XML 89 R74.htm IDEA: XBRL DOCUMENT
v3.10.0.1

BENEFIT PLANS - Benefit Costs Included in Accumulated Other Comprehensive Loss that have not yet Recognized in Net Periodic Pension Cost (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Pension Benefits |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Prior service cost, net of accumulated taxes of $1.9 and $2.0 in 2018 and 2017, respectively, for pension benefits and $(0.3) and $(0.5) in 2018 and 2017, respectively, for other benefits | $ 5.9 | $ 6.3
Net actuarial loss, net of accumulated taxes of $88.7 and $91.0 in 2018 and 2017, respectively, for pension benefits and $2.8 and $3.1 in 2018 and 2017, respectively, for other benefits | 283.4 | 243.2
Impact of Tax Cuts and Jobs Act of 2017 | 0.0 | 48.7
Accumulated other comprehensive loss | 289.3 | 298.2
Prior service cost, accumulated taxes | 1.9 | 2.0
Net actuarial loss, accumulated taxes | 88.7 | 91.0
Other Benefits |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Prior service cost, net of accumulated taxes of $1.9 and $2.0 in 2018 and 2017, respectively, for pension benefits and $(0.3) and $(0.5) in 2018 and 2017, respectively, for other benefits | (0.9) | (1.8)
Net actuarial loss, net of accumulated taxes of $88.7 and $91.0 in 2018 and 2017, respectively, for pension benefits and $2.8 and $3.1 in 2018 and 2017, respectively, for other benefits | 8.7 | 9.8
Impact of Tax Cuts and Jobs Act of 2017 | 0.0 | 1.3
Accumulated other comprehensive loss | 7.8 | 9.3
Prior service cost, accumulated taxes | (0.3) | (0.5)
Net actuarial loss, accumulated taxes | $ 2.8 | $ 3.1

X
- Definition Accumulated Other Comprehensive Income (Loss) Defined Benefit Pension and Other Postretirement Plans Net Actuarial Gain (Loss) Net of Tax + References No definition available. + Details
Name: | efx_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetActuarialGainLossNetOfTax
Namespace Prefix: | efx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Accumulated Other Comprehensive Income (Loss), Defined Benefit Pension and Other Postretirement Plans, Tax Cuts And Jobs Act Of 2017, Net Of Tax + References No definition available. + Details
Name: | efx_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionandOtherPostretirementPlansTaxCutsAndJobsActOf2017NetOfTax
Namespace Prefix: | efx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Tax to related to cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost. + References No definition available. + Details
Name: | efx_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditTaxPortion
Namespace Prefix: | efx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Net Actuarial Loss, Accumulated Taxes + References No definition available. + Details
Name: | efx_NetActuarialLossAccumulatedTaxes
Namespace Prefix: | efx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669646-108580 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
Name: | us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |