Acquisitions and Divestitures (Divestitures) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Income Statement reclassified results of discontinued operations
Revenue	$ 0	$ 474	$ 268	$ 769
Expenses	(2)	417	312	774
Operating income (loss)	2	57	(44)	(5)
Interest expense (income), net	0	0	1	(1)
Income (loss) before taxes on income (loss)	2	57	(45)	(4)
(Benefit) provision for taxes on income (loss) 1	2	(17)	18	8
Income (loss) from discontinued operations, net of tax	4	40	(27)	4
Pre-tax gain on sale from discontinued operations	0	0	920	0
Provision for taxes on income	0	0	308	0
Gain on sale of discontinued operations, net of tax	0	0	612	0
Discontinued operations, net	4	40	585	4
Less: net (loss) income attributable to noncontrolling interests	0	(1)	1	0
Income from discontinued operations attributable to McGraw Hill Financial, Inc. common shareholders	4	39	586	4
Assets and liabilities reclassified as held for sale
Accounts receivable, net					333
Property and equipment, net					122
Goodwill					469
Other intangible assets, net					156
Inventories, net					235
Prepublication costs					304
Other assets					321
Assets held for sale					1,940
Accounts payable and accrued expenses					123
Unearned revenue					192
Other liabilities					349
Liabilities held for sale					$ 664