Goodwill and other intangible assets Goodwill and other intangible assets (Tables)

9 Months Ended

Sep. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

The following table presents a roll-forward of Goodwill by segment for the nine months ended September 30, 2016:



(in millions of U.S. dollars)	North America Commercial P&C Insurance		North America Personal P&C Insurance		North America Agricultural Insurance		Overseas General Insurance		Global Reinsurance		Life Insurance		Chubb Consolidated
Balance at December 31, 2015	$	1,203	$	196	$	134	$	2,078	$	365	$	820	$	4,796
Acquisition of Chubb Corp	5,711		2,025		—		2,794		—		—		10,530
Foreign exchange revaluation	43		13		—		98		—		1		155
Balance at September 30, 2016	$	6,957	$	2,234	$	134	$	4,970	$	365	$	821	$	15,481

Intangible assets acquired as part of Chubb Corp acquisition

The preliminary purchase price allocation to intangible assets recorded in connection with the Chubb Corp acquisition and their related useful lives are as follows:



(in millions of U.S. dollars)	Preliminary purchase price allocation		Estimated useful life
Definite life
Unearned premium reserves (UPR) intangible asset	$	1,550	1 year
Agency distribution relationships and renewal rights	3,150		24 years
Internally developed technology	95		3 years
Indefinite life
Trademarks	2,800		Indefinite
Licenses	50		Indefinite
Syndicate capacity	10		Indefinite
Total identified intangible assets	$	7,655

Intangible Asset Amortization for the Next 5 Years [Table Text Block]

The following table presents, as of September 30, 2016, the expected estimated pre-tax amortization expense (benefit), at current foreign currency exchange rates, for the fourth quarter of 2016 and the next five years, related to purchased intangibles as well as the fair value adjustment to Unpaid losses and loss expenses described above:



	Associated with the Chubb Corp Acquisition
For the Year Ending December 31 (in millions of U.S. dollars)	Agency distribution relationships and renewal rights		Internally developed technology		Fair value adjustment to Unpaid losses and loss expenses			Total			Other intangible assets		Total Amortization of purchased intangibles
Fourth quarter of 2016	$	33	$	8	$	(61	)	$	(20	)	$	23	$	3
2017	296		32		(161		)	167			85		252
2018	324		32		(102		)	254			73		327
2019	281		—		(62		)	219			66		285
2020	240		—		(36		)	204			59		263
2021	217		—		(20		)	197			53		250
Total	$	1,391	$	72	$	(442	)	$	1,021		$	359	$	1,380