655 Property, plant and equipment—net — — 131 9,521 — 9,652 Investments in affiliates 3,711 9,370 6,019 139 (19,100 ) 139 Due from affiliates 571 — — — (571 ) — Goodwill — — 2,064 281 — 2,345 Other assets — 85 101 385 (231 ) 340 Total assets $ 4,302 $ 10,750 $ 11,673 $ 11,264 $ (22,858 ) $ 15,131 Liabilities and Equity Current liabilities: Accounts and notes payable and accrued expenses $ 954 $ 418 $ 1,505 $ 717 $ (2,956 ) $ 638 Income taxes payable — — — 1 — 1 Customer advances — — 42 — — 42 Other current liabilities — — 5 — — 5 Total current liabilities 954 418 1,552 718 (2,956 ) 686 Long-term debt — 5,903 39 67 (231 ) 5,778 Deferred income taxes — 90 1,374 166 — 1,630 Due to affiliates — 571 — — (571 ) — Other liabilities — 59 270 216 — 545 Equity: Stockholders' equity: Preferred stock — — — — — — Common stock 2 — — 4,383 (4,383 ) 2 Paid-in capital 1,380 (13 ) 9,045 2,246 (11,278 ) 1,380 Retained earnings 2,365 4,120 (329 ) 668 (4,459 ) 2,365 Treasury stock (1 ) — — — — (1 ) Accumulated other comprehensive loss (398 ) (398 ) (271 ) (351 ) 1,020 (398 ) Total stockholders' equity 3,348 3,709 8,445 6,946 (19,100 ) 3,348 Noncontrolling interests — — (7 ) 3,151 — 3,144 Total equity 3,348 3,709 8,438 10,097 (19,100 ) 6,492 Total liabilities and equity $ 4,302 $ 10,750 $ 11,673 $ 11,264 $ (22,858 ) $ 15,131
Schedule of Condensed Consolidating Statements of Cash Flows	Condensed Consolidating Statement of Cash Flows Year ended December 31, 2017 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Operating Activities: Net earnings (loss) $ 358 $ (361 ) $ (1,103 ) $ 308 $ 1,248 $ 450 Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities: Depreciation and amortization — 13 22 848 — 883 Deferred income taxes — — (599 ) (2 ) — (601 ) Stock-based compensation expense 17 — — — — 17 Unrealized net loss on natural gas derivatives — — 51 10 — 61 Loss on embedded derivative — — 4 — — 4 Gain on sale of equity method investment — — — (14 ) — (14 ) Loss on debt extinguishment — 53 — — — 53 Loss on disposal of property, plant and equipment — — — 3 — 3 Undistributed losses (earnings) of affiliates—net 361 1,091 (204 ) 3 (1,248 ) 3 Changes in: Intercompany accounts receivable/accounts payable—net (736 ) (1,297 ) 1,527 506 — — Accounts receivable—net — — (51 ) (6 ) — (57 ) Inventories — (4 ) 60 (16 ) — 40 Accrued and prepaid income taxes (1 ) (60 ) 1,217 (347 ) — 809 Accounts and notes payable and accrued expenses — 228 27 (256 ) — (1 ) Customer advances — — 48 — — 48 Other—net — (5 ) (32 ) (30 ) — (67 ) Net cash (used in) provided by operating activities (1 ) (342 ) 967 1,007 — 1,631 Investing Activities: Additions to property, plant and equipment — — (12 ) (461 ) — (473 ) Proceeds from sale of property, plant and equipment — — — 20 — 20 Proceeds from sale of equity method investment — — — 16 — 16 Distributions received from unconsolidated affiliates — — 179 (165 ) — 14 Proceeds from sale of auction rate securities — 9 — — — 9 Withdrawals from restricted cash funds — — — 5 — 5 Other—net — — — 1 — 1 Net cash provided by (used in) investing activities — 9 167 (584 ) — (408 ) Financing Activities: Long-term debt—net — (125 ) 150 (25 ) — — Payments of long-term borrowings — (1,148 ) — — — (1,148 ) Short-term debt—net 280 1,584 (1,870 ) 6 — — Payment to CHS related to credit provision — — (5 ) — — (5 ) Financing fees — (1 ) — — — (1 ) Dividends paid on common stock (280 ) — — (103 ) 103 (280 ) Distributions to noncontrolling interests — — — (131 ) — (131 ) Issuances of common stock under employee stock plans 1 — — — — 1 Dividends to/from affiliates — 2 101 — (103 ) — Net cash provided by (used in) financing activities 1 312 (1,624 ) (253 ) — (1,564 ) Effect of exchange rate changes on cash and cash equivalents — — — 12 — 12 (Decrease) increase in cash and cash equivalents — (21 ) (490 ) 182 — (329 ) Cash and cash equivalents at beginning of period — 36 878 250 — 1,164 Cash and cash equivalents at end of period $ — $ 15 $ 388 $ 432 $ — $ 835 Condensed Consolidating Statement of Cash Flows Year ended December 31, 2016 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Operating Activities: Net (loss) earnings $ (277 ) $ (304 ) $ (12 ) $ 354 $ 81 $ (158 ) Adjustments to reconcile net (loss) earnings to net cash provided by (used in) operating activities: Depreciation and amortization — 21 55 602 — 678 Deferred income taxes — — 740 (1 ) — 739 Stock-based compensation expense 18 — — 1 — 19 Unrealized net gain on natural gas derivatives — — (225 ) (35 ) — (260 ) Loss on embedded derivative — — 23 — — 23 Impairment of equity method investment in PLNL — — — 134 — 134 Loss on debt extinguishment — 167 — — — 167 Loss on disposal of property, plant and equipment — — 2 8 — 10 Undistributed losses (earnings) of affiliates—net 304 92 (315 ) 9 (81 ) 9 Changes in: Intercompany accounts receivable/accounts payable—net (4 ) (10 ) 308 (294 ) — — Accounts receivable—net — 44 (11 ) (15 ) — 18 Inventories — — (8 ) 1 — (7 ) Accrued and prepaid income taxes — — (682 ) 6 — (676 ) Accounts and notes payable and accrued expenses (8 ) (63 ) (12 ) 65 — (18 ) Customer advances — — (120 ) — — (120 ) Other—net — (6 ) (17 ) 82 — 59 Net cash provided by (used in) operating activities 33 (59 ) (274 ) 917 — 617 Investing Activities: Additions to property, plant and equipment — — (25 ) (2,186 ) — (2,211 ) Proceeds from sale of property, plant and equipment — — 4 10 — 14 Withdrawals from restricted cash funds — — — 18 — 18 Investments in unconsolidated affiliates — (44 ) (649 ) — 693 — Other—net — 6 — (4 ) — 2 Net cash used in investing activities — (38 ) (670 ) (2,162 ) 693 (2,177 ) Financing Activities: Long-term debt—net — 125 — (125 ) — — Proceeds from long-term borrowings — 1,244 — — — 1,244 Payments of long-term borrowings — (1,170 ) — — — (1,170 ) Short-term debt—net 106 (40 ) (371 ) 305 — — Proceeds from short-term borrowings — 150 — — — 150 Payments on short-term borrowings — (150 ) — — — (150 ) Payment to CHS related to credit provision — — (5 ) — — (5 ) Financing fees — (31 ) — — — (31 ) Dividends paid on common stock (280 ) (140 ) (140 ) (222 ) 502 (280 ) Issuance of noncontrolling interest in CFN — — — 2,800 — 2,800 Distributions to noncontrolling interest — — — (119 ) — (119 ) Distribution received for CHS strategic venture — — 2,000 (2,000 ) — — Dividends to/from affiliates 140 145 217 — (502 ) — Other—net — — — 693 (693 ) — Net cash (used in) provided by financing activities (34 ) 133 1,701 1,332 (693 ) 2,439 Effect of exchange rate changes on cash and cash equivalents — — — (1 ) — (1 ) (Decrease) increase in cash and cash equivalents (1 ) 36 757 86 — 878 Cash and cash equivalents at beginning of period 1 — 121 164 — 286 Cash and cash equivalents at end of period $ — $ 36 $ 878 $ 250 $ — $ 1,164 Condensed Consolidating Statement of Cash Flows Year ended December 31, 2015 Parent CF Industries Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (in millions) Operating Activities: Net earnings $ 700 $ 731 $ 793 $ 446 $ (1,936 ) $ 734 Adjustments to reconcile net earnings to net cash (used in) provided by operating activities: Depreciation and amortization — 14 19 447 — 480 Deferred income taxes — 17 75 (14 ) — 78 Stock-based compensation expense 16 — — 1 — 17 Unrealized net loss on natural gas and foreign currency derivatives — — 139 24 — 163 Gain on remeasurement of CF Fertilisers UK investment — — — (94 ) — (94 ) Impairment of equity method investment in PLNL — — — 62 — 62 Loss on sale of equity method investments — — — 43 — 43 Loss on disposal of property, plant and equipment — — — 21 — 21 Undistributed earnings of affiliates—net (732 ) (802 ) (402 ) (3 ) 1,936 (3 ) Due to / from affiliates—net 2 1 (135 ) 132 — — Changes in: Intercompany accounts receivable/accounts payable—net (1 ) (104 ) 96 9 — — Accounts receivable—net — (45 ) 50 (9 ) — (4 ) Inventories — — (38 ) (33 ) — (71 ) Accrued and prepaid income taxes 2 (11 ) (105 ) (34 ) — (148 ) Accounts and notes payable and accrued expenses 9 61 14 (42 ) — 42 Customer advances — — (164 ) — — (164 ) Other—net — 31 54 (34 ) — 51 Net cash (used in) provided by operating activities (4 ) (107 ) 396 922 — 1,207 Investing Activities: Additions to property, plant and equipment — — (26 ) (2,443 ) — (2,469 ) Proceeds from sale of property, plant and equipment — — — 12 — 12 Proceeds from sale of equity method investment — — — 13 — 13 Purchase of CF Fertilisers UK, net of cash acquired — — — (552 ) — (552 ) Withdrawals from restricted cash funds — — — 63 — 63 Other—net — (82 ) (44 ) 1 82 (43 ) Net cash used in investing activities — (82 ) (70 ) (2,906 ) 82 (2,976 ) Financing Activities: Proceeds from long-term borrowings — 1,000 — — — 1,000 Short-term debt—net 554 (870 ) (1,431 ) 1,747 — — Financing fees — (47 ) — — — (47 ) Dividends paid on common stock (282 ) (282 ) (282 ) (268 ) 832 (282 ) Dividends to/from affiliates 282 282 268 — (832 ) — Distributions to noncontrolling interest — — — (45 ) — (45 ) Purchases of treasury stock (556 ) — — — — (556 ) Shares withheld for taxes (1 ) — — — — (1 ) Issuances of common stock under employee stock plans 8 — — — — 8 Other—net — — — 82 (82 ) — Net cash provided by (used in) by financing activities 5 83 (1,445 ) 1,516 (82 ) 77 Effect of exchange rate changes on cash and cash equivalents — — — (19 ) — (19 ) Increase (decrease) in cash and cash equivalents 1 (106 ) (1,119 ) (487 ) — (1,711 ) Cash and cash equivalents at beginning of period — 106 1,240 651 — 1,997 Cash and cash equivalents at end of period $ 1 $ — $ 121 $ 164 $ — $ 286

Background and Basis of Prese56

Background and Basis of Presentation (Details) $ / shares in Units, $ in Millions	Jul. 31, 2015USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2017USD ($)Manufacturing_complex	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Feb. 07, 2018$ / sharesshares	Sep. 30, 2017
Principal assets
Number of nitrogen fertilizer manufacturing facilities North America | Manufacturing_complex			4
Number of nitrogen fertilizer manufacturing facilities Canada | Manufacturing_complex			2
Gain on remeasurement of CF Fertilisers UK investment | $			$ 0	$ 0	$ 94
TNCLP
Principal assets
Parent ownership interest (as a percent)			75.30%
CF Industries Nitrogen, LLC
Principal assets
Ownership interest (as a percent)			89.00%
Operating equity method investments | Point Lisas Nitrogen Limited (PLNL)
Principal assets
Ownership interest (as a percent)			50.00%				50.00%
Terra | TNCLP
Principal assets
Parent ownership interest (as a percent)			75.30%
CF Fertilisers UK
Principal assets
Number of nitrogen complexes | Manufacturing_complex			2
Ownership interest (as a percent)		50.00%			50.00%
Business acquisition, percentage of voting interests acquired	50.00%
Total consideration | $	$ 570
Gain on remeasurement of CF Fertilisers UK investment | $		$ 94			$ 94
Business acquisition, initial percentage of ownership	50.00%
Terra Nitrogen GP Inc [Member] | Subsequent Event | Terra Nitrogen Company LP
Principal assets
business acquisition, number of units purchased | shares						4,612,562
Business Acquisition, Share Price | $ / shares						$ 84

Summary of Significant Accoun57

Summary of Significant Accounting Policies (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Feb. 07, 2018	Sep. 30, 2017
Cash equivalents:
Maximum original maturity period of highly liquid debt instruments to be considered as cash equivalents	3 months
Operating equity method investments | Point Lisas Nitrogen Limited (PLNL)
Consolidation and Noncontrolling Interest
Ownership interest (as a percent)	50.00%		50.00%
TNCLP
Consolidation and Noncontrolling Interest
Parent ownership interest (as a percent)	75.30%
Percentage of ownership interest held by outside investors	24.70%
Subsequent Event | Terra Nitrogen Company LP | Terra Nitrogen GP Inc [Member]
Consolidation and Noncontrolling Interest
business acquisition, number of units purchased		4,612,562
Business Acquisition, Share Price		$ 84
CF Industries Nitrogen, LLC
Consolidation and Noncontrolling Interest
Ownership interest (as a percent)	89.00%

Summary of Significant Accoun58

Summary of Significant Accounting Policies (Details 2)	12 Months Ended
	Dec. 31, 2017
Depreciable lives
Turnaround period	5 years
Mobile and office equipment | Minimum
Depreciable lives
Depreciable life	3 years
Mobile and office equipment | Maximum
Depreciable lives
Depreciable life	10 years
Production facilities and related assets | Minimum
Depreciable lives
Depreciable life	2 years
Production facilities and related assets | Maximum
Depreciable lives
Depreciable life	30 years
Land improvements | Minimum
Depreciable lives
Depreciable life	10 years
Land improvements | Maximum
Depreciable lives
Depreciable life	30 years
Buildings | Minimum
Depreciable lives
Depreciable life	10 years
Buildings | Maximum
Depreciable lives
Depreciable life	40 years

Summary of Significant Accoun59

Summary of Significant Accounting Policies (Details 3)	Dec. 31, 2017USD ($)
Non US Subsidiaries
Investment
Deferred tax liabilities, deferred expense	$ 0

Net Earnings Per Share (Details

Net Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Net earnings (loss) attributable to common stockholders	$ 465	$ (87)	$ 3	$ (23)	$ (320)	$ (30)	$ 47	$ 26	$ 358	$ (277)	$ 700
Basic earnings per common share:
Weighted-average common shares outstanding (in shares)									233.5	233.1	235.3
Net earnings attributable to common stockholders (in dollars per share)	$ 1.99	$ (0.37)	$ 0.01	$ (0.10)	$ (1.38)	$ (0.13)	$ 0.20	$ 0.11	$ 1.53	$ (1.19)	$ 2.97
Diluted earnings per common share:
Weighted-average common shares outstanding (in shares)									233.5	233.1	235.3
Dilutive common shares—stock options (in shares)									0.4	0	0.8
Diluted weighted-average shares outstanding (in shares)									233.9	233.1	236.1
Net earnings attributable to common stockholders (in dollars per share)	$ 1.98	$ (0.37)	$ 0.01	$ (0.10)	$ (1.38)	$ (0.13)	$ 0.20	$ 0.11	$ 1.53	$ (1.19)	$ 2.96
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									3.7	4.9	1.6

