Equifax (EFX) 10-Q 26 Apr 18 2018 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 13, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	EFX
Entity Registrant Name	EQUIFAX INC
Entity Central Index Key	33,185
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding (in shares)		120,284,441

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Operating revenue	$ 865.7	$ 832.2
Operating expenses:
Cost of services (exclusive of depreciation and amortization below)	342.8	300.8
Selling, general and administrative expenses	300.5	241.5
Depreciation and amortization	78.2	71.3
Total operating expenses	721.5	613.6
Operating income	144.2	218.6
Interest expense	(23.9)	(24.2)
Other income, net	2.9	1.3
Consolidated income before income taxes	123.2	195.7
Provision for income taxes	(29.4)	(40.3)
Consolidated net income	93.8	155.4
Less: Net income attributable to noncontrolling interests including redeemable noncontrolling interests	(2.9)	(2.1)
Net income attributable to Equifax	$ 90.9	$ 153.3
Basic earnings per common share:
Net income attributable to Equifax (in dollars per share)	$ 0.76	$ 1.28
Weighted-average shares used in computing basic earnings per share (in shares)	120.2	120
Diluted earnings per common share:
Net income attributable to Equifax (in dollars per share)	$ 0.75	$ 1.26
Weighted-average shares used in computing diluted earnings per share (in shares)	121.3	121.9
Dividends per common share (in dollars per share)	$ 0.39	$ 0.39

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income	$ 93.8	$ 155.4
Other comprehensive income:
Foreign currency translation adjustment	43	113.8
Change in unrecognized prior service cost and actuarial losses related to our pension and other postretirement benefit plans, net	3.9	2.5
Change in cumulative loss from cash flow hedging transactions, net	0	(0.4)
Comprehensive income	140.7	271.3
Equifax Shareholders
Net income	90.9	153.3
Other comprehensive income:
Foreign currency translation adjustment	41.3	112.4
Change in unrecognized prior service cost and actuarial losses related to our pension and other postretirement benefit plans, net	3.9	2.5
Change in cumulative loss from cash flow hedging transactions, net	0	(0.4)
Comprehensive income	136.1	267.8
Noncontrolling Interests
Net income	2.9	2.1
Other comprehensive income:
Foreign currency translation adjustment	1.7	1.4
Change in unrecognized prior service cost and actuarial losses related to our pension and other postretirement benefit plans, net	0	0
Change in cumulative loss from cash flow hedging transactions, net	0	0
Comprehensive income	$ 4.6	$ 3.5

CONSOLIDATED BALANCE SHEETS (Un

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 249.3	$ 336.4
Trade accounts receivable, net of allowance for doubtful accounts of $10.2 and $9.1 at March 31, 2018 and December 31, 2017, respectively	487.5	444.8
Prepaid expenses	97.6	94.3
Other current assets	83	122.9
Total current assets	917.4	998.4
Property and equipment:
Capitalized internal-use software and system costs	462.9	427.9
Data processing equipment and furniture	318.7	306.6
Land, buildings and improvements	213.8	212.5
Total property and equipment	995.4	947
Less accumulated depreciation and amortization	(404.5)	(380)
Total property and equipment, net	590.9	567
Goodwill	4,221.4	4,184
Indefinite-lived intangible assets	94.9	95
Purchased intangible assets, net	1,219.2	1,247
Other assets, net	152.3	142
Total assets	7,196.1	7,233.4
Current liabilities:
Short-term debt and current maturities of long-term debt	888.5	965.3
Accounts payable	106.7	110.3
Accrued expenses	181	160.9
Accrued salaries and bonuses	62	119.4
Deferred revenue	110.7	108.4
Other current liabilities	190	209.2
Total current liabilities	1,538.9	1,673.5
Long-term debt	1,739.6	1,739
Deferred income tax liabilities, net	304.9	305.1
Long-term pension and other postretirement benefit liabilities	172.4	175.8
Other long-term liabilities	103.4	101
Total liabilities	3,859.2	3,994.4
Commitments and Contingencies (see Note 5)
Equifax shareholders' equity:
Preferred stock, $0.01 par value: Authorized shares - 10.0; Issued shares - none	0	0
Common stock, $1.25 par value: Authorized shares - 300.0; Issued shares - 189.3 at March 31, 2018 and December 31, 2017; Outstanding shares - 120.3 and 120.1 at March 31, 2018 and December 31, 2017, respectively	236.6	236.6
Paid-in capital	1,336.6	1,332.7
Retained earnings	4,653.1	4,600.6
Accumulated other comprehensive loss	(366.8)	(412)
Treasury stock, at cost, 68.4 shares and 68.6 shares at March 31, 2018 and December 31, 2017, respectively	(2,578.9)	(2,577.6)
Stock held by employee benefit trusts, at cost, 0.6 shares at March 31, 2018 and December 31, 2017	(5.9)	(5.9)
Total Equifax shareholders' equity	3,274.7	3,174.4
Noncontrolling interests including redeemable noncontrolling interests	62.2	64.6
Total equity	3,336.9	3,239
Total liabilities and equity	$ 7,196.1	$ 7,233.4

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 10.2	$ 9.1
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, Authorized shares (in shares)	10,000,000	10,000,000
Preferred stock, Issued shares (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1.25	$ 1.25
Common stock, Authorized shares (in shares)	300,000,000	300,000,000
Common stock, Issued shares (in shares)	189,300,000	189,300,000
Common stock, Outstanding shares (in shares)	120,300,000	120,100,000
Treasury stock, shares (in shares)	68,400,000	68,600,000
Stock held by employee benefits trusts, shares (in shares)	600,000	600,000

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Consolidated net income	$ 93.8	$ 155.4
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Depreciation and amortization	79	72.1
Stock-based compensation expense	12.8	18.7
Deferred income taxes	(2.7)	(2.6)
Changes in assets and liabilities, excluding effects of acquisitions:
Accounts receivable, net	(39.6)	(22.7)
Other assets, current and long-term	37.9	(29.2)
Current and long term liabilities, excluding debt	(61.6)	(88)
Cash provided by operating activities	119.6	103.7
Investing activities:
Capital expenditures	(56.2)	(50.3)
Acquisitions, net of cash acquired	(13.9)	(7.3)
Cash received from sale of asset	0	8.6
Cash used in investing activities	(70.1)	(49)
Financing activities:
Net short-term (repayments) borrowings	(76.8)	46.4
Payments on long-term debt	0	(50)
Dividends paid to Equifax shareholders	(46.9)	(46.9)
Dividends paid to noncontrolling interests	(2.4)	(1.9)
Proceeds from exercise of stock options	2.2	9.4
Payment of taxes related to settlement of equity awards	(12.5)	(20.3)
Purchase of redeemable noncontrolling interests	(0.4)	0
Payment of contingent consideration	(1.5)	0
Cash used in financing activities	(138.3)	(63.3)
Effect of foreign currency exchange rates on cash and cash equivalents	1.7	2.5
Decrease in cash and cash equivalents	(87.1)	(6.1)
Cash and cash equivalents, beginning of period	336.4	129.3
Cash and cash equivalents, end of period	$ 249.3	$ 123.2

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY AND OTHER COMPREHENSIVE INCOME (Unaudited) - 3 months ended Mar. 31, 2018 - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Stock Held By Employee Benefits Trusts	Noncontrolling Interests
Beginning Balance (in shares) at Dec. 31, 2017		120.1
Beginning Balance at Dec. 31, 2017	$ 3,239	$ 236.6	$ 1,332.7	$ 4,600.6	$ (412)	$ (2,577.6)	$ (5.9)	$ 64.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	93.8			90.9				2.9
Other comprehensive income	46.9				45.2			1.7
Shares issued under stock and benefit plans, net of minimum tax withholdings (in shares)		0.2
Shares issued under stock and benefit plans, net of minimum tax withholdings	(10.2)		(8.9)			(1.3)
Cash dividends ($0.39 per share)	(47.1)			(47.1)
Dividends paid to employee benefits trusts	0.2		0.2
Stock-based compensation expense	12.8		12.8
Purchases of redeemable noncontrolling interests	(0.4)		(0.3)					(0.1)
Redeemable noncontrolling interest adjustment	0			4.5				(4.5)
Dividends paid to noncontrolling interests	(2.4)							(2.4)
Cumulative adjustment from change in accounting principle	4.2			4.2
Other	0.1		0.1
Ending Balance (in shares) at Mar. 31, 2018		120.3
Ending Balance at Mar. 31, 2018	3,336.9	$ 236.6	$ 1,336.6	$ 4,653.1	$ (366.8)	$ (2,578.9)	$ (5.9)	$ 62.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock authorized, amount for future purchases	$ 590.1

CONSOLIDATED STATEMENT OF CHAN8

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY AND OTHER COMPREHENSIVE INCOME (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Stockholders' Equity [Abstract]
Cash dividends, per share (in dollars per share)	$ 0.39	$ 0.39

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE LOSS - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Foreign currency translation	$ (62)	$ (103.3)
Unrecognized actuarial losses and prior service cost related to our pension and other postretirement benefit plans, net of accumulated tax of $94.3 and $95.6 at March 31, 2018 and December 31, 2017, respectively	(303.6)	(257.5)
Cash flow hedging transactions, net of accumulated tax of $0.7 at March 31, 2018 and December 31, 2017, respectively	(1.2)	(1.2)
Impact of Tax Cuts and Jobs Act of 2017	0	(50)
Accumulated other comprehensive loss	$ (366.8)	$ (412)

ACCUMULATED OTHER COMPREHENSI10

ACCUMULATED OTHER COMPREHENSIVE LOSS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Unrecognized actuarial losses and prior service cost related to pension and other postretirement benefit plans, accumulated tax	$ 94.3	$ 95.6
Cash flow hedging transactions, accumulated tax	$ 0.7	$ 0.7

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES As used herein, the terms Equifax, the Company, we, our and us refer to Equifax Inc., a Georgia corporation, and its consolidated subsidiaries as a combined entity, except where it is clear that the terms mean only Equifax Inc. Nature of Operations. We collect, organize and manage various types of financial, demographic, employment and marketing information. Our products and services enable businesses to make credit and service decisions, manage their portfolio risk, automate or outsource certain payroll-related tax and human resources business processes, and develop marketing strategies concerning consumers and commercial enterprises. We serve customers across a wide range of industries, including the financial services, mortgage, retail, telecommunications, utilities, automotive, brokerage, healthcare and insurance industries, as well as government agencies. We also enable consumers to manage and protect their financial health through a portfolio of products offered directly to consumers. As of March 31, 2018 , we operated in the following countries: Argentina, Australia, Canada, Chile, Costa Rica, Ecuador, El Salvador, Honduras, India, Ireland, Mexico, New Zealand, Paraguay, Peru, Portugal, Spain, the United Kingdom, or U.K., Uruguay and the United States of America, or U.S. We also offer Equifax branded credit services in India and Russia through joint ventures, we have investments in consumer and/or commercial credit information companies through joint ventures in Cambodia, Malaysia, Singapore and Dubai, and have an investment in a consumer and commercial credit information company in Brazil. We develop, maintain and enhance secured proprietary information databases through the compilation of consumer specific data, including credit, income, employment, asset, liquidity, net worth and spending activity, and business data, including credit and business demographics, that we obtain from a variety of sources, such as credit granting institutions, and income and tax information primarily from large to mid-sized companies in the U.S. We process this information utilizing our proprietary information management systems. We also provide information, technology and services to support debt collections and recovery management. Basis of Presentation. The accompanying unaudited Consolidated Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP, the instructions to Form 10-Q and applicable sections of SEC Regulation S-X. To understand our complete financial position and results, as defined by GAAP, this Form 10-Q should be read in conjunction with the Consolidated Financial Statements and the notes thereto included in our annual report on Form 10-K for the year ended December 31, 2017 (“ 2017 Form 10-K”). Our unaudited Consolidated Financial Statements reflect all adjustments which are, in the opinion of management, necessary for a fair presentation of the periods presented and are of a normal recurring nature. Earnings Per Share. Our basic earnings per share, or EPS, is calculated as net income attributable to Equifax divided by the weighted-average number of common shares outstanding during the period. Diluted EPS is calculated to reflect the potential dilution that would occur if stock options or other contracts to issue common stock were exercised and resulted in additional common shares outstanding. The net income amounts used in both our basic and diluted EPS calculations are the same. A reconciliation of the weighted-average outstanding shares used in the two calculations is as follows: Three Months Ended March 31, 2018 2017 (In millions) Weighted-average shares outstanding (basic) 120.2 120.0 Effect of dilutive securities: Stock options and restricted stock units 1.1 1.9 Weighted-average shares outstanding (diluted) 121.3 121.9 For the three months ended March 31, 2018 and 2017 , stock options that were anti-dilutive were no t material. Financial Instruments. Our financial instruments consist of cash and cash equivalents, accounts and notes receivable, accounts payable and short- and long-term debt. The carrying amounts of these items, other than long-term debt, approximate their fair market values due to the short-term nature of these instruments. The fair value of our fixed-rate debt is determined using Level 2 inputs such as quoted market prices for similar publicly traded instruments, and for non-publicly traded instruments through valuation techniques involving observable inputs based on the specific characteristics of the debt instrument. As of March 31, 2018 and December 31, 2017 , the fair value and carrying value of our long-term debt, including the current portion of long-term debt, was $2.1 billion . Derivatives and Hedging Activities . Although derivative financial instruments are not utilized for speculative purposes or as the Company’s primary risk management tool, derivatives have been used as a risk management tool to hedge the Company’s exposure to changes in interest rates and foreign exchange rates. We have used interest rate swaps and interest rate lock agreements to manage interest rate risk associated with our fixed and floating-rate borrowings. Forward contracts on various foreign currencies have been used to manage the foreign currency exchange rate risk of certain firm commitments denominated in foreign currencies. We recognize all derivatives on the balance sheet at fair value. Derivative valuations reflect the value of the instrument including the value associated with any material counterparty risk. Fair Value Measurements. Fair value is determined based on the assumptions marketplace participants use in pricing the asset or liability. We use a three level fair value hierarchy to prioritize the inputs used in valuation techniques between observable inputs that reflect quoted prices in active markets, inputs other than quoted prices with observable market data and unobservable data (e.g., a company’s own data). The following table presents items measured at fair value on a recurring basis: Fair Value Measurements at Reporting Date Using: Description Fair Value of Assets (Liabilities) at March 31, 2018 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (In millions) Deferred Compensation Plan Assets (1) $ 35.3 $ 35.3 $ — $ — Deferred Compensation Plan Liability (1) (35.3 ) — (35.3 ) — Total $ — $ 35.3 $ (35.3 ) $ — (1) We maintain deferred compensation plans that allow for certain management employees to defer the receipt of compensation (such as salary, incentive compensation and commissions) until a later date based on the terms of the plan. The liability representing benefits accrued for plan participants is valued at the quoted market prices of the participants’ investment elections. The asset consists of mutual funds reflective of the participants’ investment selections and is valued at daily quoted market prices. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis. We completed various acquisitions during the three months ended March 31, 2018 and the year ended December 31, 2017 . The values of net assets acquired and the resulting goodwill were recorded at fair value using Level 3 inputs. The majority of the related current assets acquired and liabilities assumed were recorded at their carrying values as of the date of acquisition, as their carrying values approximated their fair values due to their short-term nature. The fair values of goodwill and definite-lived intangible assets acquired in these acquisitions were internally estimated primarily based on the income approach. The income approach estimates fair value based on the present value of the cash flows that the assets are expected to generate in the future. We developed internal estimates for the expected cash flows and discount rates in the present value calculations. The fair value of the equity method investment assets acquired were internally estimated based on the market approach. Under the market approach, we estimated fair value based on market multiples of comparable companies. Trade Accounts Receivable and Allowance for Doubtful Accounts . Accounts receivable are stated at cost. Significant payment terms for customers are identified in the contract. We do not recognize interest income on our trade accounts receivable. Additionally, we generally do not require collateral from our customers related to our trade accounts receivable. The allowance for doubtful accounts for estimated losses on trade accounts receivable is based on historical write-off experience, an analysis of the aging of outstanding receivables, customer payment patterns and the establishment of specific reserves for customers in an adverse financial condition. We reassess the adequacy of the allowance for doubtful accounts each reporting period. Increases to the allowance for doubtful accounts are recorded as bad debt expense, which are included in selling, general and administrative expenses on the accompanying Consolidated Statements of Income. Other Current Assets. Other current assets on our Consolidated Balance Sheets primarily represent amounts in specifically designated accounts that hold the funds that are due to customers from our debt collection and recovery management services. As of March 31, 2018 , these assets were approximately $21.8 million , with a corresponding balance in other current liabilities. These amounts are restricted as to their current use, and will be released according to the specific customer agreements. Other current assets also include the current portion of the Company's right to consideration in exchange for goods or services that the entity has transferred to a customer (contract assets) as well as certain current tax accounts. Other Assets. Other assets on our Consolidated Balance Sheets primarily represents our investment in unconsolidated affiliates, our equity investment in Brazil, the long-term portion of the Company's right to consideration in exchange for goods or services that the entity has transferred to a customer (contract assets), assets related to life insurance policies covering certain officers of the Company, and employee benefit trust assets. Other Current Liabilities. Other current liabilities on our Consolidated Balance Sheets consist of corresponding amounts of other current assets, related to amounts in specifically designated accounts that hold the funds that are due to customers from our debt collection and recovery management services. As of March 31, 2018 , these funds were approximately $21.8 million . These amounts are restricted as to their current use, and will be released according to the specific customer agreements. Other current liabilities also include various accrued liabilities such as costs related to the cybersecurity incident as described more fully in Note 5, interest expense, accrued employee benefits, accrued taxes, accrued payroll, and accrued legal expenses. Change in Accounting Principle. In February 2018, the FASB issued ASU 2018-02, "Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income (Topic 220)." The guidance provides companies the option to eliminate the stranded tax effects associated with the change in the federal corporate income tax rate in the Tax Cuts and Jobs Act of 2017. The guidance is effective for annual periods beginning after December 31, 2018, with early adoption permitted for reporting periods for which financial statements have not been issued and can be applied retrospectively. As such, we have adopted this guidance as of December 31, 2017 resulting in the reclassification of $50.0 million from accumulated other comprehensive income to retained earnings related to the change in tax rate, as prescribed in the guidance. In May 2017, the FASB issued ASU 2017-09, "Compensation - Stock Compensation (Topic 718) Scope of Modification Accounting." The amendments in ASU 2017-09 require entities to apply modification accounting in Topic 718 only when changes to the terms or conditions of a share-based payment award result in changes to fair value, vesting conditions or the classification of the award as equity or liability. The adoption of this guidance did not have an impact on our financial position, results of operations or cash flows. In March 2017, the FASB issued ASU 2017-07 "Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (Topic 715)." This new guidance changes how employers that sponsor defined benefit pension plans and other postretirement plans present the net periodic benefit cost in the income statement. An employer is required to report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. Other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. The amendment also allows only the service cost component to be eligible for capitalization, when applicable. The retrospective adoption of this guidance resulted in the reclassification of $1.8 million from selling, general and administrative expenses to Other income, net in the Consolidated Statements of Income for the three months ended March 31, 2017 and the recognition of $1.0 million in selling, general, and administrative expenses and $2.2 million in Other income, net in the Consolidated Statements of Income for the three months ended March 31, 2018. We do not capitalize any components of pension costs. In January 2017, the FASB issued ASU 2017-01 "Clarifying the Definition of a Business (Topic 805)." This standard provides criteria to determine when an asset acquired or group of assets acquired is not a business. When substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This reduces the number of transactions that need to be further evaluated to determine if what is being acquired meets the definition of a business. The prospective adoption of this guidance did not have an impact on our financial position, results of operations or cash flows. In January 2016, the FASB issued ASU 2016-01 "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities." This new guidance requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure the equity investments that do not have readily determinable fair values at a new measurement alternative. Entities may choose to measure those investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. The amendments in this update also simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment, eliminate the requirement for public business entities to disclose the method and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet and require these entities to use the exit price notion when measuring fair value of financial instruments for disclosure purposes. This guidance also changes the presentation and disclosure requirements for financial instruments as well as clarifying the guidance related to valuation allowance assessments when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The adoption of this guidance did not have an impact on our financial position, results of operations, or cash flows. In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers." ASU 2014-09 is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. ASU 2014-09 also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. ASU 2014-09 was originally effective for annual reporting periods, and interim periods within that period, beginning after December 15, 2016 and early adoption was not permitted. On July 9, 2015, the FASB voted to defer the effective date by one year to December 15, 2017 for interim and annual reporting periods beginning after that date and permitted early adoption of the standard, but not before the original effective date of December 15, 2016. Companies may use either a full retrospective or a modified retrospective approach to adopt ASU 2014-09 As of January 1, 2018, we adopted the standard using the modified retrospective method. The new standard impacted our contracts that have a known quantity over a defined term with price increases or decreases over the contract life. Under the standard applicable during the period ended December 31, 2017, revenue related to these contracts were limited by billings in a period. Under the new standard applicable for the period beginning January 1, 2018, the total contract value is recognized ratably over the defined term or by using a transactional standalone selling price resulting in the creation of a contract asset or contract liability as transactions are delivered. Additionally, the changes to the cost capitalization practices did not materially impact our Consolidated Financial Statements. See Note 2 for further details. Recent Accounting Pronouncements. Derivatives and Hedging . In August 2017, the FASB issued ASU 2017-12, “Targeted Improvements to Accounting for Hedging Activities (Topic 815).” The amendments in ASU 2017-12 provide targeted improvements to the accounting for hedging activities to better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. The adoption of ASU 2017-12 will become effective for annual periods beginning after December 15, 2018, although early adoption is permitted. This guidance must be applied on a prospective basis. We do not expect the adoption of this guidance to have a material impact on our financial position, results of operations or cash flows. Goodwill. In January 2017, the FASB issued ASU 2017-04 "Simplifying the Test for Goodwill Impairment (Topic 350)." This standard eliminates Step 2 from the current goodwill impairment test, instead requiring an entity to recognize a goodwill impairment charge for the amount by which the goodwill carrying amount exceeds the reporting unit’s fair value. This guidance is effective for interim and annual goodwill impairment tests in fiscal years beginning after December 15, 2019 with early adoption permitted. This guidance must be applied on a prospective basis. We do not expect the adoption of this guidance to have a material impact on our financial position, results of operations or cash flows. Leases. In February 2016, the FASB issued ASU 2016-02 “Leases (Topic 842).” This standard requires lessees to record most leases on their balance sheets and expenses on their income statements in a manner similar to current lease accounting. The guidance also eliminates current real estate-specific provisions for all entities. For lessors, the guidance modifies the classification criteria and the accounting for sales-type and direct financing leases. All entities will classify leases to determine how to recognize lease-related revenue and expense. The guidance becomes effective for fiscal years and interim reporting periods beginning after December 15, 2018. We are evaluating the potential effects of the adoption of this standard on our Consolidated Financial Statements.

