Taxes on Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income before taxes domestic and foreign operations
Domestic operations	$ 2,585	$ 1,266	$ (423)
Foreign operations	603	549	477
Income from continuing operations before taxes on income	3,188	1,815	54
Federal:
Current	641	90	285
Deferred	79	276	(213)
Total federal	720	366	72
Foreign:
Current	133	111	135
Deferred	(4)	(1)	1
Total foreign	129	110	136
State and local:
Current	99	34	62
Deferred	12	37	(25)
Total state and local	111	71	37
Total provision for taxes for continuing operations	960	547	245
Provision for discontinued operations	0	0	140
Total provision for taxes	$ 960	$ 547	$ 385
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%	0.00%	524.10%
State and local income taxes	2.70%	2.60%	64.20%
Divestitures	(4.30%)	0.00%	0.00%
Foreign operations	(2.00%)	(3.20%)	(79.60%)
S&P Dow Jones Indices LLC joint venture	(1.20%)	(2.00%)	(60.20%)
Tax credits and incentives	(1.60%)	(2.90%)	(91.50%)
Other, net	1.50%	0.60%	61.70%
Effective income tax rate for continuing operations	30.10%	30.10%	453.70%