Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Amounts attributable to McGraw Hill Financial, Inc. common shareholders:
Income from continuing operations	$ 292	$ 250	$ 540	$ 403
Income from discontinued operations	0	4	0	586
Net income	$ 292	$ 254	$ 540	$ 989
Basic weighted-average number of common shares outstanding (in shares)	271.5	274.3	271.7	277.4
Effect of stock options and other dilutive securities (in shares)	4.6	4.0	5.0	3.9
Diluted weighted-average number of common shares outstanding (in shares)	276.1	278.3	276.7	281.3
Income from continuing operations:
Basic (in dollars per share)	$ 1.08	$ 0.91	$ 1.99	$ 1.45
Diluted (in dollars per share)	$ 1.06	$ 0.90	$ 1.95	$ 1.43
Income from discontinued operations:
Basic (in dollars per share)	$ 0.00	$ 0.01	$ 0.00	$ 2.11
Diluted (in dollars per share)	$ 0.00	$ 0.01	$ 0.00	$ 2.08
Net income:
Basic (in dollars per share)	$ 1.08	$ 0.93	$ 1.99	$ 3.57
Diluted (in dollars per share)	$ 1.06	$ 0.91	$ 1.95	$ 3.52
Restricted performance shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares not included in the computation of diluted earnings per share (in shares)			1.4	2.3
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares not included in the computation of diluted earnings per share (in shares)		2.7		2.8