Property, Plant and Equipment61

Property, Plant and Equipment-Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment-Net
Gross property plant and equipment	$ 13,246	$ 12,891
Less: Accumulated depreciation and amortization	4,071	3,239
Net property, plant and equipment	9,175	9,652	$ 8,539
Construction in progress expenditures incurred but not yet paid	46	225
Accumulated depreciation, depletion and amortization related to property plant and equipment	848	607	444
Accrued expansion project costs		185
Land
Property, Plant and Equipment-Net
Gross property plant and equipment	71	69
Machinery and equipment
Property, Plant and Equipment-Net
Gross property plant and equipment	12,070	11,664
Changes in plant turnaround activity
Balance at the beginning of the period	206	220	153
Additions	100	74	135
Depreciation	(102)	(89)	(65)
Effect of exchange rate changes	4	1	(3)
Balance at the end of the period	208	206	$ 220
Buildings and improvements
Property, Plant and Equipment-Net
Gross property plant and equipment	882	878
Construction in Progress
Property, Plant and Equipment-Net
Gross property plant and equipment	$ 223	$ 280

Goodwill and Other Intangible62

Goodwill and Other Intangible Assets (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)
Goodwill [Roll Forward]
Balance at the beginning of the year	$ 2,345
Effect of exchange rate changes	26
Balance at the end of the year	2,371
Ammonia
Goodwill [Roll Forward]
Balance at the beginning of the year	585
Effect of exchange rate changes	2
Balance at the end of the year	587
Granular Urea
Goodwill [Roll Forward]
Balance at the beginning of the year	828
Effect of exchange rate changes	1
Balance at the end of the year	829
UAN
Goodwill [Roll Forward]
Balance at the beginning of the year	576
Effect of exchange rate changes	0
Balance at the end of the year	576
AN
Goodwill [Roll Forward]
Balance at the beginning of the year	286
Effect of exchange rate changes	20
Balance at the end of the year	306
Other
Goodwill [Roll Forward]
Balance at the beginning of the year	70
Effect of exchange rate changes	3
Balance at the end of the year	$ 73

Goodwill and Other Intangible63

Goodwill and Other Intangible Assets (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2015
Identifiable intangibles
Gross Carrying Amount	$ 174	$ 164
Accumulated Amortization	(45)	(36)
Net	$ 129	128
Finite-lived intangible asset, useful life	20 years
Amortization expense	$ 9	7	$ 10
Customer relationships
Identifiable intangibles
Gross Carrying Amount	132	125
Accumulated Amortization	(31)	(24)
Net	101	101
TerraCair brand
Identifiable intangibles
Gross Carrying Amount	10	10
Accumulated Amortization	(10)	(10)
Net	0	0
Trade names
Identifiable intangibles
Gross Carrying Amount	32	29
Accumulated Amortization	(4)	(2)
Net	$ 28	$ 27
CF Fertilisers UK
Identifiable intangibles
Business acquisition, percentage of voting interests acquired				50.00%

Goodwill and Other Intangible64

Goodwill and Other Intangible Assets (Details 3) $ in Millions	Dec. 31, 2017USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2,018	$ 8
2,019	8
2,020	8
2,021	8
2,022	$ 8

Equity Method Investments (Deta

Equity Method Investments (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2017	Sep. 30, 2015	Jul. 31, 2015
Equity method investments
Less: Net earnings attributable to noncontrolling interests				$ 92	$ 119	$ 34
Investments in and advances to affiliates	$ 139			108	139
Equity in earnings of operating affiliates:
Total equity in earnings of operating affiliates				9	(145)	(35)
Equity in earnings of non-operating affiliates—net of taxes				0	0	72
Impairment of equity method investment in PLNL				0	134	62
Gain on remeasurement of CF Fertilisers UK investment				$ 0	$ 0	(94)
Operating equity method investments | Point Lisas Nitrogen Limited (PLNL)
Equity method investments
Obligation to purchase ammonia (percent)				50.00%
Ownership interest (as a percent)				50.00%			50.00%
Equity in earnings of operating affiliates:
Impairment of equity method investment in PLNL	134					$ 62
Carrying value of investments in excess of the entity's share of the affiliates' book value							$ 55
Obligation to purchase ammonia (description)				50% of the ammonia produced by PLNL
Equity Method Investment, Realized Gain (Loss) on Disposal, Net of Tax	$ 134	$ 62
Non-operating equity method investments | Keytrade AG
Equity method investments
Ownership interest (as a percent)								50.00%
Equity in earnings of operating affiliates:
Equity Method Investment, Realized Gain (Loss) on Disposal, Net of Tax			$ (29)
CF Fertilisers UK
Equity method investments
Ownership interest (as a percent)		50.00%				50.00%
Business acquisition, percentage of voting interests acquired									50.00%
Equity in earnings of operating affiliates:
Gain on remeasurement of CF Fertilisers UK investment		$ (94)				$ (94)
Maximum | Property, plant and equipment | Operating equity method investments
Equity in earnings of operating affiliates:
Finite Lived Tangible and Intangible Assets Revaluation Increased Basis Depreciation Period				15 years
Maximum | Gas contract | Operating equity method investments
Equity in earnings of operating affiliates:
Finite Lived Tangible and Intangible Assets Revaluation Increased Basis Depreciation Period				3 months

Equity Method Investments -Narr

Equity Method Investments -Narrative (Details) - USD ($) $ in Millions	Jul. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2017	Sep. 30, 2015
Equity method investments
Impairment of equity method investment in PLNL						$ 0	$ 134	$ 62
Gain on Sale of Equity Investment		$ (14)
Investments in and advances to affiliates		$ 108	$ 139			108	139
Loss on sale of equity method investments						14	0	(43)
Equity in earnings of non-operating affiliates—net of taxes						$ 0	0	72
Operating equity method investments | Point Lisas Nitrogen Limited (PLNL)
Equity method investments
Impairment of equity method investment in PLNL			134					62
Ownership interest (as a percent)		50.00%				50.00%			50.00%
Equity Method Investments									$ 108
Carrying value of investments in excess of the entity's share of the affiliates' book value									$ 55
Obligation to purchase ammonia (description)						50% of the ammonia produced by PLNL
Obligation to purchase ammonia (percent)						50.00%
Purchases of ammonia from PLNL						$ 76	$ 62	$ 121
After-tax loss on disposal			$ 134	$ 62
Operating equity method investments | Maximum | Property, plant and equipment
Equity method investments
Finite Lived Tangible and Intangible Assets Revaluation Increased Basis Depreciation Period						15 years
Operating equity method investments | Maximum | Gas contract
Equity method investments
Finite Lived Tangible and Intangible Assets Revaluation Increased Basis Depreciation Period						3 months
Non-operating equity method investments | Keytrade AG
Equity method investments
Ownership interest (as a percent)										50.00%
After-tax loss on disposal					$ (29)
CF Fertilisers UK
Equity method investments
Ownership interest (as a percent)				50.00%				50.00%
Business acquisition, percentage of voting interests acquired	50.00%
Business acquisition, initial percentage of ownership	50.00%
Fair value of consideration transferred	$ 570
The Board of Inland Revenue [Member] | Operating equity method investments | Point Lisas Nitrogen Limited (PLNL)
Equity method investments
Tax Adjustments, Settlements, and Unusual Provisions						$ 7

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Investment
Cash	$ 120	$ 89
Cash equivalents:
Cash and cash equivalents, fair value	835	1,164
Total cash and cash equivalents	835	1,164
Restricted Cash, adjusted cost	0	5
Restricted cash		5
U.S. and Canadian government obligations
Cash equivalents:
Cash and cash equivalents, adjusted cost	710	1,075
Cash equivalents, fair value	710	1,075
Other debt obligations
Cash equivalents:
Cash and cash equivalents, adjusted cost	5
Cash equivalents, fair value	5
Nonqualified employee benefit trusts
Cash equivalents:
Available-for-sale securities, amortized cost	17	18
Available-for-sale securities, unrealized gain	2	1
Available-for-sale securities, fair value	19	19
Fair Value, Measurements, Recurring [Member]
Investment
Embedded Derivative, Fair Value of Embedded Derivative Liability	25	26
Cash equivalents:
Cash equivalents, fair value	715	1,075
Restricted cash		5
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets (Level 1)
Investment
Embedded Derivative, Fair Value of Embedded Derivative Liability	0	0
Cash equivalents:
Cash equivalents, fair value	715	1,075
Restricted cash		5
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Investment
Embedded Derivative, Fair Value of Embedded Derivative Liability	25	26
Cash equivalents:
Cash equivalents, fair value	0	0
Restricted cash		0
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3)
Investment
Embedded Derivative, Fair Value of Embedded Derivative Liability	0	0
Cash equivalents:
Cash equivalents, fair value	$ 0	0
Restricted cash		$ 0

Fair Value Measurements (Deta68

Fair Value Measurements (Details 2) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2017
Assets and liabilities measured at fair value on a recurring basis
Payment to CHS related to credit provision			$ (5)	$ (5)	$ 0
Impairment of equity method investment in PLNL			0	134	62
Restricted cash	$ 5			5
Loss on Embedded Derivative Instrument			4	23	0
Debt Instrument, Fair Value Disclosure [Abstract]
Long-term debt, Carrying Amount	5,778		4,692	5,778
Long-term debt, Fair Value	5,506		4,800	5,506
Recurring basis
Assets and liabilities measured at fair value on a recurring basis
Cash equivalents	1,075		715	1,075
Restricted cash	5			5
Derivative assets	56		1	56
Nonqualified employee benefit trusts	19		19	19
Derivative liabilities	(6)		(12)	(6)
Embedded Derivative, Fair Value of Embedded Derivative Liability	(26)		(25)	(26)
Recurring basis | Quoted Prices in Active Markets (Level 1)
Assets and liabilities measured at fair value on a recurring basis
Cash equivalents	1,075		715	1,075
Restricted cash	5			5
Derivative assets	0		0	0
Nonqualified employee benefit trusts	19		19	19
Derivative liabilities	0		0	0
Embedded Derivative, Fair Value of Embedded Derivative Liability	0		0	0
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets and liabilities measured at fair value on a recurring basis
Cash equivalents	0		0	0
Restricted cash	0			0
Derivative assets	56		1	56
Nonqualified employee benefit trusts	0		0	0
Derivative liabilities	(6)		(12)	(6)
Embedded Derivative, Fair Value of Embedded Derivative Liability	(26)		(25)	(26)
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets and liabilities measured at fair value on a recurring basis
Cash equivalents	0		0	0
Restricted cash	0			0
Derivative assets	0		0	0
Nonqualified employee benefit trusts	0		0	0
Derivative liabilities	0		0	0
Embedded Derivative, Fair Value of Embedded Derivative Liability	0		$ 0	$ 0
Point Lisas Nitrogen Limited (PLNL) | Operating equity method investments
Assets and liabilities measured at fair value on a recurring basis
Impairment of equity method investment in PLNL	134				$ 62
Equity Method Investment, Realized Gain (Loss) on Disposal, Net of Tax	$ 134	$ 62
Debt Instrument, Fair Value Disclosure [Abstract]
Equity Method Investments						$ 108

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Components of earnings before income taxes and equity in earnings of non-operating affiliates
Domestic	$ (186)	$ (43)	$ 1,031
Non-U.S.	61	(183)	27
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates	(125)	(226)	1,058
Current
Federal	(43)	(795)	258
Foreign	19	11	20
State	(6)	(23)	39
Total	(30)	(807)	317
Deferred
Federal	(44)	761	76
Foreign	(3)	(1)	(13)
State	(7)	(21)	16
Total	(54)	739	79
income tax expense (benefit) prior to Tax Cuts and Jobs Act of 2017	(84)	(68)	396
Current Federal Tax Expense (Benefit), incomplete accounting, Tax Cuts and Jobs Act of 2017	54	0	0
Current Foreign Tax Expense (Benefit), incomplete accounting, Tax Cuts and Jobs Act of 2017	0	0	0
Current State Tax Expense (Benefit), incomplete accounting, Tax Cuts and Jobs Act of 2017	3	0	0
Current Tax Expense (Benefit), incomplete accounting, Tax Cuts and Jobs Act of 2017	57	0	0
Income tax (benefit) provision	(575)	(68)	396
Deferred Federal Tax Expense (Benefit), incomplete accounting, Tax Cuts and Jobs Act of 2017	(548)	0	0
Deferred Foreign Tax Expense (Benefit), incomplete accounting, Tax Cuts and Jobs Act of 2017	0	0	0
Deferred State Tax Expense (Benefit), incomplete accounting, Tax Cuts and Jobs Act of 2017	0	0	0
Deferred Tax Expense (Benefit), incomplete accounting, Tax Cuts and Jobs Act of 2017	(548)	0	0
income tax expense (benefit) after Tax Cuts and Jobs Act of 2017	$ (491)	$ 0	$ 0

Income Taxes (Details 2)

Income Taxes (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates	$ (125)	$ (226)	$ 1,058
Expected tax (benefit) provision at U.S. statutory rate of 35%	(44)	(79)	370
State income taxes, net of federal	(21)	(33)	32
Net earnings attributable to noncontrolling interests	32	42	12
U.S. manufacturing profits deduction	(6)	(39)	17
Foreign tax rate differential	(6)	30	(17)
U.S. tax on foreign earnings	1	(10)	0
Valuation allowance	(3)	50	16
Non-deductible capital costs	0	(17)	18
Tax rate change	17	0	0
Other	(2)	(6)	6
U.S. enacted tax rate change (Tax Reform)	(552)
Transition tax liability and other (Tax Reform)	61
Income tax (benefit) provision	$ (575)	$ (68)	$ 396
Effective tax rate	457.20%	30.00%	37.40%
Income tax (benefit) provision before Tax Reform	$ (84)	$ (68)	$ 396
Effective tax rate before Tax Reform	67.00%	30.00%	37.00%

Income Taxes (Details 3)

Income Taxes (Details 3) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Deferred tax liability not recognized, undistributed earnings of foreign subsidiaries	$ 28
Deferred tax assets:
Net operating loss and capital loss carryforwards	359	$ 187
Retirement and other employee benefits	67	118
Unrealized loss on hedging derivatives	6	9
Intangible asset	5	34
Other	115	140
Gross deferred tax assets	552	488
Valuation allowance	(156)	(159)
Net deferred tax assets	396	329
Deferred tax liabilities:
Depreciation and amortization	(256)	(329)
Deferred Tax Liabilities, Investment in Noncontrolled Affiliates	(1,151)	(1,582)
Foreign earnings	(28)	(28)
Unrealized gain on hedging derivatives	0	(16)
Other	(8)	(4)
Deferred tax liabilities	1,443	1,959
Net deferred tax liability	(1,047)	(1,630)
Unrecognized tax benefits:
Beginning balance	134	155
Additions for tax positions taken during the current year	0	0
Additions for tax positions taken during prior years	0	2
Reductions related to lapsed statutes of limitations	(11)	(7)
Ending balance	122	134
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	$ 1	$ 16

Income Taxes (Details 4)

