XML 95 R82.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Condensed Consolidating Financial Statements (Narrative) (Details) - USD ($) $ in Millions | Aug. 18, 2015 | Jun. 30, 2015 | May. 26, 2015 | Dec. 31, 2014
--- | --- | --- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Ownership interest of subsidiary |  | 100.00% |  | 100.00%
Senior Notes [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued | $ 2,000 |  |  |
Senior Notes [Member] | Subsequent Event [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued | 2,000 |  |  |
Senior Notes [Member] | 4.0% Senior Notes due in 2025 [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued |  |  | $ 700 |
Interest rate |  |  | 4.00% |
Senior Notes [Member] | 2.5% Senior Notes due in 2018 [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued | $ 400 |  |  |
Interest rate | 2.50% |  |  |
Senior Notes [Member] | 2.5% Senior Notes due in 2018 [Member] | Subsequent Event [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued | $ 400 |  |  |
Interest rate | 2.50% |  |  |
Senior Notes [Member] | 3.3% Senior Notes due in 2020 [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued | $ 700 |  |  |
Interest rate | 3.30% |  |  |
Senior Notes [Member] | 3.3% Senior Notes due in 2020 [Member] | Subsequent Event [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued | $ 700 |  |  |
Interest rate | 3.30% |  |  |
Senior Notes [Member] | 4.4% Senior Notes due in 2026 [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued | $ 900 |  |  |
Interest rate | 4.40% |  |  |
Senior Notes [Member] | 4.4% Senior Notes due in 2026 [Member] | Subsequent Event [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Debt issued | $ 900 |  |  |
Interest rate | 4.40% |  |  |

X
- Definition Ownership Interest of Subsidiary Owned by Parent Company + References No definition available. + Details
Name: | mhfi_OwnershipInterestofSubsidiaryOwnedbyParentCompany
Namespace Prefix: | mhfi_
Data Type: | num:percentItemType
Balance Type: | na
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_CondensedFinancialStatementsCaptionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mhfi_A4.0SeniorNotesduein2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mhfi_A2.5SeniorNotesduein2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mhfi_A3.3SeniorNotesduein2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mhfi_A4.4SeniorNotesduein2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |