Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Components of fixed assets

The components of fixed assets are as follows:

December 31,
(In millions of dollars)	2016			2015
Furniture and equipment	$	1,113		$	1,133
Land and buildings	389			396
Leasehold and building improvements	906			865
	2,408			2,394
Less-accumulated depreciation and amortization	(1,683		)	(1,621		)
	$	725		$	773

Diluted earnings per share for continuing operations

Reconciliations of the applicable components used to calculate basic and diluted EPS - Continuing Operations are presented below. The reconciling items related to the EPS calculation are the same for both basic and diluted EPS.

Basic and Diluted EPS Calculation - Continuing Operations
(In millions, except per share figures)	2016		2015		2014
Net income from continuing operations	$	1,795	$	1,636	$	1,471
Less: Net income attributable to non-controlling interests	27		37		32
	$	1,768	$	1,599	$	1,439
Basic weighted average common shares outstanding	519		531		545
Dilutive effect of potentially issuable common shares	5		5		8
Diluted weighted average common shares outstanding	524		536		553
Average stock price used to calculate common stock equivalents	$	63.51	$	56.27	$	51.15