Income Taxes (Details 4) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2015
Operating Loss Carryforwards [Line Items]
Foreign deferred tax benefit					$ 5
Deferred income taxes	$ 1,630			$ 1,047	1,630
Gain on remeasurement of CF Fertilisers UK investment				0	0	$ 94
Income benefit on pre-tax loss on sale of equity method investments			$ 11.9
Income taxes receivable				22
Decrease in income taxes receivable				36
Deferred tax liability not recognized, undistributed earnings of foreign subsidiaries				28
Unrecognized tax benefits period increase (decrease)				12	21
Effect on effective tax rate if unrecognized tax benefits were recognized				91
Interest expense and penalties
Interest expense and penalties related to potential income taxes				2	4	4
Accrued interest expense and penalties
Amount recognized in consolidated balance sheets for accrued interest and penalties related to income taxes	28			29	28
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards				383
Operating loss carryforwards, valuation allowance				100
Operating loss carryforwards increase (decrease) valuation allowance	17			11	17
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Income taxes receivable	816				816
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Investment tax credit				13
Operating loss carryforwards	46			30	46
CF Fertilisers UK
Operating Loss Carryforwards [Line Items]
Business acquisition, initial percentage of ownership							50.00%
Gain on remeasurement of CF Fertilisers UK investment		$ 94				$ 94
Point Lisas Nitrogen Limited (PLNL) | Operating equity method investments
Operating Loss Carryforwards [Line Items]
After-tax loss on disposal	134	$ 62
Capital Loss Carryforward
Operating Loss Carryforwards [Line Items]
Tax credit carryforward				116
Tax credit carryforward valuation allowance	$ 29				$ 29
Tax Year 2017 [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards				145
Operating Loss Carryforwards, prior to the Tax Cuts and Jobs Act of 2017				242
Tax Year 2037 [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards				$ 692

Pension and Other Postretirem73

Pension and Other Postretirement Benefits (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)Pension_plan	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Jul. 31, 2015
Pension and Other Postretirement Benefits
Number of funded plans | Pension_plan	1
Number of funded plans closed to new employees | Pension_plan	1
North America
Change in plan assets
Fair value of plan assets at the beginning of the period	$ 636
Fair value of plan assets at the end of the period		$ 636
Change in benefit obligation
Benefit obligation at the beginning of the period	(759)
Benefit obligation at the end of the period		(759)
Amounts recognized in the consolidated balance sheets
Accrued expenses	$ 0	0
Canada
Pension and Other Postretirement Benefits
Number of funded plans | Pension_plan	2
United Kingdom
Pension and Other Postretirement Benefits
Number of funded plans | Pension_plan	2
Change in benefit obligation
Service cost	$ 0	0	$ 0
Interest cost	$ (16)	(19)	(9)
CF Fertilisers UK
Pension and Other Postretirement Benefits
Business acquisition, initial percentage of ownership				50.00%
United Kingdom Terra | United Kingdom
Pension and Other Postretirement Benefits
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Return Funds	55.00%
Amounts recognized in the consolidated balance sheets
Defined Benefit Plan, Target Plan Asset Allocations, Actively and Passively Managed Bond and Gilt Funds	30.00%
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Property Fund	15.00%
United Kingdom Kemira | United Kingdom
Pension and Other Postretirement Benefits
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Return Funds	50.00%
Amounts recognized in the consolidated balance sheets
Defined Benefit Plan, Target Plan Asset Allocations, Actively and Passively Managed Bond and Gilt Funds	45.00%
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Property Fund	5.00%
Pension Plans
Pension and Other Postretirement Benefits
Number of funded plans | Pension_plan	5
Amounts recognized in the consolidated balance sheets
Accrued expenses	$ 0
Pension Plans | North America
Pension and Other Postretirement Benefits
Number of funded plans | Pension_plan	3
Change in plan assets
Fair value of plan assets at the beginning of the period	$ 636	627
Return on plan assets	70	39
Employer contributions	63	4
Foreign currency translation	9	4
Fair value of plan assets at the end of the period	738	636	627
Change in benefit obligation
Benefit obligation at the beginning of the period	(759)	(736)
Service cost	(14)	(14)	(14)
Interest cost	(30)	(31)	(30)
Foreign currency translation	(9)	(3)
Change in assumptions and other	(33)	(13)
Benefit obligation at the end of the period	(805)	(759)	(736)
Funded status as of year end	(67)	(123)
Amounts recognized in the consolidated balance sheets
Other assets	10	7
Other liabilities	(77)	(130)
Amounts recognized in the consolidated balance sheets, total	(67)	(123)
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant	0	0
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	40	38
Defined Benefit Plan, Benefit Obligation, Benefits Paid	40	38
Pension Plans | United Kingdom
Change in plan assets
Fair value of plan assets at the beginning of the period	366	414
Return on plan assets	16	21
Employer contributions	19	19
Foreign currency translation	35	(69)
Fair value of plan assets at the end of the period	414	366	414
Change in benefit obligation
Benefit obligation at the beginning of the period	(559)	(563)
Service cost	0	0
Interest cost	(16)	(19)
Foreign currency translation	(52)	99
Change in assumptions and other	15	(95)
Benefit obligation at the end of the period	(590)	(559)	(563)
Funded status as of year end	(176)	(193)
Amounts recognized in the consolidated balance sheets
Other assets	0	0
Accrued expenses	0
Other liabilities	(176)	(193)
Amounts recognized in the consolidated balance sheets, total	(176)	(193)
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant	0	0
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	0	0
Defined Benefit Plan, Plan Assets, Benefits Paid	22	19
Defined Benefit Plan, Benefit Obligation, Benefits Paid	$ 22	19
Pension Plans | CF Canadian Plan [Member] | Canada
Pension and Other Postretirement Benefits
Defined Benefit Plan Target Allocation Percentage of Assets Non Equity Securities	60.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	40.00%
Pension Plans | Terra Canadian Plan [Member] | Canada
Pension and Other Postretirement Benefits
Defined Benefit Plan Target Allocation Percentage of Assets Non Equity Securities	85.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	15.00%
Retiree Medical | North America
Change in plan assets
Fair value of plan assets at the beginning of the period	$ 0	0
Return on plan assets	0	0
Employer contributions	5	4
Foreign currency translation	0	0
Fair value of plan assets at the end of the period	0	0	0
Change in benefit obligation
Benefit obligation at the beginning of the period	(52)	(56)
Service cost	0	0	0
Interest cost	(2)	(2)	(2)
Foreign currency translation	0	0
Change in assumptions and other	(4)	2
Benefit obligation at the end of the period	(53)	(52)	$ (56)
Funded status as of year end	(53)	(52)
Amounts recognized in the consolidated balance sheets
Accrued expenses	(4)	(5)
Other liabilities	(49)	(47)
Amounts recognized in the consolidated balance sheets, total	(53)	(52)
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant	1	1
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant	1	1
Defined Benefit Plan, Plan Assets, Benefits Paid	6	5
Defined Benefit Plan, Benefit Obligation, Benefits Paid	$ 6	$ 5
United States | Pension Plans
Pension and Other Postretirement Benefits
Defined Benefit Plan Target Allocation Percentage of Assets Non Equity Securities	80.00%
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	20.00%

Pension and Other Postretirem74

Pension and Other Postretirement Benefits (Details 2) - USD ($) $ in Millions	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
United Kingdom
Pre-tax amounts recognized in accumulated other comprehensive loss
Prior service cost (benefit)		$ 0	$ 0
Net actuarial loss		73	80
Pre-tax amounts recognized in accumulated other comprehensive loss, total		73	80
Net periodic benefit cost and other amounts recognized in accumulated other comprehensive loss:
Service cost		0	0	$ 0
Interest cost		16	19	9
Expected return on plan assets		(18)	(20)	(9)
Amortization of prior service cost (benefit)		0	0	0
Amortization of actuarial loss (gain)		1	0	0
Net periodic benefit cost (income)		(1)	(1)	0
Net actuarial (gain) loss		(13)	94	(8)
Amortization of prior service benefit		0	0	0
Amortization of actuarial (loss) gain		(1)	0	0
Total recognized in accumulated other comprehensive loss		(14)	94	(8)
Total recognized in net periodic benefit cost (income) and accumulated other comprehensive loss		$ (15)	93	(8)
United Kingdom | Subsequent Event
Assumptions used in determining the benefit obligations and expense:
Weighted average expected long-term rate of return on assets-expense (as a percent)	4.20%
United Kingdom | United Kingdom Terra
Current target asset allocation
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Return Funds		55.00%
Defined Benefit Plan, Target Plan Asset Allocations, Actively and Passively Managed Bond and Gilt Funds		30.00%
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Property Fund		15.00%
United Kingdom | United Kingdom Kemira
Current target asset allocation
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Return Funds		50.00%
Defined Benefit Plan, Target Plan Asset Allocations, Actively and Passively Managed Bond and Gilt Funds		45.00%
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Property Fund		5.00%
Pension Plans | North America
Pre-tax amounts recognized in accumulated other comprehensive loss
Prior service cost (benefit)		$ 1	1
Net actuarial loss		80	91
Pre-tax amounts recognized in accumulated other comprehensive loss, total		81	92
Net periodic benefit cost and other amounts recognized in accumulated other comprehensive loss:
Service cost		14	14	14
Interest cost		30	31	30
Expected return on plan assets		(26)	(30)	(28)
Amortization of prior service cost (benefit)		0	0	0
Amortization of actuarial loss (gain)		1	1	6
Net periodic benefit cost (income)		19	16	22
Net actuarial (gain) loss		(11)	4	(11)
Amortization of prior service benefit		0	0	0
Amortization of actuarial (loss) gain		(1)	(1)	(6)
Total recognized in accumulated other comprehensive loss		(12)	3	(17)
Total recognized in net periodic benefit cost (income) and accumulated other comprehensive loss		7	19	$ 5
Amounts that will be amortized from accumulated other comprehensive income into net periodic benefit cost in 2017:
Prior service cost (benefit)		0
Net actuarial loss (gain)		3
Benefit obligation and fair value of plan assets by pension plans
Aggregate benefit obligation		(759)	(712)
Accumulated benefit obligation		(629)	(599)
Fair value of plan assets		590	508
Projected benefit obligation		(739)	(699)
Fair value of plan assets		663	$ 568
Consolidated pension funding contributions for 2018		15
Expected future pension and retiree medical benefit payments:
2,018		43
2,019		45
2,020		46
2,021		47
2,022		48
2023-2027		$ 251
Assumptions used in determining the benefit obligations and expense:
Weighted average discount rate - obligation (as a percent)		3.60%	4.00%	4.30%
Weighted average discount rate - expense (as a percent)		4.00%	4.30%	4.00%
Weighted average rate of increase in future compensation (as a percent)		4.30%	4.30%	4.30%
Weighted average expected long-term rate of return on assets-expense (as a percent)		4.20%	4.90%	4.80%
Pension Plans | North America | Subsequent Event
Assumptions used in determining the benefit obligations and expense:
Weighted average expected long-term rate of return on assets-expense (as a percent)	4.50%
Pension Plans | United Kingdom
Net periodic benefit cost and other amounts recognized in accumulated other comprehensive loss:
Service cost		$ 0	$ 0
Interest cost		16	19
Amounts that will be amortized from accumulated other comprehensive income into net periodic benefit cost in 2017:
Prior service cost (benefit)		0
Net actuarial loss (gain)		0
Benefit obligation and fair value of plan assets by pension plans
Aggregate benefit obligation		(590)	(559)
Accumulated benefit obligation		(590)	(559)
Fair value of plan assets		414	366
Projected benefit obligation		0	0
Fair value of plan assets		0	$ 0
Consolidated pension funding contributions for 2018		26
Expected future pension and retiree medical benefit payments:
2,018		24
2,019		25
2,020		25
2,021		26
2,022		27
2023-2027		$ 145
Assumptions used in determining the benefit obligations and expense:
Weighted average discount rate - obligation (as a percent)		2.50%	2.80%	3.80%
Weighted average discount rate - expense (as a percent)		2.80%	3.80%	3.70%
Weighted average expected long-term rate of return on assets-expense (as a percent)		4.60%	5.20%	5.40%
Weighted-average retail price index—obligation (as a percent)		3.20%	3.30%	3.10%
Weighted-average retail price index—expense (as a percent)		3.30%	3.10%	3.10%
Retiree Medical
Assumptions used in determining the benefit obligations and expense:
Defined benefit plan, pre-65 health care cost trend rate assumed for next fiscal year		8.00%	7.00%
Defined benefit plan, pre-65 ultimate health care cost trend rate for 2024		4.50%	4.50%
Defined benefit plan, post-65 health care cost trend rate assumed for next fiscal year		9.50%	8.50%
Defined benefit plan, post-65 ultimate health care cost trend rate for 2022		4.50%	4.50%
Effect of one-percentage point change on the assumed health care cost trend rate:
Effect of one-percentage-point increase on total of service and interest cost components for 2017		$ 0
Effect of one-percentage-point decrease on total of service and interest cost components for 2017		0
Effect of one-percentage-point increase on benefit obligation at the end of the period		6
Effect of one-percentage-point decrease on benefit obligation at the end of the period		(5)
Retiree Medical | North America
Pre-tax amounts recognized in accumulated other comprehensive loss
Prior service cost (benefit)		(2)	$ (4)
Net actuarial loss		12	7
Pre-tax amounts recognized in accumulated other comprehensive loss, total		10	3
Net periodic benefit cost and other amounts recognized in accumulated other comprehensive loss:
Service cost		0	0	$ 0
Interest cost		2	2	2
Expected return on plan assets		0	0	0
Amortization of prior service cost (benefit)		(1)	(1)	(1)
Amortization of actuarial loss (gain)		(1)	(1)	1
Net periodic benefit cost (income)		0	0	2
Net actuarial (gain) loss		5	(2)	(4)
Amortization of prior service benefit		1	1	1
Amortization of actuarial (loss) gain		1	0	(1)
Total recognized in accumulated other comprehensive loss		7	(1)	(4)
Total recognized in net periodic benefit cost (income) and accumulated other comprehensive loss		7	$ (1)	$ (2)
Amounts that will be amortized from accumulated other comprehensive income into net periodic benefit cost in 2017:
Prior service cost (benefit)		(1)
Net actuarial loss (gain)		0
Expected future pension and retiree medical benefit payments:
2,018		4
2,019		4
2,020		4
2,021		4
2,022		4
2023-2027		$ 15
Assumptions used in determining the benefit obligations and expense:
Weighted average discount rate - obligation (as a percent)		3.40%	3.80%	3.90%
Weighted average discount rate - expense (as a percent)		3.80%	3.90%	3.60%

