Acquisitions and Divestitures (Divestitures) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Components of income from discontinued operations
Revenue									$ 268	$ 2,062	$ 2,382
Expenses									310	2,287	2,035
Operating (loss) income									(42)	(225)	347
Interest expense (income), net									2	(2)	(3)
(Loss) income before taxes on (loss) income									(44)	(223)	350
(Benefit) provision for taxes on (loss) income									(18)	11	116
(Loss) income from discontinued operations, net of tax									(26)	(234)	234
Pre-tax gain on sale from discontinued operations									888	0	122
Provision for taxes on gain on sale									299	0	48
Gain on sale of discontinued operations, net of tax									589	0	74
Discontinued operations, net	(2)	(20)	4	581	(404)	165	40	(36)	563	(234)	308
Less: net (loss) income attributable to noncontrolling interests									(1)	5	4
Income (loss) from discontinued operations attributable to McGraw Hill Financial, Inc. common shareholders	(2)	(20)	4	582	(406)	162	39	(35)	564	(239)	304
Components of assets and liabilities classified as held for sale
Accounts receivable, net					333					333
Property and equipment, net					122					122
Goodwill					469					469
Other intangible assets, net					156					156
Inventories, net					235					235
Prepublication costs					304					304
Other assets					321					321
Assets held for sale					1,940					1,940
Accounts payable and accrued expenses					123					123
Unearned revenue					192					192
Other liabilities					349					349
Liabilities held for sale					$ 664					$ 664