Taxes on Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income before taxes domestic and foreign operations
Domestic operations	$ 1,266	$ (423)	$ 821
Foreign operations	549	477	478
Total continuing income before taxes	1,815	54	1,299
Federal:
Current	90	285	194
Deferred	276	(213)	51
Total federal	366	72	245
Foreign:
Current	111	135	152
Deferred	(1)	1	(19)
Total foreign	110	136	133
State and local:
Current	34	62	37
Deferred	37	(25)	10
Total state and local	71	37	47
Total provision for taxes for continuing operations	547	245	425
Provision for discontinued operations	0	140	299
Total provision for taxes	$ 547	$ 385	$ 724
Reconciliation of federal statutory income tax rate
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
Legal and regulatory settlements	0.00%	524.10%	0.00%
State and local income taxes	2.60%	64.20%	2.80%
Foreign operations	(3.20%)	(79.60%)	(3.90%)
S&P Dow Jones Indices LLC joint venture	(2.00%)	(60.20%)	(2.00%)
Tax credits and incentives	(2.90%)	(91.50%)	(2.10%)
Other, net	0.60%	61.70%	2.90%
Effective income tax rate for continuing operations	30.10%	453.70%	32.70%