Pension and Other Postretirem75

Pension and Other Postretirement Benefits (Details 3) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
North America
Pension and Other Postretirement Benefits
Total assets		$ 636
Pension Plans | Pooled Equity Funds [Member]
Pension and Other Postretirement Benefits
Total assets		41
Pension Plans | Pooled mutual funds(5)
Pension and Other Postretirement Benefits
Total assets		86
Pension Plans | North America
Pension and Other Postretirement Benefits
Defined Benefit Plan, Plan with Benefit Obligation in Excess of Plan Assets, Benefit Obligation	$ 759	712
Total assets at fair value by fair value levels	737	637
Receivables—net	1	(1)
Total assets	738	636	$ 627
Pension Plans | North America | Cash and cash equivalents
Pension and Other Postretirement Benefits
Total assets	26	39
Pension Plans | North America | Equity mutual funds: Index equity
Pension and Other Postretirement Benefits
Total assets	136	112
Pension Plans | North America | Pooled Equity Funds [Member]
Pension and Other Postretirement Benefits
Total assets	42
Pension Plans | North America | Fixed income: U.S.Treasury bonds and notes
Pension and Other Postretirement Benefits
Total assets	15	14
Pension Plans | North America | Pooled mutual funds(5)
Pension and Other Postretirement Benefits
Total assets	106
Pension Plans | North America | Fixed income: Corporate bonds and notes
Pension and Other Postretirement Benefits
Total assets	400	329
Pension Plans | North America | Fixed income: Government and agency securities
Pension and Other Postretirement Benefits
Total assets	9	15
Pension Plans | North America | Fixed income: Other
Pension and Other Postretirement Benefits
Total assets	3	1
Pension Plans | North America | Equity pooled mutual funds
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels		0
Pension Plans | North America | Quoted Prices in Active Markets (Level 1)
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	151	132
Pension Plans | North America | Quoted Prices in Active Markets (Level 1) | Cash and cash equivalents
Pension and Other Postretirement Benefits
Total assets	0	6
Pension Plans | North America | Quoted Prices in Active Markets (Level 1) | Equity mutual funds: Index equity
Pension and Other Postretirement Benefits
Total assets	136	112
Pension Plans | North America | Quoted Prices in Active Markets (Level 1) | Fixed income: U.S.Treasury bonds and notes
Pension and Other Postretirement Benefits
Total assets	15	14
Pension Plans | North America | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	586	505
Total assets		33
Pension Plans | North America | Significant Other Observable Inputs (Level 2) | Cash and cash equivalents
Pension and Other Postretirement Benefits
Total assets	26
Pension Plans | North America | Significant Other Observable Inputs (Level 2) | Pooled Equity Funds [Member]
Pension and Other Postretirement Benefits
Total assets	42	41
Pension Plans | North America | Significant Other Observable Inputs (Level 2) | Pooled mutual funds(5)
Pension and Other Postretirement Benefits
Total assets	106	86
Pension Plans | North America | Significant Other Observable Inputs (Level 2) | Fixed income: Corporate bonds and notes
Pension and Other Postretirement Benefits
Total assets	400	329
Pension Plans | North America | Significant Other Observable Inputs (Level 2) | Fixed income: Government and agency securities
Pension and Other Postretirement Benefits
Total assets	9	15
Pension Plans | North America | Significant Other Observable Inputs (Level 2) | Fixed income: Other
Pension and Other Postretirement Benefits
Total assets	3	1
Pension Plans | United Kingdom
Pension and Other Postretirement Benefits
Defined Benefit Plan, Plan with Benefit Obligation in Excess of Plan Assets, Benefit Obligation	590	559
Total assets at fair value by fair value levels	371	330
Total assets at fair value	414	366
Receivables—net	0	0
Total assets	414	366	$ 414
Pension Plans | United Kingdom | Cash and cash equivalents
Pension and Other Postretirement Benefits
Total assets	5	3
Pension Plans | United Kingdom | Pooled Target Return Funds
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	213	185
Pension Plans | United Kingdom | Fixed income: Pooled UK government index-linked securities
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	31	28
Pension Plans | United Kingdom | Fixed income: Pooled fixed income funds
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	122	114
Pension Plans | United Kingdom | Pooled property funds
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	43	36
Pension Plans | United Kingdom | NAV
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	43	36
Pension Plans | United Kingdom | Quoted Prices in Active Markets (Level 1)
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	5	3
Pension Plans | United Kingdom | Quoted Prices in Active Markets (Level 1) | Cash and cash equivalents
Pension and Other Postretirement Benefits
Total assets	5	3
Pension Plans | United Kingdom | Significant Other Observable Inputs (Level 2)
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	366	327
Pension Plans | United Kingdom | Significant Other Observable Inputs (Level 2) | Pooled Target Return Funds
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	213	185
Pension Plans | United Kingdom | Significant Other Observable Inputs (Level 2) | Fixed income: Pooled UK government index-linked securities
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	31	28
Pension Plans | United Kingdom | Significant Other Observable Inputs (Level 2) | Fixed income: Pooled fixed income funds
Pension and Other Postretirement Benefits
Total assets at fair value by fair value levels	$ 122	$ 114
United Kingdom Terra | United Kingdom
Pension and Other Postretirement Benefits
Defined Benefit Plan, Target Plan Asset Allocations, Actively Managed Return Funds	55.00%

Pension and Other Postretirem76

Pension and Other Postretirement Benefits (Details 4) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Employer contribution	$ 18	$ 16	$ 14
Nonqualified supplemental pension plan
Pension and Other Postretirement Benefits
Accrued expenses	2	3
Other noncurrent liability	16	17
Expenses recognized	2	$ 3	$ 2
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	$ 1

Financing Agreements (Details)

Financing Agreements (Details) - USD ($)

Nov. 21, 2016

Sep. 24, 2015

Sep. 18, 2015

Dec. 31, 2017

Dec. 31, 2016

Dec. 31, 2015

Dec. 26, 2017

Dec. 25, 2017

Dec. 01, 2017

Oct. 30, 2017

Sep. 30, 2017

Oct. 31, 2016

Jul. 29, 2016

Financing agreements

Long-term Debt, Gross

$ 4,750,000,000

$ 5,850,000,000

$ 800,000,000

Unsecured Debt [Abstract]

Long-term debt

4,692,000,000

5,778,000,000

Long-term debt

4,692,000,000

5,778,000,000

Long-term debt, fair value

4,800,000,000

5,506,000,000

Loss on debt extinguishment

53,000,000

167,000,000

$ 0

Redemption Premium

48,000,000

CF Industries

Unsecured Debt [Abstract]

Debt Instrument, Unamortized Discount

12,000,000

12,000,000

Unamortized Debt Issuance Expense

46,000,000

60,000,000

CF Industries | Senior Credit Agreement [Member]

Debt Instruments

Available credit

695,000,000

Line of credit facility, amount outstanding

0

0

Letters of credit outstanding, amount

55,000,000

Unsecured Debt [Abstract]

Maximum amount outstanding during period

$ 150,000,000

Interest rate during period (percent)

1.85%

Senior Notes | 6.875% senior notes [Member]

Unsecured Debt [Abstract]

Debt Instrument, Repurchase Amount

$ 800,000,000

debt instrument, aggregate redemption amount

$ 817,000,000

Senior Notes | 7.125% senior notes [Member]

Unsecured Debt [Abstract]

Debt Instrument, Repurchase Amount

$ 300,000,000

debt instrument, aggregate redemption amount

$ 331,000,000

Senior Notes | CF Industries | Public Senior Notes [Member]

Unsecured Debt [Abstract]

Repurchase price of notes as a percentage of principal amount

101.00%

Debt Instrument, Debt Default, Description of Violation or Event of Default, Threshold Amount

150,000,000

Senior Notes | CF Industries | 6.875% and 7.125% senior notes [Member]

Unsecured Debt [Abstract]

Loss on debt extinguishment

(53,000,000)

Senior Notes | CF Industries | 6.875% due 2018

Financing agreements

Long-term Debt, Gross

$ 800,000,000

$ 0

Unsecured Debt [Abstract]

Long-term debt

$ 0

795,000,000

Debt Instrument, Interest Rate, Effective Percentage

7.344%

Senior Notes | CF Industries | 7.125% due 2020

Financing agreements

Long-term Debt, Gross

$ 500,000,000

800,000,000

Unsecured Debt [Abstract]

Long-term debt

$ 496,000,000

791,000,000

Debt Instrument, Interest Rate, Effective Percentage

7.529%

Senior Notes | CF Industries | 3.450% due 2023

Financing agreements

Long-term Debt, Gross

$ 750,000,000

750,000,000

Unsecured Debt [Abstract]

Long-term debt

$ 746,000,000

745,000,000

Debt Instrument, Interest Rate, Effective Percentage

3.562%

Senior Notes | CF Industries | 5.150% due 2034

Financing agreements

Long-term Debt, Gross

$ 750,000,000

750,000,000

Unsecured Debt [Abstract]

Long-term debt

$ 739,000,000

739,000,000

Debt Instrument, Interest Rate, Effective Percentage

5.279%

Senior Notes | CF Industries | 4.950% due 2043

Financing agreements

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

5.031%

Senior Notes | CF Industries | 5.375% due 2044

Financing agreements

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%

Senior Notes | CF Industries | 3.400% due December 2021

Financing agreements

Debt Instrument, Interest Rate, Effective Percentage

3.40%

Long-term Debt, Gross

$ 500,000,000

500,000,000

Unsecured Debt [Abstract]

Long-term debt

$ 493,000,000

491,000,000

Debt Instrument, Interest Rate, Effective Percentage

3.782%

Senior Notes | CF Industries | 4.500% due December 2026

Financing agreements

Debt Instrument, Interest Rate, Effective Percentage

4.50%

Long-term Debt, Gross

$ 750,000,000

750,000,000

Unsecured Debt [Abstract]

Long-term debt

736,000,000

735,000,000

Proceeds from long-term borrowings

$ 1,230,000,000

Debt Instrument, Interest Rate, Effective Percentage

4.759%

Senior Notes | CF Industries | Private Placement Senior Notes [Member]

Unsecured Debt [Abstract]

Loss on debt extinguishment

$ (53,000,000)

Write off of Deferred Debt Issuance Cost

3,000,000

Payment for Debt Extinguishment or Debt Prepayment Cost

$ 1,180,000,000

Early Repayment of Senior Debt

170,000,000

Repayments of Senior Debt

$ 1,000,000,000

Revolving Credit Facility [Member] | Line of Credit [Member] | CF Industries | Amendment No. 3 to the Third Amended and Restated Revolving Credit Agreement [Member]

Debt Instruments

Maximum borrowing capacity

$ 750,000,000

Revolving Credit Facility [Member] | Line of Credit [Member] | CF Industries | July 2016 Credit Agreement Amendment [Member]

Debt Instruments

Maximum borrowing capacity

$ 1,500,000,000

Revolving Credit Facility [Member] | Line of Credit [Member] | CF Industries | Senior Credit Agreement [Member]

Debt Instruments

Maximum borrowing capacity

$ 2,000,000,000

Letter of Credit [Member] | Line of Credit [Member]

Debt Instruments

Maximum borrowing capacity

75,000,000

Unsecured Debt [Abstract]

Line of Credit Facility, Fair Value of Amount Outstanding

$ 72,000,000

Letter of Credit [Member] | Line of Credit [Member] | CF Industries | July 2016 Credit Agreement Amendment [Member]

Debt Instruments

Maximum borrowing capacity

$ 125,000,000

Line of Credit [Member] | Bridge Loan [Member] | Bridge Credit Agreement

Debt Instruments

Maturity period

364 days

Interest Expense (Details)

Interest Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Oct. 31, 2016	Jul. 29, 2016
Financing agreements
Interest on borrowings(1)	$ 300	$ 303	$ 267
Fees on financing agreements(1)(2)(3)	16	59	17
Interest on tax liabilities	1	4	3
Interest capitalized	(2)	(166)	(154)
Interest expense	$ 315	200	133
Bridge Credit Agreement, Tranche A [Member] | Line of Credit [Member] | Bridge Loan [Member]
Financing agreements
Fees on financing agreements(1)(2)(3)		28	$ 6
Senior Notes | Subsidiaries | Private Placement Senior Notes [Member] | Revolving Credit Facility [Member]
Financing agreements
Accelerated amortization of debt issuance costs		2
Line of Credit [Member] | Subsidiaries | Senior Credit Agreement [Member] | Revolving Credit Facility [Member]
Financing agreements
Maximum borrowing capacity		2,000
Accelerated amortization of debt issuance costs		9
Line of Credit [Member] | Subsidiaries | July 2016 Credit Agreement Amendment [Member] | Revolving Credit Facility [Member]
Financing agreements
Maximum borrowing capacity					$ 1,500
Line of Credit [Member] | Subsidiaries | Amendment No. 3 to the Third Amended and Restated Revolving Credit Agreement [Member] | Revolving Credit Facility [Member]
Financing agreements
Maximum borrowing capacity				$ 750
Accelerated amortization of debt issuance costs		$ 0

Other Operating Expenses (Detai

Other Operating Expenses (Details) - USD ($) $ in Millions	May 22, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Other Operating-Net
Transaction costs	$ 150	$ 0	$ 179	$ 57
Loss on disposal of property, plant and equipment—net		3	10	21
Expansion project costs(1)		0	73	51
Loss on foreign currency derivatives(2)		0	0	22
Loss (gain) on foreign currency transactions(3)		2	93	(8)
Loss on Embedded Derivative Instrument		4	23	0
Other		9	9	6
Other operating—net		$ 18	$ 208	$ 92

Derivative Financial Instrume80

Derivative Financial Instruments (Details) MMBTU in Millions	12 Months Ended
	Dec. 31, 2017USD ($)MMBTU	Dec. 31, 2016USD ($)MMBTU
Fair values of derivatives on consolidated balance sheets
Open derivative contracts for natural gas (in MMBtus) | MMBTU	35.9	183
Percentage of natural gas consumption covered by derivatives	42.00%
Derivatives designated as cash flow hedges | Foreign currency derivatives
Fair values of derivatives on consolidated balance sheets
Net gain (loss) expected to be reclassified into earnings from AOCI	$ 1,000,000	$ 0
Unrealized gain (loss) on cash flow hedges, pretax, in AOCI	$ 6,000,000	$ 7,000,000

Derivative Financial Instrume81

Derivative Financial Instruments (Details 2) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives	$ 3	$ 7	$ (18)	$ (53)	$ 91	$ (21)	$ 211	$ (21)	$ (61)	$ 260
Realized (losses) gains									(26)	(133)	$ (114)
Net of tax									(87)	127	(268)
Derivatives not designated as cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives									(61)	260	(154)
Derivatives not designated as cash flow hedges | Natural gas derivatives | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives									(61)	260	(176)
Derivatives not designated as cash flow hedges | Foreign currency derivatives | Other operating-net
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gains (losses) on derivatives									$ 0	$ 0	$ 22

Derivative Financial Instrume82

Derivative Financial Instruments (Details 3) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Fair values of derivatives on consolidated balance sheets
Aggregate fair value of the derivative instruments with credit risk related contingent features in a net liability position	$ 12,000,000	$ 0
Cash collateral on deposit with derivative counterparties	0	0
Derivatives not designated as cash flow hedges
Fair values of derivatives on consolidated balance sheets
Asset Derivative	1,000,000	56,000,000
Liability derivative	(12,000,000)	(6,000,000)
Cash collateral on deposit with derivative counterparties	0	0
Derivatives not designated as cash flow hedges | Natural gas derivatives
Fair values of derivatives on consolidated balance sheets
Other current assets	1,000,000	52,000,000
Other assets	0	4,000,000
Other current liabilities	(12,000,000)	0
Other liabilities	$ 0	$ (6,000,000)

Derivative Financial Instrume83

Derivative Financial Instruments (Details 4) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Cash collateral on deposit with derivative counterparties	$ 0	$ 0
Derivatives not designated as cash flow hedges
Derivative [Line Items]
Derivative assets	1,000,000	56,000,000
Derivative, Collateral, Obligation to Return Securities	1,000,000	6,000,000
Derivative, Collateral, Obligation to Return Cash	0	0
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	0	50,000,000
Derivative Liability	12,000,000	6,000,000
Derivative Liability, Not Subject to Master Netting Arrangement Deduction	1,000,000	6,000,000
Cash collateral on deposit with derivative counterparties	0	0
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	11,000,000	0
Derivative Assets (Liabilities), at Fair Value, Net	(11,000,000)	50,000,000
Net Derivative (Asset) Liability, Not Subject to Master Netting Arrangement Deduction	0	0
Derivative, Collateral, Obligation to Return Cash (Right to Reclaim Cash)	0	0
Net Derivative Asset (Liability), Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	$ (11,000,000)	$ 50,000,000

Supplemental Balance Sheet Da84

Supplemental Balance Sheet Data -Accounts Receivable-Net (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable—net	$ 307	$ 236
Allowance for Doubtful Accounts Receivable	3	3
Trade
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable—net	297	227
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable—net	$ 10	$ 9

Supplemental Balance Sheet Da85

Supplemental Balance Sheet Data -Inventories (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Finished goods	$ 233	$ 279
Raw materials, spare parts and supplies	42	60
Inventory, Net	$ 275	$ 339

Supplemental Balance Sheet Da86

Supplemental Balance Sheet Data -Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts payable	$ 99	$ 81
Capacity expansion project costs	0	185
Accrued natural gas costs	109	111
Payroll and employee-related costs	65	46
Accrued interest	38	53
Other	161	162
Accounts payable and accrued liabilities, current	$ 472	$ 638

Supplemental Balance Sheet Da87

Supplemental Balance Sheet Data -Other Noncurrent Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Benefit plans and deferred compensation	$ 324	$ 393
Tax-related liabilities	93	103
Unrealized losses on derivatives	0	6
Unrealized Loss on Embedded Derivative	20	21
Environmental and related costs	7	8
Other	16	14
Other liabilities, noncurrent	460	545
Embedded Derivative Financial Instruments [Member]
Derivative [Line Items]
Derivative Instruments and Hedges, Liabilities	$ 5	$ 5

Supplemental Balance Sheet Da88

Supplemental Balance Sheet Data Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Other current liabilities	$ 17	$ 5
Natural gas derivatives
Derivative [Line Items]
Derivative Instruments and Hedges, Liabilities	12
Embedded Derivative Financial Instruments [Member]
Derivative [Line Items]
Derivative Instruments and Hedges, Liabilities	$ 5	$ 5

Noncontrolling Interests (Detai

Noncontrolling Interests (Details) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Feb. 02, 2018trading_day	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)T	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Feb. 07, 2018$ / sharesshares
Noncontrolling interests:
Payments for Strategic Venture Compliance			$ 5	$ 5	$ 0
Loss on Embedded Derivative Instrument			4	23	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			$ 131	119	45
TNCLP
Noncontrolling interests:
Percentage of aggregate ownership held by entity through general and limited partnership			75.30%
Percentage of ownership interest held by outside investors			24.70%
Earnings attributable to general partnership interest in excess of the threshold levels			$ 41	65	116
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			$ 24	40	$ 45
CF Industries Nitrogen, LLC
Noncontrolling interests:
Right to purchase maximum annual granular urea (in tons) | T			1,100,000
Maximum annual UAN eligible for purchase at market prices (in tons) | T			580,000
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders			$ 107	79
Fair Value, Measurements, Recurring [Member]
Noncontrolling interests:
Embedded Derivative, Fair Value of Embedded Derivative Liability			25	26
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2)
Noncontrolling interests:
Embedded Derivative, Fair Value of Embedded Derivative Liability			$ 25	$ 26
Subsequent Event | TNCLP
Noncontrolling interests:
Average trading days for which purchase price is greater | trading_day	20
Subsequent Event | CF Industries Nitrogen, LLC
Noncontrolling interests:
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders		$ 49
Terra Nitrogen Company LP | Terra Nitrogen GP Inc [Member] | Subsequent Event
Noncontrolling interests:
business acquisition, number of units purchased | shares						4,612,562
Business Acquisition, Share Price | $ / shares						$ 84

Noncontrolling Interests (Det90

Noncontrolling Interests (Details 2)	Apr. 02, 2018USD ($)	Dec. 31, 2017USD ($)T	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Feb. 01, 2016
Noncontrolling interests:
Noncontrolling Interest, Increase from Subsidiary Equity Issuance		$ 0	$ 2,792,000,000
Issuance of noncontrolling interest in CFN		0	2,800,000,000	$ 0
Noncontrolling interest
Beginning balance		3,144,000,000	352,000,000
Earnings attributable to noncontrolling interests		92,000,000	119,000,000	34,000,000
Declaration of distributions payable		(131,000,000)	(119,000,000)	(45,000,000)
Ending balance		3,105,000,000	3,144,000,000	352,000,000
Distributions payable to noncontrolling interests:
Beginning balance		0	0
Declaration of distributions payable		131,000,000	119,000,000
Ending balance		0	0	0
Payments for Strategic Venture Compliance		5,000,000	5,000,000	0
Loss on Embedded Derivative Instrument		4,000,000	23,000,000	0
TNCLP
Noncontrolling interests:
Noncontrolling Interest, Increase from Subsidiary Equity Issuance		0	0	0
Noncontrolling interest
Beginning balance		338,000,000	352,000,000	363,000,000
Earnings attributable to noncontrolling interests		19,000,000	26,000,000	34,000,000
Declaration of distributions payable		(24,000,000)	(40,000,000)	(45,000,000)
Ending balance		333,000,000	338,000,000	352,000,000
Distributions payable to noncontrolling interests:
Beginning balance		0	0	0
Declaration of distributions payable		24,000,000	40,000,000	45,000,000
Distributions to noncontrolling interests		(24,000,000)	(40,000,000)	(45,000,000)
Ending balance		$ 0	0	0
Percentage of ownership interest held by outside investors		24.70%
CF Industries Nitrogen, LLC
Noncontrolling interests:
Noncontrolling Interest, Increase from Subsidiary Equity Issuance		$ 0	2,792,000,000
Issuance of noncontrolling interest in CFN			2,800,000,000
Noncontrolling interest
Beginning balance		2,806,000,000	0
Earnings attributable to noncontrolling interests		73,000,000	93,000,000
Declaration of distributions payable		(107,000,000)	(79,000,000)
Ending balance		2,772,000,000	2,806,000,000	0
Distributions payable to noncontrolling interests:
Beginning balance		0	0
Declaration of distributions payable		107,000,000	79,000,000
Distributions to noncontrolling interests		(107,000,000)	(79,000,000)
Ending balance		$ 0	0	0
Right to purchase maximum annual granular urea (in tons) | T		1,100,000
Maximum annual UAN eligible for purchase at market prices (in tons) | T		580,000
Noncontrolling Interests
Noncontrolling interest
Declaration of distributions payable			(119,000,000)	$ (45,000,000)
Distributions payable to noncontrolling interests:
Distributions to noncontrolling interests		$ (131,000,000)	(119,000,000)
CHS Inc. [Member] | CF Industries Nitrogen, LLC
Distributions payable to noncontrolling interests:
Percentage of ownership interest held by outside investors					11.00%
Fair Value, Measurements, Recurring [Member]
Distributions payable to noncontrolling interests:
Embedded Derivative, Fair Value of Embedded Derivative Liability		25,000,000	26,000,000
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member]
Distributions payable to noncontrolling interests:
Embedded Derivative, Fair Value of Embedded Derivative Liability		$ 25,000,000	$ 26,000,000
Scenario, Forecast [Member] | Terra Nitrogen Company LP | Terra Nitrogen GP Inc [Member]
Noncontrolling interests:
Payments to Acquire Businesses, Gross	$ 390,000,000

Stockholders' Equity (Details)

Stockholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2016
Stock Repurchase Program [Roll Forward]
Purchase of treasury stock (in dollars)					$ 527
The 2014 Share Repurchase Program
Class of Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount						$ 100
Stock Repurchase Program [Roll Forward]
Beginning balance of accumulated number of shares repurchased (in shares)				7,000,000	7,000,000
Number of shares repurchased (in shares)	0	300,000	4,500,000	4,100,000	8,900,000
Ending balance of accumulated number of shares repurchased (in shares)	15,900,000				15,900,000
Beginning balance of treasury stock (in dollars)				$ 373	$ 373
Purchase of treasury stock (in dollars)	$ 0	$ 22	$ 268	$ 237	527
Ending balance of treasury stock (in dollars)	$ 900				$ 900

Stockholders' Equity (Details 2

Stockholders' Equity (Details 2) - USD ($)	3 Months Ended				12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Aug. 06, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of treasury stock value							$ 527,000,000
Number of treasury shares retired						2,400,000	10,700,000
Treasury Stock, Retired, Cost Method, Amount						$ 0	$ 0
Treasury stock, shares	2,400,000				710	27,602	2,400,000
Change in common shares issued and outstanding
Beginning balance				241,673,050	233,114,169	233,081,556	241,673,050
Exercise of stock options					90,938	17,600	274,705
Issuance of restricted stock					93,833	44,941	40,673
Forfeitures of restricted stock					0	(10,000)	0
Purchase of treasury shares					(11,851)	(19,928)	(8,906,872)
Ending balance	233,081,556				233,287,089	233,114,169	233,081,556
The 2014 Share Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum amount up to which company common stock is authorized to be repurchased								$ 1,000,000,000
Purchase of treasury shares	0	(300,000)	(4,500,000)	(4,100,000)			(8,900,000)
Purchase of treasury stock value	$ 0	$ 22,000,000	$ 268,000,000	$ 237,000,000			$ 527,000,000
Paid-In Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of treasury stock value							0
Treasury Stock, Retired, Cost Method, Amount						$ 14,000,000	62,000,000
Retained Earnings
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of treasury stock value							0
Treasury Stock, Retired, Cost Method, Amount						136,000,000	535,000,000
Treasury Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of treasury stock value							527,000,000
Treasury Stock, Retired, Cost Method, Amount						$ (150,000,000)	$ (597,000,000)

Stockholders' Equity (Details 3

Stockholders' Equity (Details 3) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
Preferred Stock
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01

Stockholders' Equity (Details 4

Stockholders' Equity (Details 4) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	$ (398)	$ (250)	$ (160)
Unrealized gain		(1)
Reclassification to earnings	0	2	(7)
Gain (loss) arising during period	19	(97)	24
Effect of exchange rate changes and deferred taxes	116	(52)	(168)
Balance at the end of the period	(263)	(398)	(250)
Foreign Currency Translation Adjustment
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	(272)	(198)	(41)
Unrealized gain		0
Reclassification to earnings	0	0	0
Gain (loss) arising during period	0	0	0
Effect of exchange rate changes and deferred taxes	127	(74)	(166)
Balance at the end of the period	(145)	(272)	(198)
Unrealized Gain (Loss) on Securities
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	1	1	1
Unrealized gain		(1)
Reclassification to earnings	0	1	1
Gain (loss) arising during period	0	0	0
Effect of exchange rate changes and deferred taxes	0	0	(1)
Balance at the end of the period	1	1	1
Unrealized Gain (Loss) on Derivatives
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	5	5	5
Unrealized gain		0
Reclassification to earnings	(1)	0	0
Gain (loss) arising during period	0	0	0
Effect of exchange rate changes and deferred taxes	0	0	0
Balance at the end of the period	4	5	5
Defined Benefit Plans
Changes to accumulated other comprehensive income (loss)
Balance at the beginning of the period	(132)	(58)	(125)
Unrealized gain		0
Reclassification to earnings	1	1	(6)
Gain (loss) arising during period	19	(97)	24
Effect of exchange rate changes and deferred taxes	(11)	22	(1)
Balance at the end of the period	$ (123)	$ (132)	(58)
CF Fertilisers UK
Changes to accumulated other comprehensive income (loss)
Reclassification to earnings			(47)
CF Fertilisers UK | Foreign Currency Translation Adjustment
Changes to accumulated other comprehensive income (loss)
Reclassification to earnings			(9)
CF Fertilisers UK | Unrealized Gain (Loss) on Securities
Changes to accumulated other comprehensive income (loss)
Reclassification to earnings			0
CF Fertilisers UK | Unrealized Gain (Loss) on Derivatives
Changes to accumulated other comprehensive income (loss)
Reclassification to earnings			0
CF Fertilisers UK | Defined Benefit Plans
Changes to accumulated other comprehensive income (loss)
Reclassification to earnings			$ (38)

Stockholders' Equity (Details 5

Stockholders' Equity (Details 5) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2015
Reclassification out of AOCI
Equity in earnings of non-operating affiliates—net of taxes	$ 0	$ 0	$ 72
Available-for-sale securities	12	5	2
Reclassification to earnings	0	2	(7)
Tax effect	575	68	(396)
Net earnings (loss)	450	(158)	734
CF Fertilisers UK
Reclassification out of AOCI
Reclassification to earnings			(47)
Business acquisition, initial percentage of ownership				50.00%
Unrealized Gain (Loss) on Securities
Reclassification out of AOCI
Reclassification to earnings	0	1	1
Unrealized Gain (Loss) on Securities | CF Fertilisers UK
Reclassification out of AOCI
Reclassification to earnings			0
Unrealized Gain (Loss) on Derivatives
Reclassification out of AOCI
Reclassification to earnings	(1)	0	0
Unrealized Gain (Loss) on Derivatives | CF Fertilisers UK
Reclassification out of AOCI
Reclassification to earnings			0
Defined Benefit Plans
Reclassification out of AOCI
Reclassification to earnings	1	1	(6)
Defined Benefit Plans | CF Fertilisers UK
Reclassification out of AOCI
Reclassification to earnings			(38)
Foreign Currency Translation Adjustment
Reclassification out of AOCI
Reclassification to earnings	0	0	0
Foreign Currency Translation Adjustment | CF Fertilisers UK
Reclassification out of AOCI
Reclassification to earnings			(9)
Amount reclassified from AOCI
Reclassification out of AOCI
Net earnings (loss)	0	2	51
Amount reclassified from AOCI | Unrealized Gain (Loss) on Securities
Reclassification out of AOCI
Available-for-sale securities	0	1	1
Total before tax	0	1	1
Tax effect	0	0	(1)
Net earnings (loss)	0	1	0
Amount reclassified from AOCI | Unrealized Gain (Loss) on Derivatives
Reclassification out of AOCI
Reclassification of de-designated hedges	(1)	0	0
Total before tax	(1)	0	0
Tax effect	0	0	0
Net earnings (loss)	(1)	0	0
Amount reclassified from AOCI | Defined Benefit Plans
Reclassification out of AOCI
Amortization of prior service cost	(1)	(1)	(1)
Reclassification to earnings	0	0	38
Amortization of net loss	2	2	7
Total before tax	1	1	44
Tax effect	0	0	(2)
Net earnings (loss)	1	1	42
Amount reclassified from AOCI | Foreign Currency Translation Adjustment
Reclassification out of AOCI
Equity in earnings of non-operating affiliates—net of taxes	0	0	9
Total before tax	0	0	9
Tax effect	0	0	0
Net earnings (loss)	$ 0	$ 0	$ 9