REVENUE

REVENUE	3 Months Ended
	Mar. 31, 2018
Revenue Recognition and Deferred Revenue [Abstract]
REVENUE	REVENUE On January 1, 2018 we adopted ASU 2014-09 using the modified retrospective approach. Comparative financial statements of prior periods have not been adjusted to apply the new method retrospectively. The new method of accounting was applied only to contracts that were not completed at the date of application as well as to the contracts entered into on or after January 1, 2018. Additionally, we reflected the aggregate effect of all modifications to these contracts when identifying the satisfied and unsatisfied performance obligations, as well as determining the transaction price and allocating the transaction price. The effect of the adoption on key financial statement line items for the quarter ended March 31, 2018 is as follows: Three Months Ended March 31, 2018 Change Income Statement Prior to ASU 2014-09 adoption As reported under ASU 2014-09 $ % (In millions, except per share data) Operating revenue $ 865.1 $ 865.7 $ 0.6 — % Consolidated income from operations before income taxes $ 122.6 $ 123.2 $ 0.6 — % Consolidated net income $ 93.4 $ 93.8 $ 0.4 — % Net income attributable to Equifax $ 90.5 $ 90.9 $ 0.4 — % Basic earnings per common share: Net income attributable to Equifax $ 0.76 $ 0.76 $ — — % Diluted earnings per common share: Net income attributable to Equifax $ 0.75 $ 0.75 $ — — % March 31, 2018 Change Balance Sheet Prior to ASU 2014-09 adoption As reported under ASU 2014-09 $ % (In millions) Other current assets $ 82.7 $ 83.0 $ 0.3 — % Other assets, net $ 146.6 $ 152.3 $ 5.7 4 % Total assets $ 7,190.1 $ 7,196.1 $ 6.0 — % Deferred income tax liabilities, net $ 304.0 $ 304.9 $ 0.9 — % Total liabilities $ 3,858.3 $ 3,859.2 $ 0.9 — % Retained earnings $ 4,648.0 $ 4,653.1 $ 5.1 — % Total equity $ 3,331.8 $ 3,336.9 $ 5.1 — % Total liabilities and equity $ 7,190.1 $ 7,196.1 $ 6.0 — % Revenue Recognition. Based on the information management reviews internally for evaluating operating segment performance and nature, amount, timing, and uncertainty of revenue and cash flows affected by economic factors, we disaggregate revenue as follows: Three Months Ended March 31, Change Consolidated Operating Revenue 2018 2017 $ % (In millions) Online Information Solutions $ 219.7 $ 225.2 $ (5.5 ) (2 )% Mortgage Solutions 41.7 38.6 $ 3.1 8 % Financial Marketing Services 45.5 46.3 $ (0.8 ) (2 )% Total U.S. Information Solutions 306.9 310.1 $ (3.2 ) (1 )% Asia Pacific 82.4 72.0 $ 10.4 14 % Europe 70.6 61.7 $ 8.9 15 % Latin America 56.0 51.0 $ 5.0 10 % Canada 35.5 31.5 $ 4.0 13 % Total International 244.5 216.2 $ 28.3 13 % Verification Services 128.4 115.1 $ 13.3 12 % Employer Services 82.7 84.9 $ (2.2 ) (3 )% Total Workforce Solutions 211.1 200.0 $ 11.1 6 % Global Consumer Solutions 103.2 105.9 $ (2.7 ) (3 )% Total operating revenue $ 865.7 $ 832.2 33.5 4 % Revenue is recognized when a performance obligation has been satisfied by transferring a promised good or service to a customer and the customer obtains control of the good or service. In order to recognize revenue, we note that the two parties must have an agreement that creates enforceable rights, the performance obligations must be distinct and the transaction price can be determined. Our revenue is derived from the provision of information services to our customers on a transactional basis, in which distinct services are delivered over time as the customer simultaneously receives and consumes the benefits of the services delivered. To measure our performance over time, the output method is utilized to measure the value to the customer based on the transfer to date of the services promised, with no rights of return once consumed. In these cases, revenue on transactional contracts with defined price but an undefined quantity is recognized utilizing the right to invoice expedient resulting in revenue being recognized when the service is provided and billed. Additionally, multi-year contracts with defined price but an undefined quantity that utilize tier pricing would be defined as a series of distinct performance obligations satisfied over time utilizing the same method of measurement, the output method, with no rights of return once consumed. This measurement method is applied on a monthly basis resulting in revenue being recognized when the service is provided and billed. Additionally, we recognize revenue from subscription-based contracts under which a customer pays a preset fee for a predetermined or unlimited number of transactions or services provided during the subscription period, generally one year. Revenue from subscription-based contracts having a preset number of transactions is recognized as the services are provided, using an effective transaction rate as the actual transactions are delivered. Any remaining revenue related to unfulfilled units is not recognized until the end of the related contract’s subscription period. Revenue from subscription-based contracts having an unlimited volume is recognized ratably during the contract term. Multi-year subscription contracts are analyzed to determine the full contract transaction price over the term of the contract and the subsequent price is ratably recognized over the full term of the contract. Revenue is recorded net of sales taxes. If at the outset of an arrangement, we determine that collectability is not reasonably assured, revenue is deferred until the earlier of when collectability becomes probable or the receipt of payment from the customer. If there is uncertainty as to the customer’s acceptance of the performance obligation, revenue is not recognized until the earlier of receipt of customer acceptance or expiration of the acceptance period. We sell certain offerings that contain multiple performance obligations. These obligations may include consumer or commercial information, file updates for certain solutions, services provided by our decisioning technologies personnel, training services, statistical models and other services. In order to account for each of these obligations separately, the delivered promises within our contracts must meet the criterion to be considered distinct performance obligations to our customer. If we determine that the arrangement does not contain separate distinct obligations, the performance obligations are bundled together until a distinct obligation is achieved. This may lead to the arrangement consideration being recognized as the final contract obligation is delivered to our customer or ratably over the term of the contract. Some of our arrangements with multiple performance obligations involve the delivery of services generated by a combination of services provided by one or more of our operating segments. No individual information service impacts the value or usage of other information services included in an arrangement and each service can be sold alone or, in most cases, purchased from another vendor without affecting the quality of use or value to the customer of the other information services included in the arrangement. Some of our products require the installation of interfaces or platforms by our technology personnel that allow our customers to interact with our proprietary information databases. These installation services do not meet the requirement for being distinct, thus any related installation fees are deferred when billed and are recognized over the expected period that the customer will benefit from the related services. Revenue from the delivery of one-time files and models is recognized as the service is provided and accepted, assuming all other revenue recognition criteria are met. The direct costs of installation of a customer are capitalized and amortized over the useful life of the identifiable asset. We record revenue on a net basis for those sales in which we have in substance acted as an agent or broker in the transaction and therefore do not have control. In certain instances within our debt collections and recovery management services in our International operating segment and within our Workforce Solutions operating segment, variable consideration is constrained due to the fact that the revenue is contingent on a particular outcome. Within our debt collections and recovery management businesses, revenue is calculated as a percentage of debt collected on behalf of the customer and, as such, is primarily recognized when the debt is collected assuming all other revenue recognition criteria are met. Within our Workforce Solutions operating segment, the fees for certain of our tax credits and incentives revenue are based on a percentage of the credit delivered to our clients. Revenue for these arrangements is recognized based on the achievement of milestones, upon calculation of the credit, approval from a regulatory agency or when the credit is utilized by our client, depending on the provisions of the client contract. Judgments and Uncertainties – Each performance obligation within a contract must be considered separately to ensure that appropriate accounting is performed for these distinct goods or services. These considerations include assessing the price at which the element is sold compared to its standalone selling price; concluding when the element will be delivered; evaluating collectability; and determining whether any contingencies exist in the related customer contract that impact the prices paid to us for the services. Contract Balances – The contract balances are generated when revenue recognized varies from billing in a given period. A contract asset is created when an entity transfers a good or service to a customer and recognizes more revenue than what has been billed. As of March 31, 2018 , the contract asset balance was $6.0 million . A contract liability is created when an entity transfers a good or service to a customer and recognizes less than what has been billed. As of March 31, 2018 there was no contract liability balance. Remaining Performance Obligation – We have elected to disclose only the remaining performance obligations for those contracts with an expected duration of greater than 1 year. We expect to recognize as revenue the following amounts related to our remaining performance obligations as of March 31, 2018 : Performance Obligation Balance (In millions) Less than 1 year $ 53.3 1 to 3 years 70.7 3 to 5 years 34.9 Thereafter 64.4 Total remaining performance obligation $ 223.3 Capitalized Costs – We capitalize certain costs related to obtaining and fulfilling a contract with a customer that we expect to recover, specifically sales commissions. These costs are amortized over the life of the contract. If the amortization period of the assets associated with the cost is less than one year, we have elected to expense the costs as incurred. As of the adoption date and March 31, 2018 , there were no costs that had been capitalized.

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND INTANGIBLE ASSETS	GOODWILL AND INTANGIBLE ASSETS Goodwill. Goodwill represents the cost in excess of the fair value of the net assets acquired in a business combination. Goodwill is tested for impairment at the reporting unit level on an annual basis and on an interim basis if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying value. We perform our annual goodwill impairment tests as of September 30. Changes in the amount of goodwill for the three months ended March 31, 2018 , are as follows: U.S. International Workforce Global Consumer Solutions Total (In millions) Balance, December 31, 2017 $ 1,071.3 $ 1,969.4 $ 952.1 $ 191.2 $ 4,184.0 Acquisitions — — 8.3 — 8.3 Adjustments to initial purchase price allocation — — — (1.0 ) (1.0 ) Foreign currency translation — 25.5 — 4.6 30.1 Balance, March 31, 2018 $ 1,071.3 $ 1,994.9 $ 960.4 $ 194.8 $ 4,221.4 Indefinite-Lived Intangible Assets. Indefinite-lived intangible assets consist of indefinite-lived reacquired rights representing the value of rights which we had granted to various affiliate credit reporting agencies that were reacquired in the U.S. and Canada. At the time we acquired these agreements, they were considered perpetual in nature under the accounting guidance in place at that time and, therefore, the useful lives are considered indefinite. Indefinite-lived intangible assets are not amortized. We are required to test indefinite-lived intangible assets for impairment annually and whenever events or circumstances indicate that there may be an impairment of the asset value. We perform our annual indefinite-lived intangible asset impairment test as of September 30. The estimated fair value of our indefinite-lived intangible assets exceeded the carrying value as of September 30, 2017. As a result, no impairment was recorded. Our indefinite-lived intangible asset carrying amounts did no t change materially during the three months ended March 31, 2018 . Purchased Intangible Assets. Purchased intangible assets represent the estimated acquisition date fair value of acquired intangible assets used in our business. Purchased data files represent the estimated acquisition date fair value of consumer credit files acquired primarily through the purchase of independent credit reporting agencies in the U.S., Canada and Australia. We expense the cost of modifying and updating credit files in the period such costs are incurred. Our reacquired rights represent the value of rights which we had granted to Computer Sciences Corporation that were reacquired in connection with the acquisition of certain assets of CSC Credit Services (“CSC Credit Services Acquisition”) in the fourth quarter of 2012. These reacquired rights are being amortized over the remaining term of the affiliation agreement on a straight-line basis until August 1, 2018. We amortize all of our purchased intangible assets on a straight-line basis. For additional information about the useful lives related to our purchased intangible assets, see Note 1 of the Notes to Consolidated Financial Statements in our 2017 Form 10-K. Purchased intangible assets at March 31, 2018 and December 31, 2017 consisted of the following: March 31, 2018 December 31, 2017 Gross Accumulated Amortization Net Gross Accumulated Amortization Net Definite-lived intangible assets: (In millions) Purchased data files $ 953.5 $ (272.5 ) $ 681.0 $ 955.7 $ (262.2 ) $ 693.5 Acquired software and technology 144.0 (75.1 ) 68.9 142.3 (66.6 ) 75.7 Customer relationships 776.2 (336.0 ) 440.2 772.4 (326.7 ) 445.7 Reacquired rights 73.3 (68.9 ) 4.4 73.3 (65.6 ) 7.7 Proprietary database 23.2 (9.2 ) 14.0 22.1 (8.7 ) 13.4 Non-compete agreements 4.4 (3.0 ) 1.4 14.1 (12.7 ) 1.4 Trade names and other intangible assets 21.0 (11.7 ) 9.3 20.2 (10.6 ) 9.6 Total definite-lived intangible assets $ 1,995.6 $ (776.4 ) $ 1,219.2 $ 2,000.1 $ (753.1 ) $ 1,247.0 Amortization expense related to purchased intangible assets was $ 42.2 million and $ 45.0 million during the three months ended March 31, 2018 and 2017 , respectively. Estimated future amortization expense related to definite-lived purchased intangible assets at March 31, 2018 is as follows: Years ending December 31, Amount (In millions) 2018 $ 112.6 2019 133.9 2020 126.4 2021 108.6 2022 102.7 Thereafter 635.0 $ 1,219.2

DEBT

DEBT	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
DEBT	DEBT Debt outstanding at March 31, 2018 and December 31, 2017 was as follows: March 31, 2018 December 31, 2017 (In millions) Commercial paper $ 485.7 $ 562.6 Revolver 100.0 100.0 Term Loan, due Nov 2018 400.0 400.0 Notes, 2.30%, due June 2021 500.0 500.0 Notes, 3.30%, due Dec 2022 500.0 500.0 Notes, 3.25%, due June 2026 275.0 275.0 Debentures, 6.90%, due July 2028 125.0 125.0 Notes, 7.00%, due July 2037 250.0 250.0 Other 2.8 2.7 Total debt 2,638.5 2,715.3 Less short-term debt and current maturities (888.5 ) (965.3 ) Less unamortized discounts and debt issuance costs (10.4 ) (11.0 ) Total long-term debt, net $ 1,739.6 $ 1,739.0 Senior Credit Facilities. We are party to a $900.0 million five -year unsecured revolving credit facility (the "Revolver") and an $800.0 million three -year delayed draw term loan facility (the "Term Loan") (the Revolver and the Term Loan collectively, the "Senior Credit Facilities"), with a group of financial institutions. The Revolver also has an accordion feature that allows us to request an increase in the total commitment to $1.2 billion . Borrowings may be used for general corporate purposes, including working capital, capital expenditures, acquisitions and share repurchase programs. The Revolver and the Term Loan are scheduled to expire in November 2020 and November 2018 , respectively. The Revolver includes an option to request a maximum of two one -year extensions of the maturity date. Availability of the Revolver for borrowings is reduced by the outstanding principal balance of our commercial paper notes and by any letters of credit issued under the facility. As of March 31, 2018 , there were $15.5 million of letters of credit outstanding. As of March 31, 2018 , there were $100.0 million outstanding borrowings under the Revolver and $298.8 million was available for borrowing. Commercial Paper Program. Our $900.0 million commercial paper program has been established through the private placement of commercial paper notes from time-to-time, in which borrowings bear interest at either a floating rate (based on LIBOR or other benchmarks), or a fixed rate, plus the applicable margin. Maturities of commercial paper can range from overnight to 397 days. Because the commercial paper ("CP") is backstopped by our Senior Credit Facilities, the amount of CP which may be issued under the program is reduced by the outstanding face amount of any letters of credit issued under the facility and, pursuant to our existing Board of Directors authorization, by the outstanding borrowings under our Revolver. At March 31, 2018 , $485.7 million in commercial paper notes was outstanding. Receivables Funding Facility. In 2017, Equifax entered into a $225.0 million , 2 -year receivables funding facility (the "Receivables Facility"), which matures in 2019. Under the Receivables Facility, Equifax and certain of its U.S. subsidiaries sell the eligible third-party receivables of its U.S. based business, to Equifax Receivables Funding LLC, a consolidated, wholly-owned, bankruptcy-remote subsidiary that may subsequently transfer, without recourse, an undivided interest in these accounts receivable to investors. The investors have no recourse to the Company’s other assets except for customary repurchase, warranty and indemnity claims. Creditors of Equifax do not have recourse to the assets of Equifax Receivables Funding LLC. The Receivables Facility contains standard representations, warranties and covenants made by Equifax and its U.S. subsidiaries in connection with the sale of the receivables, and any repurchase, warranty or indemnity obligations of the U.S. subsidiaries in connection with the sale of the receivables (but no obligations of Equifax Receivables Funding LLC) are guaranteed by Equifax. There were no borrowings under the Receivables Facility at March 31, 2018 . The Receivables Facility was supported by $214.7 million of accounts receivable as collateral at March 31, 2018 which, as a retained interest, is included in accounts receivable, net in our Consolidated Balance Sheets. For additional information about our debt agreements, see Note 5 of the Notes to Consolidated Financial Statements in our 2017 Form 10-K.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Cybersecurity Incident. In fiscal 2017, we experienced a cybersecurity incident following a criminal attack on our systems that involved the theft of certain personally identifiable information of U.S., Canadian and U.K. consumers. Criminals exploited a U.S. website application vulnerability to gain unauthorized access to our network. Based on our forensic investigation, the unauthorized access occurred from mid-May through July 2017. The information accessed primarily includes names, Social Security numbers, birth dates, addresses and, in some instances, driver’s license numbers. In addition, credit card numbers for approximately 209,000 U.S. and Canadian consumers, and certain dispute documents with personal identifying information for approximately 182,000 U.S. consumers, were accessed. The investigation also determined that personal information of approximately 19,000 Canadian consumers was impacted and approximately 860,000 potentially affected U.K. consumers were contacted regarding access to personal information. The Company acted promptly to notify the approximately 145.5 million U.S. consumers whose personally identifiable information the Company had identified in 2017 as potentially accessed. As a result of an ongoing analysis of data stolen in the 2017 cybersecurity incident, the Company announced in March 2018, that it had identified approximately 2.4 million U.S. consumers whose name and partial driver's license information were stolen, but who were not in the affected population of approximately 145.5 million consumers previously identified by the Company in 2017. The Company is in the process of notifying these additional consumers. Below is a rollforward of accrued liabilities and insurance receivable associated with the cybersecurity incident, beginning with the event date: Accrued Liabilities Insurance Receivable (In millions) Balance at September 7, 2017 $ — $ — (Expenses incurred) insurance receivable recorded (87.5 ) — Payments made (received) — — Balance at September 30, 2017 $ (87.5 ) $ — (Expenses incurred) insurance receivable recorded (76.5 ) 50.0 Payments made (received) 88.4 (15.0 ) Balance at December 31, 2017 $ (75.6 ) $ 35.0 (Expenses incurred) insurance receivable recorded (4.1 ) 10.0 Payments made (received) 52.2 (35.0 ) Balance at March 31, 2018 $ (27.5 ) $ 10.0 Product Liability. As a result of the cybersecurity incident, we offered TrustedID® Premier, a credit file monitoring and identity theft protection product, for free to all U.S. consumers who signed up through January 31, 2018. We have recorded the expenses necessary to provide this service to those who signed up. Through December 31, 2017, we recorded $50.7 million of product costs. In 2018, we have recorded $4.1 million in selling, general and administrative expenses in the accompanying Consolidated Statements of Income for the three months ended March 31, 2018. Expenses Incurred. Through December 31, 2017, the Company recorded $113.3 million of pretax expenses related to the cybersecurity incident. Expenses include costs to investigate and remediate the cybersecurity incident and legal and other professional services related thereto, all of which are expensed as incurred. We have included these costs in the above table as of December 31, 2017. Beginning in 2018, expenses included in the above table include only costs incurred as part of the delivery of the free product. Future Costs. We expect to incur significant legal and other professional services expenses associated with the cybersecurity incident in future periods. We will recognize these expenses as services are received. Costs related to the cybersecurity incident that will be incurred in future periods will also include increased expenses and capital investments for IT and security. We expect to incur increased expenses for insurance, finance, compliance activities, and to meet increased legal and regulatory requirements. Insurance Coverage. We maintain $125 million of cybersecurity insurance coverage, above a $7.5 million deductible, to limit our exposure to losses such as those related to the cybersecurity incident. During the three months ended March 31, 2018, the Company has recorded a receivable of $10.0 million . Since the announcement of the cybersecurity incident in September 2017, we have recorded insurance recoveries of $60.0 million and received payments of $50.0 million for costs incurred to date. Litigation, Claims and Government Investigations. As a result of the 2017 cybersecurity incident, we are subject to a significant number of proceedings and investigations. Following the 2017 cybersecurity incident, hundreds of class actions were filed by consumers against us in federal, state and Canadian courts relating to the 2017 cybersecurity incident. The plaintiffs in these cases, who purport to represent various classes of consumers and small businesses, generally claim to have been harmed by alleged actions and/or omissions by Equifax in connection with the 2017 cybersecurity incident and assert a variety of common law and statutory claims seeking monetary damages, injunctive relief and other related relief. In addition, certain class actions have been filed by financial institutions that allege their businesses have been placed at risk due to the 2017 cybersecurity incident and generally assert various common law claims such as claims for negligence and breach of contract, as well as, in some cases, statutory claims. The financial institution class actions seek compensatory damages and other related relief. Furthermore, a lawsuit has been filed by the City of Chicago with respect to the 2017 cybersecurity incident alleging violations of state laws and local ordinances governing protection of personal data, consumer fraud and breach notice requirements and business practices. Beginning on December 6, 2017 and pursuant to multiple subsequent orders, the U.S. Judicial Panel on Multidistrict Litigation ordered the consolidation and transfer for pre-trial proceedings with respect to the U.S. cases pending in federal court discussed above, including the City of Chicago action, to the Northern District of Georgia as the single U.S. District Court for centralized proceedings. Based on this order, consolidated proceedings with respect to U.S. consumer and financial institution federal class actions related to the 2017 cybersecurity incident have begun in the U.S. District Court for the Northern District of Georgia. Discovery has not yet begun and the cases are in a preliminary phase. In addition to these federal court proceedings, several putative class actions arising from the 2017 cybersecurity incident have been filed in the Fulton County Superior Court in Georgia. These cases have been transferred to a single judge in the Fulton County Business Court and three of the cases were consolidated into a single action. We have also appeared or notified the appropriate parties of representation in the Canadian class actions, but such actions are all at the preliminary stages. In addition, civil enforcement actions have been filed by the Attorneys General of Massachusetts and West Virginia, both of which are in the pre-trial stages, and a lawsuit has been filed by the City of San Francisco, which has been stayed by the court. We dispute the allegations in the complaints described above and intend to defend against such claims. In addition, we continue to cooperate with federal, state, city and foreign governmental agencies and officials investigating or otherwise seeking information and/or documents, including through Civil Investigative Demands, regarding the 2017 cybersecurity incident and related matters, including 49 state Attorneys General offices, as well as the District of Columbia, the Federal Trade Commission, the Consumer Finance Protection Bureau, the U.S. Securities and Exchange Commission (“SEC”), the U.S. Department of Justice, the New York Department of Financial Services, the New York Department of State - Division of Consumer Protection, other U.S. state regulators, including state banking regulators, the Financial Industry Regulatory Authority, certain Congressional committees of both the U.S. Senate and House of Representatives, the United Kingdom’s Financial Conduct Authority (“FCA”), the Information Commissioner’s Office in the United Kingdom and the Office of the Privacy Commissioner of Canada. Although we are actively cooperating with these investigations and inquiries, an adverse outcome to any such investigations and inquiries could subject us to fines or other obligations, which may have an adverse effect on how we operate our business or our results of operations. In addition, we continue to cooperate with the SEC and the U.S. Attorney’s Office for the Northern District of Georgia regarding investigations into the trading activities by certain of our employees in relation to the 2017 cybersecurity incident. TransUnion Litigation. On November 27, 2017, Trans Union LLC and TransUnion Interactive, Inc. (collectively, “TransUnion”) filed a lawsuit in the U.S. District Court for the Northern District of Illinois against Equifax Information Services LLC, Equifax Inc., and Equifax Consumer Services LLC f/k/a Equifax Consumer Services, Inc. In its lawsuit, TransUnion asserts claims for declaratory relief, breach of contract, and anticipatory repudiation of contract based on our Reciprocal Data Supply Agreement (the “Agreement”), which sets forth the pricing terms for credit monitoring supplied by the parties to each other. TransUnion seeks a declaration regarding its contractual rights under the Agreement and monetary damages. On January 26, 2018, we moved to dismiss TransUnion’s claims, and discovery in the case has been stayed until a ruling on that motion is issued. We dispute the allegations by TransUnion and intend to defend against its claims. Securities Class Action Litigation. A consolidated putative class action lawsuit alleging violations of the federal securities laws in connection with statements regarding our cybersecurity systems and controls is pending against us and certain of our current and former officers and directors in the U.S. District Court for the Northern District of Georgia. The complaints seek certification of a class of all persons who purchased or otherwise acquired Equifax securities from February 25, 2016 through September 15, 2017 and unspecified monetary damages, costs and attorneys’ fees. We dispute the allegations in these complaints and intend to defend against the claims. Shareholder Derivative Litigation. A consolidated putative shareholder derivative action naming certain of our current and former officers and directors as defendants and naming us as a nominal defendant is pending in the U.S. District Court for the Northern District of Georgia. Among other things, the complaints allege claims for breaches of fiduciary duties, unjust enrichment, corporate waste, and insider selling by certain defendants relating to the cybersecurity incident. Some of the complaints also allege claims for violations of certain federal securities laws relating to the cybersecurity incident. The complaints seek unspecified damages on behalf of the Company, plus certain equitable relief. We have appointed a committee of independent directors empowered to evaluate and respond in our best interests to the claims and related litigation demands. While we believe it is reasonably possible that we will incur losses associated with these proceedings and investigations, it is not possible to estimate the amount of loss or range of possible loss that might result from adverse judgments, settlements, penalties or other resolution of such proceedings and investigations based on the early stage of these proceedings and investigations, that alleged damages have not been specified, the uncertainty as to the certification of a class or classes and the size of any certified class, as applicable, and the lack of resolution on significant factual and legal issues. The Company will continue to evaluate information as it becomes known and will record an estimate for losses at the time or times when it is both probable that a loss has been incurred and the amount of the loss is reasonably estimable. The Company believes that the ultimate amount paid on these actions, claims and investigations could be material to the Company’s consolidated financial condition, results of operations, or cash flows in future periods. Additional lawsuits and claims related to the 2017 cybersecurity incident may be asserted by or on behalf of consumers, customers, shareholders or others seeking damages or other related relief and additional inquiries from governmental agencies may be received or investigations by governmental agencies commenced. Data Processing, Outsourcing Services and Other Agreements. We have separate agreements with IBM, Tata Consultancy Services and others to outsource portions of our computer data processing operations, applications development, business continuity and recovery services, help desk service and desktop support functions, operation of our voice and data networks, maintenance and related functions and to provide certain other administrative and operational services. Annual payment obligations in regard to these agreements vary due to factors such as the volume of data processed; changes in our servicing needs as a result of new product offerings, acquisitions or divestitures; the introduction of significant new technologies; foreign currency; or the general rate of inflation. In certain circumstances (e.g., a change in control or for our convenience), we may terminate these data processing and outsourcing agreements and, in doing so, certain of these agreements require us to pay significant termination fees. Guarantees and General Indemnifications. We may issue standby letters of credit and performance bonds in the normal course of business. The aggregate notional amount of all performance bonds and standby letters of credit was no t material at March 31, 2018 , and all have a remaining maturity of one year or less. We may issue other guarantees in the ordinary course of business. The maximum potential future payments we could be required to make under the guarantees in the ordinary course of business is no t material at March 31, 2018 . We have agreed to guarantee the liabilities and performance obligations (some of which have limitations) of a certain debt collections and recovery management variable interest entity under its commercial agreements. We have agreed to standard indemnification clauses in many of our lease agreements for office space, covering such things as tort, environmental and other liabilities that arise out of or relate to our use or occupancy of the leased premises. Certain of our credit agreements include provisions which require us to make payments to preserve an expected economic return to the lenders if that economic return is diminished due to certain changes in law or regulations. In conjunction with certain transactions, such as sales or purchases of operating assets or services in the ordinary course of business, or the disposition of certain assets or businesses, we sometimes provide routine indemnifications, the terms of which range in duration and sometimes are not limited. Additionally, the Company has entered into indemnification agreements with its directors and executive officers to indemnify such individuals to the fullest extent permitted by applicable law against liabilities that arise by reason of their status as directors or officers. The Company maintains directors and officers liability insurance coverage to reduce its exposure to such obligations. We cannot reasonably estimate our potential future payments under the guarantees and indemnities and related provisions described above because we cannot predict when and under what circumstances these provisions may be triggered. We had no accruals related to guarantees and indemnities on our Consolidated Balance Sheets at March 31, 2018 or December 31, 2017 . Contingencies. We are involved in legal and regulatory matters, government investigations, claims and litigation arising in the ordinary course of business. We periodically assess our exposure related to these matters based on the information which is available. We have recorded accruals in our Consolidated Financial Statements for those matters in which it is probable that we have incurred a loss and the amount of the loss, or range of loss, can be reasonably estimated. For additional information about these and other commitments and contingencies, see Note 6 of the Notes to Consolidated Financial Statements in our 2017 Form 10-K.

INCOME TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES We are subject to U.S. federal, state and international income taxes. We are generally no longer subject to federal, state, or international income tax examinations by tax authorities for years before 2015 with few exceptions. Due to the potential for resolution of state and foreign examinations, and the expiration of various statutes of limitations, it is reasonably possible that our gross unrecognized tax benefit balance may change within the next twelve months by a range of $0 to $22.2 million . The Tax Cuts and Jobs Act of 2017 (“Tax Act”), as signed by the President of the United States on December 22, 2017, significantly revises U.S. tax law. The legislation will positively impact the Company’s ongoing effective tax rate due to the reduction of the U.S. federal corporate tax rate from 35% to 21%. The Tax Act makes major changes to the U.S. international tax system. Under previous law, foreign earnings were subject to U.S. tax when repatriated to the U.S. Under the Tax Act, foreign earnings are generally exempt from U.S. tax. Additionally, there is a one-time deemed repatriation tax on undistributed foreign earnings and profits (the “transition tax”). The Tax Act imposes other U.S. taxes on “global intangible low taxed income” and “base erosion anti-abuse transactions.” Other significant changes include limitations on the deductibility of interest expense and executive compensation, and repeal of the deduction for domestic production activities. As a result of the current interpretation and estimated impact of the Tax Act, the Company recorded adjustments totaling a net tax benefit of $48.3 million in the fourth quarter of 2017 to provisionally account for the estimated impact. As permitted by Staff Accounting Bulletin No. 118, provisional amounts estimated based on information available as of December 31, 2017 have been made for the adjustments to deferred tax assets and liabilities, state taxes, equity compensation, the calculation of the transition tax, the valuation allowance related to the foreign tax credit carryover and the 2017 dividends. These amounts are subject to change as we obtain information necessary to complete the calculations and clarifications to the U.S. tax code as they occur. In all cases, we will continue to make and refine our calculations as additional analysis is completed. These changes could be material to income tax expense. During the three months ended March 31, 2018 , no material adjustments were made to the provisional amounts recorded at December 31, 2017. The Tax Act subjects a U.S. shareholder to tax on Global Intangible Low-Taxed Income ("GILTI") earned by certain foreign subsidiaries. The FASB Staff Q&A, Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or provide for the tax expense related to GILTI in the year the tax is incurred as a period expense only. Given the complexity of the GILTI provisions, we are still evaluating the effects of the GILTI provisions and have not yet determined our accounting policy. At March 31, 2018 , because are we still evaluating the GILTI provisions and our analysis of future taxable income that is subject to GILTI, we have included GILTI related to current year operations only in our estimated annual effective tax rate and have not provided additional GILTI on deferred items. Effective Tax Rate . Our effective income tax rate was 23.9% and 20.6% for the three months ended March 31, 2018 and March 31, 2017 , respectively. Although the statutory U.S. income tax rate applicable to corporations decreased in 2018 compared to 2017 due to the Tax Act that was enacted in the fourth quarter of 2017, our effective income tax rate in the first quarter of 2017 was lower than the first quarter of 2018 because the prior year period was more favorably impacted by the tax benefit from equity awards and the settlement of an income tax examination.

ACCUMULATED OTHER COMPREHENSI17

ACCUMULATED OTHER COMPREHENSIVE INCOME	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
ACCUMULATED OTHER COMPREHENSIVE INCOME	ACCUMULATED OTHER COMPREHENSIVE INCOME Changes in accumulated other comprehensive income by component, after tax, for the three months ended March 31, 2018 , are as follows: Foreign Pension and other Cash flow Total (In millions) Balance, December 31, 2017 $ (103.3 ) $ (307.5 ) $ (1.2 ) $ (412.0 ) Other comprehensive income before reclassifications 41.3 — — 41.3 Amounts reclassified from accumulated other comprehensive income — 3.9 — 3.9 Net current-period other comprehensive income 41.3 3.9 — 45.2 Balance, March 31, 2018 $ (62.0 ) $ (303.6 ) $ (1.2 ) $ (366.8 ) Reclassifications out of accumulated other comprehensive income for the three months ended March 31, 2018 , are as follows: Details about accumulated other Amount reclassified Affected line item in (In millions) Amortization of pension and other postretirement plan items: Prior service cost $ (0.2 ) (1) Recognized actuarial loss 5.4 (1) 5.2 Total before tax (1.3 ) Tax benefit $ 3.9 Net of tax (1) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (See Note 8 Benefit Plans for additional details). Changes in accumulated other comprehensive income related to noncontrolling interests were not material as of March 31, 2018 .

BENEFIT PLANS

BENEFIT PLANS	3 Months Ended
	Mar. 31, 2018
Retirement Benefits [Abstract]
BENEFIT PLANS	BENEFIT PLANS We sponsor defined benefit pension plans and defined contribution plans. For additional information about our benefit plans, see Note 10 of the Notes to Consolidated Financial Statements in our 2017 Form 10-K. The following table provides the components of net periodic benefit cost. The service cost component is included in selling, general and administrative expenses and the other components of net benefit cost are included in other income, net in the Consolidated Statements of Income, for the three months ended March 31, 2018 and 2017 : Pension Benefits Other Benefits Three Months Ended March 31, 2018 2017 2018 2017 (In millions) Service cost $ 0.9 $ 1.0 $ 0.1 $ 0.1 Interest cost 6.7 7.1 0.2 0.2 Expected return on plan assets (9.6 ) (9.3 ) (0.3 ) (0.3 ) Amortization of prior service cost 0.1 0.2 (0.3 ) (0.3 ) Recognized actuarial loss 5.0 3.8 0.4 0.4 Total net periodic benefit cost $ 3.1 $ 2.8 $ 0.1 $ 0.1

SEGMENT INFORMATION

SEGMENT INFORMATION	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION Reportable Segments. We manage our business and report our financial results through the following four reportable segments, which are the same as our operating segments: - U.S. Information Solutions ("USIS") - International - Workforce Solutions - Global Consumer Solutions The accounting policies of the reportable segments are the same as those described in our summary of significant accounting policies in Note 1 of the Notes to Consolidated Financial Statements in our 2017 Form 10-K. We evaluate the performance of these reportable segments based on their operating revenues, operating income and operating margins, excluding unusual or infrequent items, if any. Inter-segment sales and transfers are not material for all periods presented. The measurement criteria for segment profit or loss and segment assets are substantially the same for each reportable segment. All transactions between segments are accounted for at fair market value or cost depending on the nature of the transaction, and no timing differences occur between segments. A summary of segment products and services is as follows: U.S. Information Solutions. This segment includes consumer and commercial information services (such as credit information and credit scoring, credit modeling services and portfolio analytics (decisioning tools), which are derived from our databases of business credit and financial information, locate services, fraud detection and prevention services, identity verification services and other consulting services); mortgage loan information; financial marketing services; and identity management. International. This segment includes information services products, which includes consumer and commercial services (such as credit and financial information, credit scoring and credit modeling services), credit and other marketing products and services. In Asia Pacific, Europe, Latin America and Canada, we also provide information, technology and services to support debt collections and recovery management. Workforce Solutions. This segment includes employment, income and social security number verification services as well as complementary payroll-based transaction services and employment tax management services. Global Consumer Solutions. This segment includes credit information, credit monitoring and identity theft protection products sold directly and indirectly to consumers via the internet and in various hard-copy formats in the U.S., Canada, and the U.K. We also sell consumer and credit information to resellers who combine our information with other information to provide direct to consumer monitoring, reports and scores. Operating revenue and operating income by operating segment during the three months ended March 31, 2018 and 2017 are as follows: Three Months Ended (In millions) March 31, Operating revenue: 2018 2017 U.S. Information Solutions $ 306.9 $ 310.1 International 244.5 216.2 Workforce Solutions 211.1 200.0 Global Consumer Solutions 103.2 105.9 Total operating revenue $ 865.7 $ 832.2 Three Months Ended (In millions) March 31, Operating income: 2018 2017 U.S. Information Solutions $ 110.9 $ 129.7 International 36.7 29.8 Workforce Solutions 90.1 89.5 Global Consumer Solutions 30.1 30.8 General Corporate Expense (123.6 ) (61.2 ) Total operating income $ 144.2 $ 218.6 Total assets by operating segment at March 31, 2018 and December 31, 2017 are as follows: March 31, December 31, (In millions) 2018 2017 Total assets: U.S. Information Solutions $ 1,579.7 $ 1,587.3 International 3,174.8 3,145.7 Workforce Solutions 1,231.1 1,227.4 Global Consumer Solutions 251.6 254.0 General Corporate 958.9 1,019.0 Total assets $ 7,196.1 $ 7,233.4

SUMMARY OF SIGNIFICANT ACCOUN20

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations. We collect, organize and manage various types of financial, demographic, employment and marketing information. Our products and services enable businesses to make credit and service decisions, manage their portfolio risk, automate or outsource certain payroll-related tax and human resources business processes, and develop marketing strategies concerning consumers and commercial enterprises. We serve customers across a wide range of industries, including the financial services, mortgage, retail, telecommunications, utilities, automotive, brokerage, healthcare and insurance industries, as well as government agencies. We also enable consumers to manage and protect their financial health through a portfolio of products offered directly to consumers. As of March 31, 2018 , we operated in the following countries: Argentina, Australia, Canada, Chile, Costa Rica, Ecuador, El Salvador, Honduras, India, Ireland, Mexico, New Zealand, Paraguay, Peru, Portugal, Spain, the United Kingdom, or U.K., Uruguay and the United States of America, or U.S. We also offer Equifax branded credit services in India and Russia through joint ventures, we have investments in consumer and/or commercial credit information companies through joint ventures in Cambodia, Malaysia, Singapore and Dubai, and have an investment in a consumer and commercial credit information company in Brazil. We develop, maintain and enhance secured proprietary information databases through the compilation of consumer specific data, including credit, income, employment, asset, liquidity, net worth and spending activity, and business data, including credit and business demographics, that we obtain from a variety of sources, such as credit granting institutions, and income and tax information primarily from large to mid-sized companies in the U.S. We process this information utilizing our proprietary information management systems. We also provide information, technology and services to support debt collections and recovery management.
Basis of Presentation	Basis of Presentation. The accompanying unaudited Consolidated Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles, or GAAP, the instructions to Form 10-Q and applicable sections of SEC Regulation S-X. To understand our complete financial position and results, as defined by GAAP, this Form 10-Q should be read in conjunction with the Consolidated Financial Statements and the notes thereto included in our annual report on Form 10-K for the year ended December 31, 2017 (“ 2017 Form 10-K”). Our unaudited Consolidated Financial Statements reflect all adjustments which are, in the opinion of management, necessary for a fair presentation of the periods presented and are of a normal recurring nature.
Earnings Per Share	Earnings Per Share. Our basic earnings per share, or EPS, is calculated as net income attributable to Equifax divided by the weighted-average number of common shares outstanding during the period. Diluted EPS is calculated to reflect the potential dilution that would occur if stock options or other contracts to issue common stock were exercised and resulted in additional common shares outstanding. The net income amounts used in both our basic and diluted EPS calculations are the same.
Financial Instruments	Financial Instruments. Our financial instruments consist of cash and cash equivalents, accounts and notes receivable, accounts payable and short- and long-term debt. The carrying amounts of these items, other than long-term debt, approximate their fair market values due to the short-term nature of these instruments. The fair value of our fixed-rate debt is determined using Level 2 inputs such as quoted market prices for similar publicly traded instruments, and for non-publicly traded instruments through valuation techniques involving observable inputs based on the specific characteristics of the debt instrument.
Derivatives and Hedging Activities	Derivatives and Hedging Activities . Although derivative financial instruments are not utilized for speculative purposes or as the Company’s primary risk management tool, derivatives have been used as a risk management tool to hedge the Company’s exposure to changes in interest rates and foreign exchange rates. We have used interest rate swaps and interest rate lock agreements to manage interest rate risk associated with our fixed and floating-rate borrowings. Forward contracts on various foreign currencies have been used to manage the foreign currency exchange rate risk of certain firm commitments denominated in foreign currencies. We recognize all derivatives on the balance sheet at fair value. Derivative valuations reflect the value of the instrument including the value associated with any material counterparty risk.
Fair Value Measurements	Fair Value Measurements. Fair value is determined based on the assumptions marketplace participants use in pricing the asset or liability. We use a three level fair value hierarchy to prioritize the inputs used in valuation techniques between observable inputs that reflect quoted prices in active markets, inputs other than quoted prices with observable market data and unobservable data (e.g., a company’s own data). The following table presents items measured at fair value on a recurring basis: Fair Value Measurements at Reporting Date Using: Description Fair Value of Assets (Liabilities) at March 31, 2018 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (In millions) Deferred Compensation Plan Assets (1) $ 35.3 $ 35.3 $ — $ — Deferred Compensation Plan Liability (1) (35.3 ) — (35.3 ) — Total $ — $ 35.3 $ (35.3 ) $ — (1) We maintain deferred compensation plans that allow for certain management employees to defer the receipt of compensation (such as salary, incentive compensation and commissions) until a later date based on the terms of the plan. The liability representing benefits accrued for plan participants is valued at the quoted market prices of the participants’ investment elections. The asset consists of mutual funds reflective of the participants’ investment selections and is valued at daily quoted market prices. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis. We completed various acquisitions during the three months ended March 31, 2018 and the year ended December 31, 2017 . The values of net assets acquired and the resulting goodwill were recorded at fair value using Level 3 inputs. The majority of the related current assets acquired and liabilities assumed were recorded at their carrying values as of the date of acquisition, as their carrying values approximated their fair values due to their short-term nature. The fair values of goodwill and definite-lived intangible assets acquired in these acquisitions were internally estimated primarily based on the income approach. The income approach estimates fair value based on the present value of the cash flows that the assets are expected to generate in the future. We developed internal estimates for the expected cash flows and discount rates in the present value calculations. The fair value of the equity method investment assets acquired were internally estimated based on the market approach. Under the market approach, we estimated fair value based on market multiples of comparable companies.
Trade Accounts Receivable and Allowance for Doubtful Accounts	Trade Accounts Receivable and Allowance for Doubtful Accounts . Accounts receivable are stated at cost. Significant payment terms for customers are identified in the contract. We do not recognize interest income on our trade accounts receivable. Additionally, we generally do not require collateral from our customers related to our trade accounts receivable. The allowance for doubtful accounts for estimated losses on trade accounts receivable is based on historical write-off experience, an analysis of the aging of outstanding receivables, customer payment patterns and the establishment of specific reserves for customers in an adverse financial condition. We reassess the adequacy of the allowance for doubtful accounts each reporting period. Increases to the allowance for doubtful accounts are recorded as bad debt expense, which are included in selling, general and administrative expenses on the accompanying Consolidated Statements of Income.
Other Current Assets	Other Current Assets. Other current assets on our Consolidated Balance Sheets primarily represent amounts in specifically designated accounts that hold the funds that are due to customers from our debt collection and recovery management services. As of March 31, 2018 , these assets were approximately $21.8 million , with a corresponding balance in other current liabilities. These amounts are restricted as to their current use, and will be released according to the specific customer agreements. Other current assets also include the current portion of the Company's right to consideration in exchange for goods or services that the entity has transferred to a customer (contract assets) as well as certain current tax accounts.
Other Assets	Other Assets. Other assets on our Consolidated Balance Sheets primarily represents our investment in unconsolidated affiliates, our equity investment in Brazil, the long-term portion of the Company's right to consideration in exchange for goods or services that the entity has transferred to a customer (contract assets), assets related to life insurance policies covering certain officers of the Company, and employee benefit trust assets.
Other Current Liabilities	Other Current Liabilities. Other current liabilities on our Consolidated Balance Sheets consist of corresponding amounts of other current assets, related to amounts in specifically designated accounts that hold the funds that are due to customers from our debt collection and recovery management services. As of March 31, 2018 , these funds were approximately $21.8 million . These amounts are restricted as to their current use, and will be released according to the specific customer agreements. Other current liabilities also include various accrued liabilities such as costs related to the cybersecurity incident as described more fully in Note 5, interest expense, accrued employee benefits, accrued taxes, accrued payroll, and accrued legal expenses.
Change in Accounting Principle	Change in Accounting Principle. In February 2018, the FASB issued ASU 2018-02, "Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income (Topic 220)." The guidance provides companies the option to eliminate the stranded tax effects associated with the change in the federal corporate income tax rate in the Tax Cuts and Jobs Act of 2017. The guidance is effective for annual periods beginning after December 31, 2018, with early adoption permitted for reporting periods for which financial statements have not been issued and can be applied retrospectively. As such, we have adopted this guidance as of December 31, 2017 resulting in the reclassification of $50.0 million from accumulated other comprehensive income to retained earnings related to the change in tax rate, as prescribed in the guidance. In May 2017, the FASB issued ASU 2017-09, "Compensation - Stock Compensation (Topic 718) Scope of Modification Accounting." The amendments in ASU 2017-09 require entities to apply modification accounting in Topic 718 only when changes to the terms or conditions of a share-based payment award result in changes to fair value, vesting conditions or the classification of the award as equity or liability. The adoption of this guidance did not have an impact on our financial position, results of operations or cash flows. In March 2017, the FASB issued ASU 2017-07 "Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost (Topic 715)." This new guidance changes how employers that sponsor defined benefit pension plans and other postretirement plans present the net periodic benefit cost in the income statement. An employer is required to report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. Other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. The amendment also allows only the service cost component to be eligible for capitalization, when applicable. The retrospective adoption of this guidance resulted in the reclassification of $1.8 million from selling, general and administrative expenses to Other income, net in the Consolidated Statements of Income for the three months ended March 31, 2017 and the recognition of $1.0 million in selling, general, and administrative expenses and $2.2 million in Other income, net in the Consolidated Statements of Income for the three months ended March 31, 2018. We do not capitalize any components of pension costs. In January 2017, the FASB issued ASU 2017-01 "Clarifying the Definition of a Business (Topic 805)." This standard provides criteria to determine when an asset acquired or group of assets acquired is not a business. When substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This reduces the number of transactions that need to be further evaluated to determine if what is being acquired meets the definition of a business. The prospective adoption of this guidance did not have an impact on our financial position, results of operations or cash flows. In January 2016, the FASB issued ASU 2016-01 "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities." This new guidance requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure the equity investments that do not have readily determinable fair values at a new measurement alternative. Entities may choose to measure those investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. The amendments in this update also simplify the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment, eliminate the requirement for public business entities to disclose the method and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet and require these entities to use the exit price notion when measuring fair value of financial instruments for disclosure purposes. This guidance also changes the presentation and disclosure requirements for financial instruments as well as clarifying the guidance related to valuation allowance assessments when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The adoption of this guidance did not have an impact on our financial position, results of operations, or cash flows. In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers." ASU 2014-09 is a comprehensive new revenue recognition model that requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. ASU 2014-09 also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. ASU 2014-09 was originally effective for annual reporting periods, and interim periods within that period, beginning after December 15, 2016 and early adoption was not permitted. On July 9, 2015, the FASB voted to defer the effective date by one year to December 15, 2017 for interim and annual reporting periods beginning after that date and permitted early adoption of the standard, but not before the original effective date of December 15, 2016. Companies may use either a full retrospective or a modified retrospective approach to adopt ASU 2014-09 As of January 1, 2018, we adopted the standard using the modified retrospective method. The new standard impacted our contracts that have a known quantity over a defined term with price increases or decreases over the contract life. Under the standard applicable during the period ended December 31, 2017, revenue related to these contracts were limited by billings in a period. Under the new standard applicable for the period beginning January 1, 2018, the total contract value is recognized ratably over the defined term or by using a transactional standalone selling price resulting in the creation of a contract asset or contract liability as transactions are delivered. Additionally, the changes to the cost capitalization practices did not materially impact our Consolidated Financial Statements. See Note 2 for further details.
Recent Accounting Pronouncements	Recent Accounting Pronouncements. Derivatives and Hedging . In August 2017, the FASB issued ASU 2017-12, “Targeted Improvements to Accounting for Hedging Activities (Topic 815).” The amendments in ASU 2017-12 provide targeted improvements to the accounting for hedging activities to better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results. The adoption of ASU 2017-12 will become effective for annual periods beginning after December 15, 2018, although early adoption is permitted. This guidance must be applied on a prospective basis. We do not expect the adoption of this guidance to have a material impact on our financial position, results of operations or cash flows. Goodwill. In January 2017, the FASB issued ASU 2017-04 "Simplifying the Test for Goodwill Impairment (Topic 350)." This standard eliminates Step 2 from the current goodwill impairment test, instead requiring an entity to recognize a goodwill impairment charge for the amount by which the goodwill carrying amount exceeds the reporting unit’s fair value. This guidance is effective for interim and annual goodwill impairment tests in fiscal years beginning after December 15, 2019 with early adoption permitted. This guidance must be applied on a prospective basis. We do not expect the adoption of this guidance to have a material impact on our financial position, results of operations or cash flows. Leases. In February 2016, the FASB issued ASU 2016-02 “Leases (Topic 842).” This standard requires lessees to record most leases on their balance sheets and expenses on their income statements in a manner similar to current lease accounting. The guidance also eliminates current real estate-specific provisions for all entities. For lessors, the guidance modifies the classification criteria and the accounting for sales-type and direct financing leases. All entities will classify leases to determine how to recognize lease-related revenue and expense. The guidance becomes effective for fiscal years and interim reporting periods beginning after December 15, 2018. We are evaluating the potential effects of the adoption of this standard on our Consolidated Financial Statements.

SUMMARY OF SIGNIFICANT ACCOUN21

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Reconciliation of Weighted-Average Outstanding Shares used in Calculations of Basic and Diluted EPS	A reconciliation of the weighted-average outstanding shares used in the two calculations is as follows: Three Months Ended March 31, 2018 2017 (In millions) Weighted-average shares outstanding (basic) 120.2 120.0 Effect of dilutive securities: Stock options and restricted stock units 1.1 1.9 Weighted-average shares outstanding (diluted) 121.3 121.9
Items Measured at Fair Value on Recurring Basis	The following table presents items measured at fair value on a recurring basis: Fair Value Measurements at Reporting Date Using: Description Fair Value of Assets (Liabilities) at March 31, 2018 Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) (In millions) Deferred Compensation Plan Assets (1) $ 35.3 $ 35.3 $ — $ — Deferred Compensation Plan Liability (1) (35.3 ) — (35.3 ) — Total $ — $ 35.3 $ (35.3 ) $ — (1) We maintain deferred compensation plans that allow for certain management employees to defer the receipt of compensation (such as salary, incentive compensation and commissions) until a later date based on the terms of the plan. The liability representing benefits accrued for plan participants is valued at the quoted market prices of the participants’ investment elections. The asset consists of mutual funds reflective of the participants’ investment selections and is valued at daily quoted market prices.

REVENUE (Tables)

REVENUE (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Impact of ASU 2014-09	The effect of the adoption on key financial statement line items for the quarter ended March 31, 2018 is as follows: Three Months Ended March 31, 2018 Change Income Statement Prior to ASU 2014-09 adoption As reported under ASU 2014-09 $ % (In millions, except per share data) Operating revenue $ 865.1 $ 865.7 $ 0.6 — % Consolidated income from operations before income taxes $ 122.6 $ 123.2 $ 0.6 — % Consolidated net income $ 93.4 $ 93.8 $ 0.4 — % Net income attributable to Equifax $ 90.5 $ 90.9 $ 0.4 — % Basic earnings per common share: Net income attributable to Equifax $ 0.76 $ 0.76 $ — — % Diluted earnings per common share: Net income attributable to Equifax $ 0.75 $ 0.75 $ — — % March 31, 2018 Change Balance Sheet Prior to ASU 2014-09 adoption As reported under ASU 2014-09 $ % (In millions) Other current assets $ 82.7 $ 83.0 $ 0.3 — % Other assets, net $ 146.6 $ 152.3 $ 5.7 4 % Total assets $ 7,190.1 $ 7,196.1 $ 6.0 — % Deferred income tax liabilities, net $ 304.0 $ 304.9 $ 0.9 — % Total liabilities $ 3,858.3 $ 3,859.2 $ 0.9 — % Retained earnings $ 4,648.0 $ 4,653.1 $ 5.1 — % Total equity $ 3,331.8 $ 3,336.9 $ 5.1 — % Total liabilities and equity $ 7,190.1 $ 7,196.1 $ 6.0 — %
Disaggregation of Revenue	Based on the information management reviews internally for evaluating operating segment performance and nature, amount, timing, and uncertainty of revenue and cash flows affected by economic factors, we disaggregate revenue as follows: Three Months Ended March 31, Change Consolidated Operating Revenue 2018 2017 $ % (In millions) Online Information Solutions $ 219.7 $ 225.2 $ (5.5 ) (2 )% Mortgage Solutions 41.7 38.6 $ 3.1 8 % Financial Marketing Services 45.5 46.3 $ (0.8 ) (2 )% Total U.S. Information Solutions 306.9 310.1 $ (3.2 ) (1 )% Asia Pacific 82.4 72.0 $ 10.4 14 % Europe 70.6 61.7 $ 8.9 15 % Latin America 56.0 51.0 $ 5.0 10 % Canada 35.5 31.5 $ 4.0 13 % Total International 244.5 216.2 $ 28.3 13 % Verification Services 128.4 115.1 $ 13.3 12 % Employer Services 82.7 84.9 $ (2.2 ) (3 )% Total Workforce Solutions 211.1 200.0 $ 11.1 6 % Global Consumer Solutions 103.2 105.9 $ (2.7 ) (3 )% Total operating revenue $ 865.7 $ 832.2 33.5 4 %
Remaining Performance Obligation	We expect to recognize as revenue the following amounts related to our remaining performance obligations as of March 31, 2018 : Performance Obligation Balance (In millions) Less than 1 year $ 53.3 1 to 3 years 70.7 3 to 5 years 34.9 Thereafter 64.4 Total remaining performance obligation $ 223.3

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS (Tables)	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Amount of Goodwill	Changes in the amount of goodwill for the three months ended March 31, 2018 , are as follows: U.S. International Workforce Global Consumer Solutions Total (In millions) Balance, December 31, 2017 $ 1,071.3 $ 1,969.4 $ 952.1 $ 191.2 $ 4,184.0 Acquisitions — — 8.3 — 8.3 Adjustments to initial purchase price allocation — — — (1.0 ) (1.0 ) Foreign currency translation — 25.5 — 4.6 30.1 Balance, March 31, 2018 $ 1,071.3 $ 1,994.9 $ 960.4 $ 194.8 $ 4,221.4
Purchased Intangible Assets	Purchased intangible assets at March 31, 2018 and December 31, 2017 consisted of the following: March 31, 2018 December 31, 2017 Gross Accumulated Amortization Net Gross Accumulated Amortization Net Definite-lived intangible assets: (In millions) Purchased data files $ 953.5 $ (272.5 ) $ 681.0 $ 955.7 $ (262.2 ) $ 693.5 Acquired software and technology 144.0 (75.1 ) 68.9 142.3 (66.6 ) 75.7 Customer relationships 776.2 (336.0 ) 440.2 772.4 (326.7 ) 445.7 Reacquired rights 73.3 (68.9 ) 4.4 73.3 (65.6 ) 7.7 Proprietary database 23.2 (9.2 ) 14.0 22.1 (8.7 ) 13.4 Non-compete agreements 4.4 (3.0 ) 1.4 14.1 (12.7 ) 1.4 Trade names and other intangible assets 21.0 (11.7 ) 9.3 20.2 (10.6 ) 9.6 Total definite-lived intangible assets $ 1,995.6 $ (776.4 ) $ 1,219.2 $ 2,000.1 $ (753.1 ) $ 1,247.0
Estimated Future Amortization Expense	Estimated future amortization expense related to definite-lived purchased intangible assets at March 31, 2018 is as follows: Years ending December 31, Amount (In millions) 2018 $ 112.6 2019 133.9 2020 126.4 2021 108.6 2022 102.7 Thereafter 635.0 $ 1,219.2

