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Restructuring (Details) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) position | Dec. 31, 2014 USD ($) Positions | Dec. 31, 2014 USD ($) | Dec. 31, 2014 USD ($) position | Dec. 31, 2013 USD ($) Positions
Restructuring Plan, 2015 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Workforce reduction, positions | position | 260 |  |  |  |
Restructuring charges paid | $ 2 |  |  |  |
Initial Charge Recorded | 30 |  |  |  |
Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Workforce reduction, positions |  | 590 |  | 590 |
Restructuring charges paid | 37 |  | $ 9 |  |
Initial Charge Recorded |  |  | 86 |  |
Ending Reserve Balance |  | $ 78 | 78 | $ 78 |
Restructuring Plan, 2013 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Workforce reduction, positions | Positions |  |  |  |  | 520
Restructuring charges paid |  |  | 32 |  | $ 10
Initial Charge Recorded |  |  | 49 |  | 49
Ending Reserve Balance |  |  |  |  | 7
Restructuring Plan, 2012 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Reserve accrual adjustment |  |  | 7 |  |
S&P Ratings | Restructuring Plan, 2015 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 11 |  |  |  |
Ending Reserve Balance | 11 |  |  |  |
S&P Ratings | Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 45 |  |  |  |
Ending Reserve Balance | 21 |  |  |  |
S&P Ratings [Member] | Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded |  |  | 45 |  |
Ending Reserve Balance |  | 42 | 42 | 42 |
S&P Ratings [Member] | Restructuring Plan, 2013 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded |  |  |  |  | 13
Ending Reserve Balance |  |  |  |  | 2
S&P Capital IQ [Member] | Restructuring Plan, 2015 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 13 |  |  |  |
Ending Reserve Balance | 12 |  |  |  |
S&P Capital IQ [Member] | Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 9 |  | 9 |  |
Ending Reserve Balance | 3 | 7 | 7 | 7 |
S&P Capital IQ [Member] | Restructuring Plan, 2013 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded |  |  |  |  | 10
Ending Reserve Balance |  |  |  |  | 1
C&C [Member] | Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded |  |  | 16 |  |
Ending Reserve Balance |  | 14 | 14 | 14 |
C&C [Member] | Restructuring Plan, 2013 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded |  |  |  |  | 10
Ending Reserve Balance |  |  |  |  | 2
C&C [Member] | Restructuring Plan, 2015 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 3 |  |  |  |
Ending Reserve Balance | 2 |  |  |  |
C&C [Member] | Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 16 |  |  |  |
Ending Reserve Balance | 6 |  |  |  |
C&C [Member] | Restructuring Plan, 2014 [Member] | McGraw Hill Construction [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 3 |  |  |  |
Ending Reserve Balance | 1 |  |  |  |
Corporate [Member] | Restructuring Plan, 2015 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 3 |  |  |  |
Ending Reserve Balance | 3 |  |  |  |
Corporate [Member] | Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 16 |  | 16 |  |
Ending Reserve Balance | 11 | 15 | 15 | 15 |
Corporate [Member] | Restructuring Plan, 2013 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded |  |  |  |  | 16
Ending Reserve Balance |  |  |  |  | 2
McGraw Hill Construction [Member] | Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded |  |  | 3 |  |
Ending Reserve Balance |  | 1 | 1 | 1 |
McGraw Hill Construction [Member] | Restructuring Plan, 2013 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded |  |  |  |  | 1
Ending Reserve Balance |  |  |  |  | $ 1
Total operating segments [Member] | Restructuring Plan, 2015 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 30 |  |  |  |
Ending Reserve Balance | 28 |  |  |  |
Total operating segments [Member] | Restructuring Plan, 2014 [Member] |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Initial Charge Recorded | 86 |  |  |  |
Ending Reserve Balance | $ 41 | $ 78 | $ 78 | $ 78 |

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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