Stock-Based Compensation (Detai

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Outstanding, Aggregate Intrinsic Value	$ 50
Maximum number of shares reserved for grant awards under the plan	13,900,000
Number of shares counted against reserve for determining number of shares of stock available for grant under the Plan for each option	1
Number of shares counted against reserve for each share of stock granted, other than option or stock appreciation right	1.61
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	9,500,000
Maximum number of underlying shares that may be granted to a participant in any one calendar year	5,000,000
Period over which maximum award grant per participant applies	1 year
Stock options, shares
Exercised (in shares)	(90,938)	(17,600)	(274,705)
Selected amounts pertaining to stock option exercises:
Issuances of common stock under employee stock plans	$ 1	$ 0	$ 8
Stock-based compensation costs
Stock-based compensation expense	17	19	17
Income tax benefit	(6)	(7)	(6)
Stock-based compensation expense, net of income taxes	$ 11	$ 12	$ 11
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual life	10 years
Weighted-average assumptions:
Weighted-average expected volatility (as a percent)	40.00%	39.00%	31.00%
Expected term of stock options	4 years 3 months 24 days	4 years 3 months 24 days	4 years 3 months 24 days
Risk-free interest rate (as a percent)	1.90%	1.20%	1.50%
Weighted-average expected dividend yield (as a percent)	3.90%	3.30%	1.90%
Weighted-average grant date fair value per share of options granted (in dollars per share)	$ 7.66	$ 8.97	$ 13.99
Stock options, shares
Outstanding at the beginning of the period (in shares)	4,905,272
Granted (in shares)	1,790,100
Exercised (in shares)	(90,938)
Forfeited (in shares)	(104,424)
Outstanding at the end of the period (in shares)	6,432,734	4,905,272
Exercisable balance at the end of the period (in shares)	3,568,992
Stock option activity, weighted-average exercise price
Outstanding at the beginning of the period, Weighted-Average Exercise Price (in dollars per share)	$ 40.18
Granted, Weighted-Average Exercise Price (in dollars per share)	31
Exercised, Weighted-Average Exercise Price (in dollars per share)	16.48
Forfeited, Weighted-Average Exercise Price (in dollars per share)	34.96
Outstanding at the end of the period, Weighted-Average Exercise Price (in dollars per share)	37.97	$ 40.18
Exercisable balance at the end of the period, Weighted-Average Exercise Price (in dollars per share)	$ 40.16
Selected amounts pertaining to stock option exercises:
Issuances of common stock under employee stock plans	$ 1	$ 0	$ 8
Actual tax benefit realized from stock option exercises	1	0	2
Pre-tax intrinsic value of stock options exercised	$ 2	$ 0	$ 8
Restricted stock, shares
Expired (in shares)	67,276
Restricted stock activity, weighted-average exercise price
Expired, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 48.15
Stock-based compensation costs
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 13.5
Weighted-average period over which expense will be recognized	1 year 9 months 12 days
Restricted Stock
Restricted stock, shares
Balance at the beginning of the period (in shares)	41,645
Granted (in shares)	51,258
Vested (in shares)	(41,645)
Forfeited (in shares)	0
Balance at the end of the period (in shares)	51,258	41,645
Vesting period	3 years
Restricted stock activity, weighted-average exercise price
Outstanding at the beginning of the period, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 27.85
Granted, Weighted-Average Grant Date Fair Value (in dollars per share)	27.31	$ 27.85	$ 61.54
Vested, Weighted-Average Grant Date Fair Value (in dollars per share)	27.85
Forfeited, Weighted-Average Grant Date Fair Value (in dollars per share)	0
Outstanding at the end of the period, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 27.31	$ 27.85
Selected amounts pertaining to restricted stock that vested:
Actual tax benefit realized from restricted stock vested	$ 1	$ 1	$ 1
Fair value of restricted stock vested	2	$ 2	$ 5
Stock-based compensation costs
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 5.5
Weighted-average period over which expense will be recognized	1 year 9 months 12 days
Restricted Stock | Non-management member of Board of Directors
Restricted stock, shares
Vesting period	1 year
Restricted Stock Units (RSUs)
Restricted stock, shares
Balance at the beginning of the period (in shares)	158,723
Granted (in shares)	159,220
Vested (in shares)	(42,575)
Forfeited (in shares)	(5,123)
Balance at the end of the period (in shares)	270,245	158,723
Restricted stock activity, weighted-average exercise price
Outstanding at the beginning of the period, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 44.38
Granted, Weighted-Average Grant Date Fair Value (in dollars per share)	31.20	$ 36	$ 61.60
Vested, Weighted-Average Grant Date Fair Value (in dollars per share)	49.55
Forfeited, Weighted-Average Grant Date Fair Value (in dollars per share)	39.98
Outstanding at the end of the period, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 35.88	$ 44.38
Performance Shares
Restricted stock, shares
Balance at the beginning of the period (in shares)	106,715
Granted (in shares)	61,550
Vested (in shares)	(25,625)
Forfeited (in shares)	(2,059)
Balance at the end of the period (in shares)	140,581	106,715
Restricted stock activity, weighted-average exercise price
Outstanding at the beginning of the period, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 59.48
Granted, Weighted-Average Grant Date Fair Value (in dollars per share)	45.37	$ 40.62	$ 91.13
Vested, Weighted-Average Grant Date Fair Value (in dollars per share)	77.65
Forfeited, Weighted-Average Grant Date Fair Value (in dollars per share)	72.98
Outstanding at the end of the period, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 49.79	$ 59.48
Stock-based compensation costs
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 3
Weighted-average period over which expense will be recognized	1 year 9 months 12 days
Share-based Compensation Award, First Anniversary | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion vested on each of the first three anniversaries of the date of grant	33.33%
Share-based Compensation Award, Second Anniversary | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion vested on each of the first three anniversaries of the date of grant	33.33%
Share-based Compensation Award, Third Anniversary | Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Portion vested on each of the first three anniversaries of the date of grant	33.33%

Stock-Based Compensation (Det97

Stock-Based Compensation (Details 2) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Options outstanding and exercisable
Options Outstanding, Shares	6,432,734
Options Outstanding, Weighted-Average Remaining Contractual Term	6 years 9 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 37.97
Options Outstanding, Aggregate Intrinsic Value	$ 50
Options Exercisable, Shares	3,568,992
Options Exercisable, Weighted-Average Remaining Contractual Term	5 years 5 months 6 days
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 40.16
Options Exercisable, Aggregate Intrinsic Value	$ 24
Closing stock price (in dollars per share)	$ 42.54
Range of Exercise Price from $9.73-$20.00
Options outstanding and exercisable
Exercise price range, lower range limit	9.73
Exercise price range, upper range limit	$ 20
Options Outstanding, Shares	502,120
Options Outstanding, Weighted-Average Remaining Contractual Term	2 years 2 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 15.39
Options Outstanding, Aggregate Intrinsic Value	$ 14
Options Exercisable, Shares	502,120
Options Exercisable, Weighted-Average Remaining Contractual Term	2 years 2 months 24 days
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 15.39
Options Exercisable, Aggregate Intrinsic Value	$ 14
Range of Exercise Price from $20.01-$62.25
Options outstanding and exercisable
Exercise price range, lower range limit	$ 20.01
Exercise price range, upper range limit	$ 62.25
Options Outstanding, Shares	5,930,614
Options Outstanding, Weighted-Average Remaining Contractual Term	7 years 2 months
Options Outstanding, Weighted-Average Exercise Price	$ 39.88
Options Outstanding, Aggregate Intrinsic Value	$ 36
Options Exercisable, Shares	3,066,872
Options Exercisable, Weighted-Average Remaining Contractual Term	5 years 7 months 6 days
Options Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 44.22
Options Exercisable, Aggregate Intrinsic Value	$ 10
New Accounting Pronouncement, Early Adoption, Effect | Accounting Standards Update 2016-09, Excess Tax Benefit Component [Member]
Options outstanding and exercisable
Excess Tax Benefit from Share-based Compensation, Operating Activities	$ 1	$ 0.3	$ 2
Restricted Stock Units (RSUs)
Options outstanding and exercisable
Granted, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 31.20	$ 36	$ 61.60
Performance Shares
Options outstanding and exercisable
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$ 3
Granted, Weighted-Average Grant Date Fair Value (in dollars per share)	$ 45.37	$ 40.62	$ 91.13

Contingencies (Details)

Contingencies (Details)	Apr. 17, 2015Insurance_companyPeoplePlaintiffEntity	Apr. 30, 2013People	Dec. 31, 2017Litigation_case
Pending Litigation
Loss Contingencies [Line Items]
Number of people killed		15
Number of people injured		200
Number of plaintiffs | Plaintiff	400
Number of entities that filed claims | Entity	9
Number of people that filed claims	325
Number of insurance companies that filed claims | Insurance_company	80
Settled Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Claims Settled, Number | Litigation_case			160

Segment Disclosures (Narrative)

Segment Disclosures (Narrative) (Details) - CF Fertilisers UK	Dec. 31, 2015	Jul. 31, 2015
Segment reporting information
Business acquisition, percentage of voting interests acquired		50.00%
Ownership interest (as a percent)	50.00%

Segment Disclosures (Details)

Segment Disclosures (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2015
Segment data
Net sales	$ 1,099	$ 870	$ 1,124	$ 1,037	$ 867	$ 680	$ 1,134	$ 1,004	$ 4,130	$ 3,685	$ 4,308
Cost of sales									3,700	2,845	2,761
Gross margin	$ 143	$ 9	$ 172	$ 106	$ 94	$ 2	$ 527	$ 217	430	840	1,547
Total other operating costs and expenses									210	561	319
Equity in earnings (losses) of operating affiliates									9	(145)	(35)
Operating earnings									229	134	1,193
Depreciation and amortization									883	678	480
Operating segments | Ammonia
Segment data
Net sales									1,209	981	1,523
Cost of sales									1,071	715	884
Gross margin									138	266	639
Depreciation and amortization									183	96	95
Operating segments | Granular Urea
Segment data
Net sales									971	831	788
Cost of sales									856	584	469
Gross margin									115	247	319
Depreciation and amortization									246	112	51
Operating segments | UAN
Segment data
Net sales									1,134	1,196	1,480
Cost of sales									1,055	920	955
Gross margin									79	276	525
Depreciation and amortization									265	247	192
Operating segments | AN
Segment data
Net sales									497	411	294
Cost of sales									446	409	291
Gross margin									51	2	3
Depreciation and amortization									85	93	66
Operating segments | Other
Segment data
Net sales									319	266	223
Cost of sales									272	217	162
Gross margin									47	49	61
Depreciation and amortization									57	46	35
Corporate
Segment data
Depreciation and amortization									$ 47	$ 84	$ 41
CF Fertilisers UK
Segment reporting information
Business acquisition, percentage of voting interests acquired												50.00%

Segment Disclosures (Details 2)

Segment Disclosures (Details 2) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Enterprise-wide data by geographic region
Sales by geographic region (based on destination of shipments):	$ 1,099	$ 870	$ 1,124	$ 1,037	$ 867	$ 680	$ 1,134	$ 1,004	$ 4,130	$ 3,685	$ 4,308
Property, plant and equipment—net by geographic region:	9,175				9,652				9,175	9,652	8,539
United States
Enterprise-wide data by geographic region
Sales by geographic region (based on destination of shipments):									2,851	2,728	3,485
Property, plant and equipment—net by geographic region:	7,921				8,444				7,921	8,444	7,202
Total Foreign
Enterprise-wide data by geographic region
Sales by geographic region (based on destination of shipments):									1,279	957	823
Property, plant and equipment—net by geographic region:	1,254				1,208				1,254	1,208	1,337
Canada
Enterprise-wide data by geographic region
Sales by geographic region (based on destination of shipments):									352	349	490
Property, plant and equipment—net by geographic region:	551				523				551	523	497
United Kingdom
Enterprise-wide data by geographic region
Sales by geographic region (based on destination of shipments):									427	394	153
Property, plant and equipment—net by geographic region:	$ 703				$ 685				703	685	840
Other foreign
Enterprise-wide data by geographic region
Sales by geographic region (based on destination of shipments):									$ 500	$ 214	$ 180
Customer Concentration Risk [Member] | Customer One [Member] | Sales Revenue, Net [Member]
Enterprise-wide data by geographic region
Concentration Risk, Percentage									11.00%	12.00%

Supplemental Cash Flow Infor102

Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash paid during the year
Interest—net of interest capitalized	$ 311	$ 144	$ 100
Income taxes—net of refunds	(807)	(110)	435
Supplemental disclosure of noncash investing and financing activities:
Change in capitalized expenditures in accounts payable and accrued expenses	(179)	(263)	258
Change in capitalized expenditures in other liabilities	0	(55)	6
Change in noncontrolling interests in other liabilities	0	8	0
Change in accrued share repurchases	$ 0	$ 0	$ (29)

Asset Retirement Obligations (D

Asset Retirement Obligations (Details) $ in Millions	Dec. 31, 2017USD ($)
Asset Retirement Obligation [Line Items]
Unrecorded AROs	$ 73

Leases (Details)

Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Future minimum payments under noncancelable operating leases, barge charters and storage agreements
2,017	$ 83
2,018	77
2,019	57
2,020	47
2,021	36
Thereafter	76
Total	376
Total rent expense for cancelable and noncancelable operating leases	$ 125	$ 111	$ 100
Rail car | Minimum
Agreed term of leases
Term	1 year
Rail car | Maximum
Agreed term of leases
Term	11 years
Barge charter | Minimum
Agreed term of leases
Term	1 year
Barge charter | Maximum
Agreed term of leases
Term	7 years
Terminal and warehouse storage | Minimum
Agreed term of leases
Term	1 year
Terminal and warehouse storage | Maximum
Agreed term of leases
Term	5 years

Quarterly Data-Unaudited (Detai

Quarterly Data-Unaudited (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended										12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2015
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 1,099	$ 870	$ 1,124	$ 1,037	$ 867	$ 680	$ 1,134	$ 1,004			$ 4,130	$ 3,685	$ 4,308
Gross margin	143	9	172	106	94	2	527	217			430	840	1,547
Unrealized gains (losses) on derivatives	3	7	(18)	(53)	91	(21)	211	(21)			(61)	260
Net earnings (loss) attributable to common stockholders	$ 465	$ (87)	$ 3	$ (23)	$ (320)	$ (30)	$ 47	$ 26			$ 358	$ (277)	$ 700
Net earnings (loss) per share attributable to common stockholders:
Basic (in dollars per share)	$ 1.99	$ (0.37)	$ 0.01	$ (0.10)	$ (1.38)	$ (0.13)	$ 0.20	$ 0.11			$ 1.53	$ (1.19)	$ 2.97
Diluted (in dollars per share)	1.98	$ (0.37)	$ 0.01	$ (0.10)	$ (1.38)	$ (0.13)	$ 0.20	$ 0.11			$ 1.53	$ (1.19)	$ 2.96
Assets and Liabilities Held for Sale
income tax expense (benefit) after Tax Cuts and Jobs Act of 2017											$ (491)	$ 0	$ 0
income tax expense (benefit) after Tax Cuts and Jobs Act of 2017 per basic diluted share	$ (2.09)
Unrealized Loss on Embedded Derivative Instrument net of tax						$ 14
Unrealized Loss on Embedded Derivative Instrument						$ 22
Unrealized loss on embedded derivative per basic diluted share						$ 0.06
Loss on sale of equity method investments											14	0	(43)
Gain on remeasurement of CF Fertilisers UK investment											0	0	94
Impairment of equity method investment in PLNL											$ 0	$ 134	62
Keytrade AG | Non-operating equity method investments
Assets and Liabilities Held for Sale
After-tax loss on disposal										$ (29)
Point Lisas Nitrogen Limited (PLNL) | Operating equity method investments
Assets and Liabilities Held for Sale
After-tax loss on disposal					$ 134				$ 62
Impairment of equity method investment in PLNL					$ 134								62
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net per basic diluted share					$ 0.57
CF Fertilisers UK
Assets and Liabilities Held for Sale
Gain on remeasurement of CF Fertilisers UK investment									$ 94				$ 94
Business acquisition, initial percentage of ownership														50.00%

Condensed Consolidating Fina106

Condensed Consolidating Financial Statements (Details) - USD ($) $ in Millions	May 22, 2016	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed, Consolidating Statement of Operations
Net sales		$ 1,099	$ 870	$ 1,124	$ 1,037	$ 867	$ 680	$ 1,134	$ 1,004	$ 4,130	$ 3,685	$ 4,308
Cost of sales										3,700	2,845	2,761
Gross margin		143	9	172	106	94	2	527	217	430	840	1,547
Selling, general and administrative expenses										192	174	170
Transaction costs	$ 150									0	179	57
Other operating—net										18	208	92
Total other operating costs and expenses										210	561	319
Equity in earnings (losses) of operating affiliates										9	(145)	(35)
Operating earnings										229	134	1,193
Interest expense										315	200	133
Interest income										(12)	(5)	(2)
Loss on debt extinguishment										53	167	0
Net loss (earnings) of wholly owned subsidiaries										0	0	0
Other non-operating—net										(2)	(2)	4
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates										(125)	(226)	1,058
Income tax provision (benefit)										(575)	(68)	396
Equity in earnings of non-operating affiliates—net of taxes										0	0	72
Net earnings (loss)										450	(158)	734
Less: Net earnings attributable to noncontrolling interests										92	119	34
Net earnings (loss) attributable to common stockholders		$ 465	$ (87)	$ 3	$ (23)	$ (320)	$ (30)	$ 47	$ 26	358	(277)	700
Eliminations
Condensed, Consolidating Statement of Operations
Net sales										(2,949)	(2,548)	(2,719)
Cost of sales										(2,949)	(2,548)	(2,719)
Gross margin										0	0	0
Selling, general and administrative expenses										0	0	0
Transaction costs											0	0
Other operating—net										0	0	0
Total other operating costs and expenses										0	0	0
Equity in earnings (losses) of operating affiliates										0	0	0
Operating earnings										0	0	0
Interest expense										(45)	(77)	(96)
Interest income										45	77	96
Loss on debt extinguishment										0	0
Net loss (earnings) of wholly owned subsidiaries										(1,248)	(81)	1,936
Other non-operating—net										0	0	0
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates										1,248	81	(1,936)
Income tax provision (benefit)										0	0	0
Equity in earnings of non-operating affiliates—net of taxes												0
Net earnings (loss)										1,248	81	(1,936)
Less: Net earnings attributable to noncontrolling interests										0	0	0
Net earnings (loss) attributable to common stockholders										1,248	81	(1,936)
Subsidiary Guarantors | Reportable legal entities
Condensed, Consolidating Statement of Operations
Net sales										3,257	2,932	4,101
Cost of sales										3,386	2,806	3,186
Gross margin										(129)	126	915
Selling, general and administrative expenses										113	105	120
Transaction costs											223	7
Other operating—net										3	30	29
Total other operating costs and expenses										116	358	156
Equity in earnings (losses) of operating affiliates										0	0	0
Operating earnings										(245)	(232)	759
Interest expense										37	85	14
Interest income										(11)	(8)	(25)
Loss on debt extinguishment										0	0
Net loss (earnings) of wholly owned subsidiaries										(204)	(315)	(403)
Other non-operating—net										(1)	0	5
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates										(66)	6	1,168
Income tax provision (benefit)										1,037	18	385
Equity in earnings of non-operating affiliates—net of taxes												10
Net earnings (loss)										(1,103)	(12)	793
Less: Net earnings attributable to noncontrolling interests										0	0	0
Net earnings (loss) attributable to common stockholders										(1,103)	(12)	793
Non- Guarantors | Reportable legal entities
Condensed, Consolidating Statement of Operations
Net sales										3,380	2,939	2,464
Cost of sales										2,985	2,380	1,933
Gross margin										395	559	531
Selling, general and administrative expenses										79	56	38
Transaction costs											2	4
Other operating—net										13	171	71
Total other operating costs and expenses										92	229	113
Equity in earnings (losses) of operating affiliates										12	(145)	(35)
Operating earnings										315	185	383
Interest expense										5	(155)	(70)
Interest income										(13)	(25)	(4)
Loss on debt extinguishment										0	0
Net loss (earnings) of wholly owned subsidiaries										0	0	0
Other non-operating—net										(1)	(2)	(1)
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates										324	367	458
Income tax provision (benefit)										16	13	74
Equity in earnings of non-operating affiliates—net of taxes												62
Net earnings (loss)										308	354	446
Less: Net earnings attributable to noncontrolling interests										92	119	34
Net earnings (loss) attributable to common stockholders										216	235	412
Subsidiaries | Reportable legal entities
Condensed, Consolidating Statement of Operations
Net sales										442	362	462
Cost of sales										278	207	361
Gross margin										164	155	101
Selling, general and administrative expenses										(4)	9	8
Transaction costs											0	0
Other operating—net										2	7	(8)
Total other operating costs and expenses										(2)	16	0
Equity in earnings (losses) of operating affiliates										(3)	0	0
Operating earnings										163	139	101
Interest expense										318	347	285
Interest income										(33)	(49)	(69)
Loss on debt extinguishment										53	167
Net loss (earnings) of wholly owned subsidiaries										1,091	92	(802)
Other non-operating—net										0	0	0
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates										(1,266)	(418)	687
Income tax provision (benefit)										(905)	(114)	(44)
Equity in earnings of non-operating affiliates—net of taxes												0
Net earnings (loss)										(361)	(304)	731
Less: Net earnings attributable to noncontrolling interests										0	0	0
Net earnings (loss) attributable to common stockholders										(361)	(304)	731
Parent | Reportable legal entities
Condensed, Consolidating Statement of Operations
Net sales										0	0	0
Cost of sales										0	0	0
Gross margin										0	0	0
Selling, general and administrative expenses										4	4	4
Transaction costs											(46)	46
Other operating—net										0	0	0
Total other operating costs and expenses										4	(42)	50
Equity in earnings (losses) of operating affiliates										0	0	0
Operating earnings										(4)	42	(50)
Interest expense										0	0	0
Interest income										0	0	0
Loss on debt extinguishment										0	0
Net loss (earnings) of wholly owned subsidiaries										361	304	(731)
Other non-operating—net										0	0	0
(Loss) earnings before income taxes and equity in earnings of non-operating affiliates										(365)	(262)	681
Income tax provision (benefit)										(723)	15	(19)
Equity in earnings of non-operating affiliates—net of taxes												0
Net earnings (loss)										358	(277)	700
Less: Net earnings attributable to noncontrolling interests										0	0	0
Net earnings (loss) attributable to common stockholders										$ 358	$ (277)	$ 700

Condensed Consolidating Fina107

Condensed Consolidating Financial Statements (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed, Consolidating Statement of Comprehensive Income
Net earnings (loss)	$ 450	$ (158)	$ 734
Other comprehensive loss	135	(148)	(90)
Comprehensive income (loss)	585	(306)	644
Less: Comprehensive income attributable to noncontrolling interest	92	119	34
Comprehensive income (loss) attributable to common stockholders	493	(425)	610
Eliminations
Condensed, Consolidating Statement of Comprehensive Income
Net earnings (loss)	1,248	81	(1,936)
Other comprehensive loss	(356)	350	284
Comprehensive income (loss)	892	431	(1,652)
Less: Comprehensive income attributable to noncontrolling interest	0	0	0
Comprehensive income (loss) attributable to common stockholders	892	431	(1,652)
Parent | Reportable legal entities
Condensed, Consolidating Statement of Comprehensive Income
Net earnings (loss)	358	(277)	700
Other comprehensive loss	135	(148)	(90)
Comprehensive income (loss)	493	(425)	610
Less: Comprehensive income attributable to noncontrolling interest	0	0	0
Comprehensive income (loss) attributable to common stockholders	493	(425)	610
CF Industries | Reportable legal entities
Condensed, Consolidating Statement of Comprehensive Income
Net earnings (loss)	(361)	(304)	731
Other comprehensive loss	135	(148)	(90)
Comprehensive income (loss)	(226)	(452)	641
Less: Comprehensive income attributable to noncontrolling interest	0	0	0
Comprehensive income (loss) attributable to common stockholders	(226)	(452)	641
Subsidiary Guarantors | Reportable legal entities
Condensed, Consolidating Statement of Comprehensive Income
Net earnings (loss)	(1,103)	(12)	793
Other comprehensive loss	91	(68)	(98)
Comprehensive income (loss)	(1,012)	(80)	695
Less: Comprehensive income attributable to noncontrolling interest	0	0	0
Comprehensive income (loss) attributable to common stockholders	(1,012)	(80)	695
Non- Guarantors | Reportable legal entities
Condensed, Consolidating Statement of Comprehensive Income
Net earnings (loss)	308	354	446
Other comprehensive loss	130	(134)	(96)
Comprehensive income (loss)	438	220	350
Less: Comprehensive income attributable to noncontrolling interest	92	119	34
Comprehensive income (loss) attributable to common stockholders	$ 346	$ 101	$ 316

Condensed Consolidating Fina108

Condensed Consolidating Financial Statements (Details 3) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 835	$ 1,164	$ 286	$ 1,997
Restricted cash	0	5
Accounts and notes receivable—net	307	236
Inventories	275	339
Prepaid income taxes	33	841
Other current assets	15	70
Total current assets	1,465	2,655
Property, plant and equipment—net	9,175	9,652	8,539
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	0
Investments in and advances to affiliates	108	139
Due from affiliates		0
Goodwill	2,371	2,345
Other assets	344	340
Total assets	13,463	15,131
Current liabilities:
Accounts and notes payable and accrued expenses	472	638
Income taxes payable	2	1
Customer advances	89	42
Other current liabilities	17	5
Total current liabilities	580	686
Long-term debt	4,692	5,778
Deferred income taxes	1,047	1,630
Due to affiliates		0
Other liabilities	460	545
Stockholders' equity:
Preferred stock	0	0
Common stock	2	2
Paid-in capital	1,397	1,380
Retained earnings	2,443	2,365
Treasury stock	0	(1)
Accumulated other comprehensive income (loss)	(263)	(398)	(250)	(160)
Total stockholders' equity	3,579	3,348
Noncontrolling interests	3,105	3,144	352
Total equity	6,684	6,492	4,387	4,572
Total liabilities and equity	13,463	15,131
Eliminations
Current assets:
Cash and cash equivalents	0	0	0	0
Restricted cash		0
Accounts and notes receivable—net	(5,427)	(2,956)
Inventories	0	0
Prepaid income taxes	0	0
Other current assets	0	0
Total current assets	(5,427)	(2,956)
Property, plant and equipment—net	0	0
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	(8)
Investments in and advances to affiliates	(18,956)	(19,100)
Due from affiliates		(571)
Goodwill	0	0
Other assets	(276)	(231)
Total assets	(24,667)	(22,858)
Current liabilities:
Accounts and notes payable and accrued expenses	(5,427)	(2,956)
Income taxes payable	0	0
Customer advances	0	0
Other current liabilities	0	0
Total current liabilities	(5,427)	(2,956)
Long-term debt	(276)	(231)
Deferred income taxes	(8)	0
Due to affiliates		(571)
Other liabilities	0	0
Stockholders' equity:
Preferred stock	0	0
Common stock	(4,738)	(4,383)
Paid-in capital	(13,142)	(11,278)
Retained earnings	(1,740)	(4,459)
Treasury stock	0	0
Accumulated other comprehensive income (loss)	664	1,020
Total stockholders' equity	(18,956)	(19,100)
Noncontrolling interests	0	0
Total equity	(18,956)	(19,100)
Total liabilities and equity	(24,667)	(22,858)
Parent | Reportable legal entities
Current assets:
Cash and cash equivalents	0	0	1	0
Restricted cash		0
Accounts and notes receivable—net	743	20
Inventories	0	0
Prepaid income taxes	0	0
Other current assets	0	0
Total current assets	743	20
Property, plant and equipment—net	0	0
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	0
Investments in and advances to affiliates	4,055	3,711
Due from affiliates		571
Goodwill	0	0
Other assets	0	0
Total assets	4,798	4,302
Current liabilities:
Accounts and notes payable and accrued expenses	1,219	954
Income taxes payable	0	0
Customer advances	0	0
Other current liabilities	0	0
Total current liabilities	1,219	954
Long-term debt	0	0
Deferred income taxes	0	0
Due to affiliates		0
Other liabilities	0	0
Stockholders' equity:
Preferred stock	0	0
Common stock	2	2
Paid-in capital	1,397	1,380
Retained earnings	2,443	2,365
Treasury stock	0	(1)
Accumulated other comprehensive income (loss)	(263)	(398)
Total stockholders' equity	3,579	3,348
Noncontrolling interests	0	0
Total equity	3,579	3,348
Total liabilities and equity	4,798	4,302
CF Industries | Reportable legal entities
Current assets:
Cash and cash equivalents	15	36	0	106
Restricted cash		0
Accounts and notes receivable—net	1,553	1,259
Inventories	4	0
Prepaid income taxes	0	0
Other current assets	0	0
Total current assets	1,572	1,295
Property, plant and equipment—net	0	0
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	8
Investments in and advances to affiliates	8,411	9,370
Due from affiliates		0
Goodwill	0	0
Other assets	85	85
Total assets	10,076	10,750
Current liabilities:
Accounts and notes payable and accrued expenses	1,314	418
Income taxes payable	0	0
Customer advances	0	0
Other current liabilities	0	0
Total current liabilities	1,314	418
Long-term debt	4,692	5,903
Deferred income taxes	0	90
Due to affiliates		571
Other liabilities	16	59
Stockholders' equity:
Preferred stock	0	0
Common stock	0	0
Paid-in capital	1,854	(13)
Retained earnings	2,463	4,120
Treasury stock	0	0
Accumulated other comprehensive income (loss)	(263)	(398)
Total stockholders' equity	4,054	3,709
Noncontrolling interests	0	0
Total equity	4,054	3,709
Total liabilities and equity	10,076	10,750
Non- Guarantors | Reportable legal entities
Current assets:
Cash and cash equivalents	432	250	164	651
Restricted cash		5
Accounts and notes receivable—net	768	495
Inventories	167	175
Prepaid income taxes	0	2
Other current assets	5	11
Total current assets	1,372	938
Property, plant and equipment—net	9,052	9,521
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	0
Investments in and advances to affiliates	108	139
Due from affiliates		0
Goodwill	308	281
Other assets	453	385
Total assets	11,293	11,264
Current liabilities:
Accounts and notes payable and accrued expenses	708	717
Income taxes payable	2	1
Customer advances	0	0
Other current liabilities	3	0
Total current liabilities	713	718
Long-term debt	78	67
Deferred income taxes	179	166
Due to affiliates		0
Other liabilities	201	216
Stockholders' equity:
Preferred stock	0	0
Common stock	4,738	4,383
Paid-in capital	1,783	2,246
Retained earnings	709	668
Treasury stock	0	0
Accumulated other comprehensive income (loss)	(221)	(351)
Total stockholders' equity	7,009	6,946
Noncontrolling interests	3,113	3,151
Total equity	10,122	10,097
Total liabilities and equity	11,293	11,264
Subsidiary Guarantors | Reportable legal entities
Current assets:
Cash and cash equivalents	388	878	$ 121	$ 1,240
Restricted cash		0
Accounts and notes receivable—net	2,670	1,418
Inventories	104	164
Prepaid income taxes	33	839
Other current assets	10	59
Total current assets	3,205	3,358
Property, plant and equipment—net	123	131
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	0
Investments in and advances to affiliates	6,490	6,019
Due from affiliates		0
Goodwill	2,063	2,064
Other assets	82	101
Total assets	11,963	11,673
Current liabilities:
Accounts and notes payable and accrued expenses	2,658	1,505
Income taxes payable	0	0
Customer advances	89	42
Other current liabilities	14	5
Total current liabilities	2,761	1,552
Long-term debt	198	39
Deferred income taxes	876	1,374
Due to affiliates		0
Other liabilities	243	270
Stockholders' equity:
Preferred stock	0	0
Common stock	0	0
Paid-in capital	9,505	9,045
Retained earnings	(1,432)	(329)
Treasury stock	0	0
Accumulated other comprehensive income (loss)	(180)	(271)
Total stockholders' equity	7,893	8,445
Noncontrolling interests	(8)	(7)
Total equity	7,885	8,438
Total liabilities and equity	$ 11,963	$ 11,673

Condensed Consolidating Fina109

Condensed Consolidating Financial Statements (Details 4) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Activities:
Net earnings (loss)	$ 450	$ (158)	$ 734
Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	883	678	480
Deferred income taxes	(601)	739	78
Stock-based compensation expense	17	19	17
Unrealized net loss on natural gas derivatives	61	(260)	163
Loss on Embedded Derivative Instrument	4	23	0
Gain on remeasurement of CF Fertilisers UK investment	0	0	(94)
Impairment of equity method investment in PLNL	0	134	62
Gain on sale of equity method investment	(14)	0	43
Loss on debt extinguishment	53	167	0
Loss on disposal of property, plant and equipment	3	10	21
Undistributed losses (earnings) of affiliates—net	3	9	(3)
Due to/from affiliates—net			0
Intercompany accounts receivable/accounts payable—net	0	0	0
Changes in:
Accounts receivable—net	(57)	18	(4)
Inventories	40	(7)	(71)
Accrued and prepaid income taxes	809	(676)	(148)
Accounts and notes payable and accrued expenses	(1)	(18)	42
Customer advances	48	(120)	(164)
Other—net	(67)	59	51
Net cash provided by operating activities	1,631	617	1,207
Investing Activities:
Additions to property, plant and equipment	(473)	(2,211)	(2,469)
Proceeds from sale of property, plant and equipment	20	14	12
Proceeds from sale of equity method investment	16	0	13
Purchase of CF Fertilisers UK, net of cash acquired	0	0	(552)
Distributions received from unconsolidated affiliates	14	0	0
Proceeds from sale of auction rate securities	9	0	0
Deposits to restricted cash funds			(552)
Withdrawals from restricted cash funds	5	18	63
Investments in unconsolidated affiliates		0
Other—net	1	2	(43)
Net cash used in investing activities	(408)	(2,177)	(2,976)
Financing Activities:
Long-term debt—net	0	0
Proceeds from long-term borrowings	0	1,244	1,000
Payments of long-term borrowings	(1,148)	(1,170)	0
Short-term debt—net	0	0	0
Proceeds from short-term borrowings	0	150	367
Payments of short-term borrowings	0	(150)	(367)
Financing fees	(1)	(31)	(47)
Purchases of treasury stock	0	0	(556)
Dividends paid on common stock	(280)	(280)	(282)
Issuance of noncontrolling interest in CFN	0	2,800	0
Payment to CHS related to credit provision	(5)	(5)	0
Distributions to noncontrolling interests	(131)	(119)	(45)
Proceeds from Contributions from Affiliates		0
Issuances of common stock under employee stock plans	1	0	8
Shares withheld for taxes	0	0	(1)
Dividends to/from affiliates	0	0	0
Other—net		0	0
Net cash (used in) provided by financing activities	(1,564)	2,439	77
Effect of exchange rate changes on cash and cash equivalents	12	(1)	(19)
Increase (decrease) in cash and cash equivalents	(329)	878	(1,711)
Cash and cash equivalents at beginning of period	1,164	286	1,997
Cash and cash equivalents at end of period	835	1,164	286
Eliminations
Operating Activities:
Net earnings (loss)	1,248	81	(1,936)
Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	0	0	0
Deferred income taxes	0	0	0
Stock-based compensation expense	0	0	0
Unrealized net loss on natural gas derivatives	0	0	0
Loss on Embedded Derivative Instrument	0	0
Gain on remeasurement of CF Fertilisers UK investment			0
Impairment of equity method investment in PLNL		0	0
Gain on sale of equity method investment	0		0
Loss on debt extinguishment	0	0
Loss on disposal of property, plant and equipment	0	0	0
Undistributed losses (earnings) of affiliates—net	(1,248)	(81)	1,936
Due to/from affiliates—net			0
Intercompany accounts receivable/accounts payable—net	0	0	0
Changes in:
Accounts receivable—net	0	0	0
Inventories	0	0	0
Accrued and prepaid income taxes	0	0	0
Accounts and notes payable and accrued expenses	0	0	0
Customer advances	0	0	0
Other—net	0	0	0
Net cash provided by operating activities	0	0	0
Investing Activities:
Additions to property, plant and equipment	0	0	0
Proceeds from sale of property, plant and equipment	0	0	0
Proceeds from sale of equity method investment	0		0
Distributions received from unconsolidated affiliates	0
Proceeds from sale of auction rate securities	0
Deposits to restricted cash funds			0
Withdrawals from restricted cash funds	0	0	0
Investments in unconsolidated affiliates		693
Other—net	0	0	82
Net cash used in investing activities	0	693	82
Financing Activities:
Long-term debt—net	0	0
Proceeds from long-term borrowings		0	0
Payments of long-term borrowings	0	0
Short-term debt—net	0	0	0
Proceeds from short-term borrowings		0
Payments of short-term borrowings		0
Financing fees	0	0	0
Purchases of treasury stock			0
Dividends paid on common stock	103	502	832
Issuance of noncontrolling interest in CFN		0
Payment to CHS related to credit provision	0	0
Distributions to noncontrolling interests	0	0	0
Proceeds from Contributions from Affiliates		0
Issuances of common stock under employee stock plans	0		0
Shares withheld for taxes			0
Dividends to/from affiliates	(103)	(502)	(832)
Other—net		(693)	(82)
Net cash (used in) provided by financing activities	0	(693)	(82)
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of period	0	0	0
Cash and cash equivalents at end of period	0	0	0
Parent | Reportable legal entities
Operating Activities:
Net earnings (loss)	358	(277)	700
Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	0	0	0
Deferred income taxes	0	0	0
Stock-based compensation expense	17	18	16
Unrealized net loss on natural gas derivatives	0	0	0
Loss on Embedded Derivative Instrument	0	0
Gain on remeasurement of CF Fertilisers UK investment			0
Impairment of equity method investment in PLNL		0	0
Gain on sale of equity method investment	0		0
Loss on debt extinguishment	0	0
Loss on disposal of property, plant and equipment	0	0	0
Undistributed losses (earnings) of affiliates—net	361	304	(732)
Due to/from affiliates—net			2
Intercompany accounts receivable/accounts payable—net	(736)	(4)	(1)
Changes in:
Accounts receivable—net	0	0	0
Inventories	0	0	0
Accrued and prepaid income taxes	(1)	0	2
Accounts and notes payable and accrued expenses	0	(8)	9
Customer advances	0	0	0
Other—net	0	0	0
Net cash provided by operating activities	(1)	33	(4)
Investing Activities:
Additions to property, plant and equipment	0	0	0
Proceeds from sale of property, plant and equipment	0	0	0
Proceeds from sale of equity method investment	0		0
Distributions received from unconsolidated affiliates	0
Proceeds from sale of auction rate securities	0
Deposits to restricted cash funds			0
Withdrawals from restricted cash funds	0	0	0
Investments in unconsolidated affiliates		0
Other—net	0	0	0
Net cash used in investing activities	0	0	0
Financing Activities:
Long-term debt—net	0	0
Proceeds from long-term borrowings		0	0
Payments of long-term borrowings	0	0
Short-term debt—net	280	106	554
Proceeds from short-term borrowings		0
Payments of short-term borrowings		0
Financing fees	0	0	0
Purchases of treasury stock			(556)
Dividends paid on common stock	(280)	(280)	(282)
Issuance of noncontrolling interest in CFN		0
Payment to CHS related to credit provision	0	0
Distributions to noncontrolling interests	0	0	0
Proceeds from Contributions from Affiliates		0
Issuances of common stock under employee stock plans	1		8
Shares withheld for taxes			(1)
Dividends to/from affiliates	0	140	282
Other—net		0	0
Net cash (used in) provided by financing activities	1	(34)	5
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Increase (decrease) in cash and cash equivalents	0	(1)	1
Cash and cash equivalents at beginning of period	0	1	0
Cash and cash equivalents at end of period	0	0	1
CF Industries | Reportable legal entities
Operating Activities:
Net earnings (loss)	(361)	(304)	731
Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	13	21	14
Deferred income taxes	0	0	17
Stock-based compensation expense	0	0	0
Unrealized net loss on natural gas derivatives	0	0	0
Loss on Embedded Derivative Instrument	0	0
Gain on remeasurement of CF Fertilisers UK investment			0
Impairment of equity method investment in PLNL		0	0
Gain on sale of equity method investment	0		0
Loss on debt extinguishment	53	167
Loss on disposal of property, plant and equipment	0	0	0
Undistributed losses (earnings) of affiliates—net	1,091	92	(802)
Due to/from affiliates—net			1
Intercompany accounts receivable/accounts payable—net	(1,297)	(10)	(104)
Changes in:
Accounts receivable—net	0	44	(45)
Inventories	(4)	0	0
Accrued and prepaid income taxes	(60)	0	(11)
Accounts and notes payable and accrued expenses	228	(63)	61
Customer advances	0	0	0
Other—net	(5)	(6)	31
Net cash provided by operating activities	(342)	(59)	(107)
Investing Activities:
Additions to property, plant and equipment	0	0	0
Proceeds from sale of property, plant and equipment	0	0	0
Proceeds from sale of equity method investment	0		0
Distributions received from unconsolidated affiliates	0
Proceeds from sale of auction rate securities	9
Deposits to restricted cash funds			0
Withdrawals from restricted cash funds	0	0	0
Investments in unconsolidated affiliates		(44)
Other—net	0	6	(82)
Net cash used in investing activities	9	(38)	(82)
Financing Activities:
Long-term debt—net	(125)	125
Proceeds from long-term borrowings		1,244	1,000
Payments of long-term borrowings	(1,148)	(1,170)
Short-term debt—net	1,584	(40)	(870)
Proceeds from short-term borrowings		150
Payments of short-term borrowings		(150)
Financing fees	(1)	(31)	(47)
Purchases of treasury stock			0
Dividends paid on common stock	0	(140)	(282)
Issuance of noncontrolling interest in CFN		0
Payment to CHS related to credit provision	0	0
Distributions to noncontrolling interests	0	0	0
Proceeds from Contributions from Affiliates		0
Issuances of common stock under employee stock plans	0		0
Shares withheld for taxes			0
Dividends to/from affiliates	2	145	282
Other—net		0	0
Net cash (used in) provided by financing activities	312	133	83
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Increase (decrease) in cash and cash equivalents	(21)	36	(106)
Cash and cash equivalents at beginning of period	36	0	106
Cash and cash equivalents at end of period	15	36	0
Non- Guarantors | Reportable legal entities
Operating Activities:
Net earnings (loss)	308	354	446
Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	848	602	447
Deferred income taxes	(2)	(1)	(14)
Stock-based compensation expense	0	1	1
Unrealized net loss on natural gas derivatives	10	(35)	24
Loss on Embedded Derivative Instrument	0	0
Gain on remeasurement of CF Fertilisers UK investment			(94)
Impairment of equity method investment in PLNL		134	62
Gain on sale of equity method investment	(14)		(43)
Loss on debt extinguishment	0	0
Loss on disposal of property, plant and equipment	3	8	21
Undistributed losses (earnings) of affiliates—net	3	9	(3)
Due to/from affiliates—net			132
Intercompany accounts receivable/accounts payable—net	506	(294)	9
Changes in:
Accounts receivable—net	(6)	(15)	(9)
Inventories	(16)	1	(33)
Accrued and prepaid income taxes	(347)	6	(34)
Accounts and notes payable and accrued expenses	(256)	65	(42)
Customer advances	0	0	0
Other—net	(30)	82	(34)
Net cash provided by operating activities	1,007	917	922
Investing Activities:
Additions to property, plant and equipment	(461)	(2,186)	(2,443)
Proceeds from sale of property, plant and equipment	20	10	12
Proceeds from sale of equity method investment	16		13
Distributions received from unconsolidated affiliates	(165)
Proceeds from sale of auction rate securities	0
Deposits to restricted cash funds			(552)
Withdrawals from restricted cash funds	5	18	63
Investments in unconsolidated affiliates		0
Other—net	1	(4)	1
Net cash used in investing activities	(584)	(2,162)	(2,906)
Financing Activities:
Long-term debt—net	(25)	(125)
Proceeds from long-term borrowings		0	0
Payments of long-term borrowings	0	0
Short-term debt—net	6	305	1,747
Proceeds from short-term borrowings		0
Payments of short-term borrowings		0
Financing fees	0	0	0
Purchases of treasury stock			0
Dividends paid on common stock	(103)	(222)	(268)
Issuance of noncontrolling interest in CFN		2,800
Payment to CHS related to credit provision	0	0
Distributions to noncontrolling interests	(131)	(119)	(45)
Proceeds from Contributions from Affiliates		(2,000)
Issuances of common stock under employee stock plans	0		0
Shares withheld for taxes			0
Dividends to/from affiliates	0	0	0
Other—net		693	82
Net cash (used in) provided by financing activities	(253)	1,332	1,516
Effect of exchange rate changes on cash and cash equivalents	12	(1)	(19)
Increase (decrease) in cash and cash equivalents	182	86	(487)
Cash and cash equivalents at beginning of period	250	164	651
Cash and cash equivalents at end of period	432	250	164
Subsidiary Guarantors | Reportable legal entities
Operating Activities:
Net earnings (loss)	(1,103)	(12)	793
Adjustments to reconcile net earnings (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	22	55	19
Deferred income taxes	(599)	740	75
Stock-based compensation expense	0	0	0
Unrealized net loss on natural gas derivatives	51	(225)	139
Loss on Embedded Derivative Instrument	4	23
Gain on remeasurement of CF Fertilisers UK investment			0
Impairment of equity method investment in PLNL		0	0
Gain on sale of equity method investment	0		0
Loss on debt extinguishment	0	0
Loss on disposal of property, plant and equipment	0	2	0
Undistributed losses (earnings) of affiliates—net	(204)	(315)	(402)
Due to/from affiliates—net			(135)
Intercompany accounts receivable/accounts payable—net	1,527	308	96
Changes in:
Accounts receivable—net	(51)	(11)	50
Inventories	60	(8)	(38)
Accrued and prepaid income taxes	1,217	(682)	(105)
Accounts and notes payable and accrued expenses	27	(12)	14
Customer advances	48	(120)	(164)
Other—net	(32)	(17)	54
Net cash provided by operating activities	967	(274)	396
Investing Activities:
Additions to property, plant and equipment	(12)	(25)	(26)
Proceeds from sale of property, plant and equipment	0	4	0
Proceeds from sale of equity method investment	0		0
Distributions received from unconsolidated affiliates	179
Proceeds from sale of auction rate securities	0
Deposits to restricted cash funds			0
Withdrawals from restricted cash funds	0	0	0
Investments in unconsolidated affiliates		(649)
Other—net	0	0	(44)
Net cash used in investing activities	167	(670)	(70)
Financing Activities:
Long-term debt—net	150	0
Proceeds from long-term borrowings		0	0
Payments of long-term borrowings	0	0
Short-term debt—net	(1,870)	(371)	(1,431)
Proceeds from short-term borrowings		0
Payments of short-term borrowings		0
Financing fees	0	0	0
Purchases of treasury stock			0
Dividends paid on common stock	0	(140)	(282)
Issuance of noncontrolling interest in CFN		0
Payment to CHS related to credit provision	(5)	(5)
Distributions to noncontrolling interests	0	0	0
Proceeds from Contributions from Affiliates		2,000
Issuances of common stock under employee stock plans	0		0
Shares withheld for taxes			0
Dividends to/from affiliates	101	217	268
Other—net		0	0
Net cash (used in) provided by financing activities	(1,624)	1,701	(1,445)
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Increase (decrease) in cash and cash equivalents	(490)	757	(1,119)
Cash and cash equivalents at beginning of period	878	121	1,240
Cash and cash equivalents at end of period	$ 388	$ 878	$ 121

Subsequent Event (Details)

Subsequent Event (Details)	Apr. 02, 2018USD ($)	Feb. 02, 2018trading_day	Feb. 07, 2018$ / sharesshares
Terra Nitrogen Company LP | Terra Nitrogen GP Inc [Member] | Subsequent Event
Subsequent Event [Line Items]
business acquisition, number of units purchased | shares			4,612,562
Business Acquisition, Share Price | $ / shares			$ 84
Scenario, Forecast [Member] | Terra Nitrogen Company LP | Terra Nitrogen GP Inc [Member]
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross | $	$ 390,000,000
TNCLP | Subsequent Event
Subsequent Event [Line Items]
Average trading days for which purchase price is greater | trading_day		20