DEBT (Tables)

DEBT (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Debt Outstanding	Debt outstanding at March 31, 2018 and December 31, 2017 was as follows: March 31, 2018 December 31, 2017 (In millions) Commercial paper $ 485.7 $ 562.6 Revolver 100.0 100.0 Term Loan, due Nov 2018 400.0 400.0 Notes, 2.30%, due June 2021 500.0 500.0 Notes, 3.30%, due Dec 2022 500.0 500.0 Notes, 3.25%, due June 2026 275.0 275.0 Debentures, 6.90%, due July 2028 125.0 125.0 Notes, 7.00%, due July 2037 250.0 250.0 Other 2.8 2.7 Total debt 2,638.5 2,715.3 Less short-term debt and current maturities (888.5 ) (965.3 ) Less unamortized discounts and debt issuance costs (10.4 ) (11.0 ) Total long-term debt, net $ 1,739.6 $ 1,739.0

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Business Insurance Recoveries	Below is a rollforward of accrued liabilities and insurance receivable associated with the cybersecurity incident, beginning with the event date: Accrued Liabilities Insurance Receivable (In millions) Balance at September 7, 2017 $ — $ — (Expenses incurred) insurance receivable recorded (87.5 ) — Payments made (received) — — Balance at September 30, 2017 $ (87.5 ) $ — (Expenses incurred) insurance receivable recorded (76.5 ) 50.0 Payments made (received) 88.4 (15.0 ) Balance at December 31, 2017 $ (75.6 ) $ 35.0 (Expenses incurred) insurance receivable recorded (4.1 ) 10.0 Payments made (received) 52.2 (35.0 ) Balance at March 31, 2018 $ (27.5 ) $ 10.0

ACCUMULATED OTHER COMPREHENSI26

ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income	Changes in accumulated other comprehensive income by component, after tax, for the three months ended March 31, 2018 , are as follows: Foreign Pension and other Cash flow Total (In millions) Balance, December 31, 2017 $ (103.3 ) $ (307.5 ) $ (1.2 ) $ (412.0 ) Other comprehensive income before reclassifications 41.3 — — 41.3 Amounts reclassified from accumulated other comprehensive income — 3.9 — 3.9 Net current-period other comprehensive income 41.3 3.9 — 45.2 Balance, March 31, 2018 $ (62.0 ) $ (303.6 ) $ (1.2 ) $ (366.8 )
Reclassification out of Accumulated Other Comprehensive Income	Reclassifications out of accumulated other comprehensive income for the three months ended March 31, 2018 , are as follows: Details about accumulated other Amount reclassified Affected line item in (In millions) Amortization of pension and other postretirement plan items: Prior service cost $ (0.2 ) (1) Recognized actuarial loss 5.4 (1) 5.2 Total before tax (1.3 ) Tax benefit $ 3.9 Net of tax (1) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (See Note 8 Benefit Plans for additional details).

BENEFIT PLANS (Tables)

BENEFIT PLANS (Tables)	3 Months Ended
	Mar. 31, 2018
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost	The following table provides the components of net periodic benefit cost. The service cost component is included in selling, general and administrative expenses and the other components of net benefit cost are included in other income, net in the Consolidated Statements of Income, for the three months ended March 31, 2018 and 2017 : Pension Benefits Other Benefits Three Months Ended March 31, 2018 2017 2018 2017 (In millions) Service cost $ 0.9 $ 1.0 $ 0.1 $ 0.1 Interest cost 6.7 7.1 0.2 0.2 Expected return on plan assets (9.6 ) (9.3 ) (0.3 ) (0.3 ) Amortization of prior service cost 0.1 0.2 (0.3 ) (0.3 ) Recognized actuarial loss 5.0 3.8 0.4 0.4 Total net periodic benefit cost $ 3.1 $ 2.8 $ 0.1 $ 0.1

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Operating Revenue, Operating Income and Total Assets by Operating Segment	Operating revenue and operating income by operating segment during the three months ended March 31, 2018 and 2017 are as follows: Three Months Ended (In millions) March 31, Operating revenue: 2018 2017 U.S. Information Solutions $ 306.9 $ 310.1 International 244.5 216.2 Workforce Solutions 211.1 200.0 Global Consumer Solutions 103.2 105.9 Total operating revenue $ 865.7 $ 832.2 Three Months Ended (In millions) March 31, Operating income: 2018 2017 U.S. Information Solutions $ 110.9 $ 129.7 International 36.7 29.8 Workforce Solutions 90.1 89.5 Global Consumer Solutions 30.1 30.8 General Corporate Expense (123.6 ) (61.2 ) Total operating income $ 144.2 $ 218.6 Total assets by operating segment at March 31, 2018 and December 31, 2017 are as follows: March 31, December 31, (In millions) 2018 2017 Total assets: U.S. Information Solutions $ 1,579.7 $ 1,587.3 International 3,174.8 3,145.7 Workforce Solutions 1,231.1 1,227.4 Global Consumer Solutions 251.6 254.0 General Corporate 958.9 1,019.0 Total assets $ 7,196.1 $ 7,233.4

SUMMARY OF SIGNIFICANT ACCOUN29

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of Weighted-Average Outstanding Shares used in Calculations of Basic and Diluted EPS (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accounting Policies [Abstract]
Weighted-average shares outstanding (basic) (in shares)	120.2	120
Effect of dilutive securities:
Stock options and restricted stock units (in shares)	1.1	1.9
Weighted-average shares outstanding (diluted) (in shares)	121.3	121.9

SUMMARY OF SIGNIFICANT ACCOUN30

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Fair value of long-term debt	$ 2,100		$ 2,100
Carrying value of long-term debt	2,100		2,100
Impact of Tax Cuts and Jobs Act of 2017	0		(50)
Selling, general and administrative expenses	300.5	$ 241.5
Other income, net	2.9	1.3
Accounting Standards Update 2018-02
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Impact of Tax Cuts and Jobs Act of 2017			$ 50
Accounting Standards Update 2017-07
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Selling, general and administrative expenses	1	(1.8)
Other income, net	2.2	$ 1.8
Other Current Assets
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted cash and cash equivalents	21.8
Other Current Liabilities
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Restricted cash and cash equivalents	$ 21.8

SUMMARY OF SIGNIFICANT ACCOUN31

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Items Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring $ in Millions	Mar. 31, 2018USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets	$ 35.3
Deferred Compensation Plan Liability	(35.3)
Total	0
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets	35.3
Deferred Compensation Plan Liability	0
Total	35.3
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets	0
Deferred Compensation Plan Liability	(35.3)
Total	(35.3)
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred Compensation Plan Assets	0
Deferred Compensation Plan Liability	0
Total	$ 0

REVENUE - Impact of ASU 2014-09

REVENUE - Impact of ASU 2014-09 (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Statement
Operating revenue	$ 865.7	$ 832.2
Consolidated income from operations before income taxes	123.2	195.7
Consolidated net income	93.8	155.4
Net income attributable to Equifax	$ 90.9	$ 153.3
Basic earnings per common share:
Net income per share (basic) (in dollars per share)	$ 0.76	$ 1.28
Diluted earnings per common share:
Diluted earnings per share (in dollars per share)	$ 0.75	$ 1.26
Change in %
Operating revenue	4.00%
Balance Sheet
Other current assets	$ 83		$ 122.9
Other assets, net	152.3		142
Total assets	7,196.1		7,233.4
Deferred income tax liabilities, net	304.9		305.1
Total liabilities	3,859.2		3,994.4
Retained earnings	4,653.1		4,600.6
Total equity	3,336.9		3,239
Total liabilities and equity	$ 7,196.1		$ 7,233.4
Accounting Standards Update 2014-09
Change in %
Operating revenue	0.00%
Consolidated income from operations before income taxes	0.00%
Consolidated net income	0.00%
Net income attributable to Equifax	0.00%
Basic earnings per common share:
Net income attributable to Equifax	0.00%
Diluted earnings per common share:
Net income attributable to Equifax	0.00%
Change in %
Other current assets	0.00%
Other assets, net	4.00%
Total assets	0.00%
Deferred income tax liabilities, net	0.00%
Total liabilities	0.00%
Retained earnings	0.00%
Total equity	0.00%
Total liabilities and equity	0.00%
Prior to ASU 2014-09 adoption
Income Statement
Operating revenue	$ 865.1
Consolidated income from operations before income taxes	122.6
Consolidated net income	93.4
Net income attributable to Equifax	$ 90.5
Basic earnings per common share:
Net income per share (basic) (in dollars per share)	$ 0.76
Diluted earnings per common share:
Diluted earnings per share (in dollars per share)	$ 0.75
Balance Sheet
Other current assets	$ 82.7
Other assets, net	146.6
Total assets	7,190.1
Deferred income tax liabilities, net	304
Total liabilities	3,858.3
Retained earnings	4,648
Total equity	3,331.8
Total liabilities and equity	7,190.1
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Income Statement
Operating revenue	0.6
Consolidated income from operations before income taxes	0.6
Consolidated net income	0.4
Net income attributable to Equifax	$ 0.4
Basic earnings per common share:
Net income per share (basic) (in dollars per share)	$ 0
Diluted earnings per common share:
Diluted earnings per share (in dollars per share)	$ 0
Balance Sheet
Other current assets	$ 0.3
Other assets, net	5.7
Total assets	6
Deferred income tax liabilities, net	0.9
Total liabilities	0.9
Retained earnings	5.1
Total equity	5.1
Total liabilities and equity	$ 6

REVENUE - Disaggregation of Rev

REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Operating revenue	$ 865.7	$ 832.2
Change in revenue	$ 33.5
Operating revenue	4.00%
Operating Segments | U.S. Information Solutions
Disaggregation of Revenue [Line Items]
Operating revenue	$ 306.9	310.1
Change in revenue	$ (3.2)
Operating revenue	(1.00%)
Operating Segments | U.S. Information Solutions | Online Information Solutions
Disaggregation of Revenue [Line Items]
Operating revenue	$ 219.7	225.2
Change in revenue	$ (5.5)
Operating revenue	(2.00%)
Operating Segments | U.S. Information Solutions | Mortgage Solutions
Disaggregation of Revenue [Line Items]
Operating revenue	$ 41.7	38.6
Change in revenue	$ 3.1
Operating revenue	8.00%
Operating Segments | U.S. Information Solutions | Financial Marketing Services
Disaggregation of Revenue [Line Items]
Operating revenue	$ 45.5	46.3
Change in revenue	$ (0.8)
Operating revenue	(2.00%)
Operating Segments | International
Disaggregation of Revenue [Line Items]
Operating revenue	$ 244.5	216.2
Change in revenue	$ 28.3
Operating revenue	13.00%
Operating Segments | International | Asia Pacific
Disaggregation of Revenue [Line Items]
Operating revenue	$ 82.4	72
Change in revenue	$ 10.4
Operating revenue	14.00%
Operating Segments | International | Europe
Disaggregation of Revenue [Line Items]
Operating revenue	$ 70.6	61.7
Change in revenue	$ 8.9
Operating revenue	15.00%
Operating Segments | International | Latin America
Disaggregation of Revenue [Line Items]
Operating revenue	$ 56	51
Change in revenue	$ 5
Operating revenue	10.00%
Operating Segments | International | Canada
Disaggregation of Revenue [Line Items]
Operating revenue	$ 35.5	31.5
Change in revenue	$ 4
Operating revenue	13.00%
Operating Segments | Workforce Solutions
Disaggregation of Revenue [Line Items]
Operating revenue	$ 211.1	200
Change in revenue	$ 11.1
Operating revenue	6.00%
Operating Segments | Workforce Solutions | Verification Services
Disaggregation of Revenue [Line Items]
Operating revenue	$ 128.4	115.1
Change in revenue	$ 13.3
Operating revenue	12.00%
Operating Segments | Workforce Solutions | Employer Services
Disaggregation of Revenue [Line Items]
Operating revenue	$ 82.7	84.9
Change in revenue	$ (2.2)
Operating revenue	(3.00%)
Operating Segments | Global Consumer Solutions
Disaggregation of Revenue [Line Items]
Operating revenue	$ 103.2	$ 105.9
Change in revenue	$ (2.7)
Operating revenue	(3.00%)

REVENUE - Narrative (Details)

REVENUE - Narrative (Details)	Mar. 31, 2018USD ($)
Revenue Recognition and Deferred Revenue [Abstract]
Contract asset balance	$ 6,000,000
Contract liability balance	0
Capitalized contract cost	$ 0

REVENUE - Remaining Performance

REVENUE - Remaining Performance Obligation (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation period	1 year
Total remaining performance obligation	$ 53.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation period	2 years
Total remaining performance obligation	$ 70.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation period	2 years
Total remaining performance obligation	$ 34.9
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation period
Total remaining performance obligation	$ 223.3

