星空传媒 Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details
Uncategorized
- Uncategorized Items - clf-20181231.xml

PENSION AND OTHER POSTRETIREMENT BENEFITS (Estimated Future Benefit Payments) (Details)

v3.10.0.1

PENSION AND OTHER POSTRETIREMENT BENEFITS (Estimated Future Benefit Payments) (Details) $ in Millions	Dec. 31, 2018 USD ($)
Pension Benefits [Member]	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听
2017	$ (70.4)
2018	(67.9)
2019	(67.5)
2020	(67.0)
2021	(67.9)
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	(309.7)
Gross Company Benefits [Member]	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听
2017	(18.0)
2018	(17.7)
2019	(17.2)
2020	(17.0)
2021	(16.9)
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	(82.2)
Less Medicare Subsidy [Member]	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听
2017	(0.8)
2018	(0.8)
2019	(0.9)
2020	(0.9)
2021	(1.0)
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	(5.4)
Net Company Payments [Member]	听
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	听
2017	(17.2)
2018	(16.9)
2019	(16.3)
2020	(16.1)
2021	(15.9)
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter	$ (76.8)

- Definition

Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ 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 (f)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

- Details

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

- Details

Name:	us-gaap_RetirementPlanNameAxis=clf_GrossCompanyBenefitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanNameAxis=clf_MedicarePartDSubsidyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanNameAxis=clf_NetCompanyPaymentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: