Non-U.S. Activities

We define our non-U.S. activities as those revenue-producing business activities that arise from clients which are generally serviced or managed outside the U.S. Due to the integrated nature of our business, precise segregation of our U.S. and non-U.S. activities is not possible.

Subjective estimates, assumptions and other judgments are applied to quantify the financial results and assets related to our non-U.S. activities, including our application of funds transfer pricing, our asset-and-liability management policies and our allocation of certain indirect corporate expenses. Management periodically reviews and updates its processes for quantifying the financial results and assets related to our non-U.S. activities.

Non-U.S. revenue in 2017, 2016 and 2015 included $1.05 billion, $1.05 billion and $938 million, respectively, in the U.K.

The following table presents our U.S. and non-U.S. financial results for the periods indicated:



	2017						2016						2015
(In millions)	Non-U.S.		U.S.		Total		Non-U.S.		U.S.		Total		Non-U.S.		U.S.		Total
Total revenue	$	4,734	$	6,436	$	11,170	$	4,419	$	5,788	$	10,207	$	4,428	$	5,932	$	10,360
Income before income taxes	1,230		1,669		2,899		1,047		1,073		2,120		1,193		1,105		2,298

Non-U.S. assets were $82.1 billion and $79.1 billion as of December 31, 2017 and 2016, respectively.