GOODWILL AND INTANGIBLE ASSET36

GOODWILL AND INTANGIBLE ASSETS - Changes in Amount of Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
Goodwill [Roll Forward]
Balance, Beginning of period	$ 4,184
Acquisitions	8.3
Adjustments to initial purchase price allocation	(1)
Foreign currency translation	30.1
Balance, End of period	4,221.4
U.S. Information Solutions
Goodwill [Roll Forward]
Balance, Beginning of period	1,071.3
Acquisitions	0
Adjustments to initial purchase price allocation	0
Foreign currency translation	0
Balance, End of period	1,071.3
International
Goodwill [Roll Forward]
Balance, Beginning of period	1,969.4
Acquisitions	0
Adjustments to initial purchase price allocation	0
Foreign currency translation	25.5
Balance, End of period	1,994.9
Workforce Solutions
Goodwill [Roll Forward]
Balance, Beginning of period	952.1
Acquisitions	8.3
Adjustments to initial purchase price allocation	0
Foreign currency translation	0
Balance, End of period	960.4
Global Consumer Solutions
Goodwill [Roll Forward]
Balance, Beginning of period	191.2
Acquisitions	0
Adjustments to initial purchase price allocation	(1)
Foreign currency translation	4.6
Balance, End of period	$ 194.8

GOODWILL AND INTANGIBLE ASSET37

GOODWILL AND INTANGIBLE ASSETS - Additional Information (Details) - USD ($)	Sep. 30, 2017	Mar. 31, 2018	Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment of intangible assets, indefinite-lived	$ 0
Amortization expense related to purchased intangible assets		$ 42,200,000	$ 45,000,000

GOODWILL AND INTANGIBLE ASSET38

GOODWILL AND INTANGIBLE ASSETS - Purchased Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	$ 1,995.6	$ 2,000.1
Accumulated Amortization	(776.4)	(753.1)
Net	1,219.2	1,247
Purchased data files
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	953.5	955.7
Accumulated Amortization	(272.5)	(262.2)
Net	681	693.5
Acquired software and technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	144	142.3
Accumulated Amortization	(75.1)	(66.6)
Net	68.9	75.7
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	776.2	772.4
Accumulated Amortization	(336)	(326.7)
Net	440.2	445.7
Reacquired rights
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	73.3	73.3
Accumulated Amortization	(68.9)	(65.6)
Net	4.4	7.7
Proprietary database
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	23.2	22.1
Accumulated Amortization	(9.2)	(8.7)
Net	14	13.4
Non-compete agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	4.4	14.1
Accumulated Amortization	(3)	(12.7)
Net	1.4	1.4
Trade names and other intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross	21	20.2
Accumulated Amortization	(11.7)	(10.6)
Net	$ 9.3	$ 9.6

GOODWILL AND INTANGIBLE ASSET39

GOODWILL AND INTANGIBLE ASSETS - Estimated Future Amortization Expense (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
2,018	$ 112.6
2,019	133.9
2,020	126.4
2,021	108.6
2,022	102.7
Thereafter	635
Net	$ 1,219.2	$ 1,247

DEBT - Debt Outstanding (Detail

DEBT - Debt Outstanding (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total debt	$ 2,638.5	$ 2,715.3
Less short-term debt and current maturities	(888.5)	(965.3)
Less unamortized discounts and debt issuance costs	(10.4)	(11)
Total long-term debt, net	1,739.6	1,739
Commercial paper
Debt Instrument [Line Items]
Total debt	485.7	562.6
Revolver
Debt Instrument [Line Items]
Total debt	100	100
Term Loan, due Nov 2018
Debt Instrument [Line Items]
Total debt	400	400
Notes, 2.30%, due June 2021
Debt Instrument [Line Items]
Total debt	$ 500	500
Debt, interest rate	2.30%
Debt, maturity date	2021-06
Notes, 3.30%, due Dec 2022
Debt Instrument [Line Items]
Total debt	$ 500	500
Debt, interest rate	3.30%
Debt, maturity date	2022-12
Notes, 3.25%, due June 2026
Debt Instrument [Line Items]
Total debt	$ 275	275
Debt, interest rate	3.25%
Debt, maturity date	2026-06
Debentures, 6.90%, due July 2028
Debt Instrument [Line Items]
Total debt	$ 125	125
Debt, interest rate	6.90%
Debt, maturity date	2028-07
Notes, 7.00%, due July 2037
Debt Instrument [Line Items]
Total debt	$ 250	250
Debt, interest rate	7.00%
Debt, maturity date	2037-07
Other
Debt Instrument [Line Items]
Total debt	$ 2.8	$ 2.7

DEBT - Additional Information (

DEBT - Additional Information (Details)	3 Months Ended
	Mar. 31, 2018USD ($)extension	Dec. 31, 2017USD ($)
Debt Instrument [Line Items]
Line of credit facility, potential maximum borrowing capacity	$ 1,200,000,000
Commercial paper notes	900,000,000
Long-term Debt	2,638,500,000	$ 2,715,300,000
Receivables Securitization Facility
Debt Instrument [Line Items]
Credit facility borrowing capacity	225,000,000
Debt instrument, term		2 years
Outstanding borrowings	0
Debt Instrument, Collateral Amount	$ 214,700,000
Maximum
Debt Instrument [Line Items]
Debt instrument, term	1 year
Commercial paper, maturity period range	397 days
Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility borrowing capacity	$ 900,000,000
Debt instrument, term	5 years
Line of credit facility, expiration date	Nov. 30, 2020
Line of credit facility, expiration date, maximum number of extensions | extension	2
Line of credit facility, expiration date, extension period	1 year
Outstanding borrowings	$ 100,000,000
Line of credit facility, available for borrowing	298,800,000
Term Loan
Debt Instrument [Line Items]
Credit facility borrowing capacity	$ 800,000,000
Debt instrument, term	3 years
Line of credit facility, expiration date	Nov. 30, 2018
Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding, amount	$ 15,500,000

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Additional Information (Details) customer in Thousands	1 Months Ended	3 Months Ended		7 Months Ended	12 Months Ended
	Sep. 30, 2017USD ($)	Mar. 31, 2018USD ($)office	Dec. 31, 2017USD ($)	Mar. 31, 2018USD ($)office	Dec. 31, 2017USD ($)customer	Sep. 07, 2017USD ($)
Commitments and Contingencies Disclosure [Line Items]
Accruals related to guarantees and indemnities		$ 0	$ 0	$ 0	$ 0
Maximum
Commitments and Contingencies Disclosure [Line Items]
Debt instrument, term (or less)		1 year
Cybersecurity Incident
Commitments and Contingencies Disclosure [Line Items]
Number of customers impacted | customer					145,500
Cybersecurity incident remediation, legal, and other professional costs	$ 87,500,000	$ 4,100,000	76,500,000
Insurance settlements receivable	0	10,000,000	35,000,000	10,000,000	$ 35,000,000	$ 0
Insurance recoveries				60,000,000
Proceeds from insurance settlement	$ 0	$ 35,000,000	$ 15,000,000	$ 50,000,000
Number of state attorneys general offices company is in cooperation with | office		49		49
Cybersecurity Incident | United States and Canada
Commitments and Contingencies Disclosure [Line Items]
Number of customers, credit card information accessed | customer					209
Cybersecurity Incident | United States
Commitments and Contingencies Disclosure [Line Items]
Number of customers, personal information accessed | customer					182
Number of customers, name and partial driver's license information stolen | customer					2,400
Cybersecurity Incident | Canada
Commitments and Contingencies Disclosure [Line Items]
Number of customers, personal information accessed | customer					19
Cybersecurity Incident | United Kingdom
Commitments and Contingencies Disclosure [Line Items]
Number of customers, personal information accessed | customer					860
Free Credit File Monitoring And Identity Theft Protection Offering
Commitments and Contingencies Disclosure [Line Items]
Cybersecurity incident remediation, legal, and other professional costs				$ 50,700,000
Free Credit File Monitoring And Identity Theft Protection Offering | Selling, General and Administrative Expenses
Commitments and Contingencies Disclosure [Line Items]
Cybersecurity incident remediation, legal, and other professional costs		$ 4,100,000
Investigation, Remediation, Legal, And Other Professional Services
Commitments and Contingencies Disclosure [Line Items]
Cybersecurity incident remediation, legal, and other professional costs					$ 113,300,000
Insurance coverage		125,000,000
Insurance coverage deductible		$ 7,500,000

COMMITMENTS AND CONTINGENCIES43

COMMITMENTS AND CONTINGENCIES - Business Insurance Recoveries (Details) - Cybersecurity Incident - USD ($) $ in Millions	1 Months Ended	3 Months Ended		7 Months Ended
	Sep. 30, 2017	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2018
Accrued Liabilities
Beginning Balance	$ 0	$ (75.6)	$ (87.5)
(Expenses incurred) insurance receivable recorded	(87.5)	(4.1)	(76.5)
Payments made (received)	0	52.2	88.4
Ending Balance	(87.5)	(27.5)	(75.6)	$ (27.5)
Insurance Receivable
Beginning Balance	0	35	0
(Expenses incurred) insurance receivable recorded	0	10	50
Payments made (received)	0	(35)	(15)	(50)
Ending Balance	$ 0	$ 10	$ 35	$ 10

INCOME TAXES - Additional Infor

INCOME TAXES - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Tax Cuts and Jobs Act of 2017, income tax benefit		$ 48,300,000
Effective income tax rate	23.90%		20.60%
Minimum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Decrease in unrecognized tax benefits is reasonably possible	$ 0
Increase in unrecognized tax benefits is reasonably possible	0
Maximum
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Decrease in unrecognized tax benefits is reasonably possible	22,200,000
Increase in unrecognized tax benefits is reasonably possible	$ 22,200,000

ACCUMULATED OTHER COMPREHENSI45

ACCUMULATED OTHER COMPREHENSIVE INCOME - Changes In Accumulated Other Comprehensive Income (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 3,239
Net current-period other comprehensive income	46.9
Ending Balance	3,336.9
Foreign currency
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(103.3)
Other comprehensive income before reclassifications	41.3
Amounts reclassified from accumulated other comprehensive income	0
Net current-period other comprehensive income	41.3
Ending Balance	(62)
Pension and other postretirement benefit plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(307.5)
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	3.9
Net current-period other comprehensive income	3.9
Ending Balance	(303.6)
Cash flow hedging transactions
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(1.2)
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	0
Net current-period other comprehensive income	0
Ending Balance	(1.2)
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(412)
Other comprehensive income before reclassifications	41.3
Amounts reclassified from accumulated other comprehensive income	3.9
Net current-period other comprehensive income	45.2
Ending Balance	$ (366.8)

ACCUMULATED OTHER COMPREHENSI46

ACCUMULATED OTHER COMPREHENSIVE INCOME - Reclassifications Out Of Accumulated Other Comprehensive Income (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
Prior service cost
Amortization of pension and other postretirement plan items:
Total net periodic benefit cost, before tax	$ (0.2)
Recognized actuarial loss
Amortization of pension and other postretirement plan items:
Total net periodic benefit cost, before tax	5.4
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Amortization of pension and other postretirement plan items:
Total net periodic benefit cost, before tax	5.2
Total net periodic benefit cost, tax benefit	(1.3)
Total net periodic benefit cost, net of tax	$ 3.9

BENEFIT PLANS - Components of N

BENEFIT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0.9	$ 1
Interest cost	6.7	7.1
Expected return on plan assets	(9.6)	(9.3)
Amortization of prior service cost	0.1	0.2
Recognized actuarial loss	5	3.8
Total net periodic benefit cost	3.1	2.8
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.1	0.1
Interest cost	0.2	0.2
Expected return on plan assets	(0.3)	(0.3)
Amortization of prior service cost	(0.3)	(0.3)
Recognized actuarial loss	0.4	0.4
Total net periodic benefit cost	$ 0.1	$ 0.1

SEGMENT INFORMATION - Additiona

SEGMENT INFORMATION - Additional Information (Details)	3 Months Ended
	Mar. 31, 2018segment
Segment Reporting [Abstract]
Number of operating segments	4
Number of reporting segments	4

SEGMENT INFORMATION - Operating

SEGMENT INFORMATION - Operating Revenue and Operating Income by Operating Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Operating revenue	$ 865.7	$ 832.2
Operating income	144.2	218.6
General Corporate Expense
Segment Reporting Information [Line Items]
Operating income	(123.6)	(61.2)
U.S. Information Solutions | Operating Segments
Segment Reporting Information [Line Items]
Operating revenue	306.9	310.1
Operating income	110.9	129.7
International | Operating Segments
Segment Reporting Information [Line Items]
Operating revenue	244.5	216.2
Operating income	36.7	29.8
Workforce Solutions | Operating Segments
Segment Reporting Information [Line Items]
Operating revenue	211.1	200
Operating income	90.1	89.5
Global Consumer Solutions | Operating Segments
Segment Reporting Information [Line Items]
Operating revenue	103.2	105.9
Operating income	$ 30.1	$ 30.8

SEGMENT INFORMATION - Total Ass

SEGMENT INFORMATION - Total Assets by Operating Segments (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Assets	$ 7,196.1	$ 7,233.4
Operating Segments | U.S. Information Solutions
Segment Reporting Information [Line Items]
Assets	1,579.7	1,587.3
Operating Segments | International
Segment Reporting Information [Line Items]
Assets	3,174.8	3,145.7
Operating Segments | Workforce Solutions
Segment Reporting Information [Line Items]
Assets	1,231.1	1,227.4
Operating Segments | Global Consumer Solutions
Segment Reporting Information [Line Items]
Assets	251.6	254
General Corporate
Segment Reporting Information [Line Items]
Assets	$ 958.9	$ 1,019