Goodwill And Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill are as follows:

(In millions of dollars)	2016			2015
Balance as of January 1, as reported	$	7,889		$	7,241
Goodwill acquired	556			783
Other adjustments(a)	(76		)	(135		)
Balance at December 31,	$	8,369		$	7,889

(a) Primarily due to the impact of foreign exchange in both years.

Schedule of Finite-Lived Intangible Assets

The gross cost and accumulated amortization at December 31, 2016 and 2015 are as follows:

(In millions of dollars)	2016						2015
	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Client relationships	$	1,390	$	392	$	998	$	1,281	$	347	$	934
Other (a)	204		76		128		176		74		102
Amortized intangibles	$	1,594	$	468	$	1,126	$	1,457	$	421	$	1,036

(a) Primarily non-compete agreements, trade names and developed technology

Estimated Future Aggregate Amortization Expense

The estimated future aggregate amortization expense is as follows:

For the Years Ending December 31,
(In millions of dollars)
2017	$	148
2018	141
2019	134
2020	120
2021	107
Subsequent years	476
	$	1,126