Taxes on Income (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Deferred tax assets:
Postretirement benefits	$ 201		$ 202
Employee compensation	123		128
Accrued expenses	105		99
Unearned revenue	60		58
Allowance for doubtful accounts	17		10
Loss carryforwards	25		8
Total deferred tax assets	531		505
Deferred tax liabilities:
Goodwill and intangible assets	379	[1]	131	[1]
Fixed assets	54		58
Other	(1)		(7)
Total deferred tax liabilities	434		196
Net deferred income tax asset before valuation allowance	97		309
Valuation allowance	(7)		(7)
Net deferred income tax asset	90		302
Reported as:
Current deferred tax assets	117		110
Current deferred tax liabilities	(7)		(2)
Non-current deferred tax assets	36		207
Non-current deferred tax liabilities	(56)		(13)
Net deferred income tax asset	$ 90		$ 302

[1] See Note 3 – Acquisitions and Divestitures for further discussion regarding the impact related to the S&P Dow Jones Indices LLC.