Goodwill and intangible assets - Goodwill by Business Segment (Detail) - USD ($) $ in Millions |
3 Months Ended | |
---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
|
Goodwill [Roll Forward] | ||
Beginning balance | $ 17,316 | $ 17,618 |
Foreign currency translation | 39 | (14) |
Ending balance | 17,355 | 17,604 |
Investment Management | ||
Goodwill [Roll Forward] | ||
Beginning balance | 9,000 | 9,207 |
Foreign currency translation | 21 | (32) |
Ending balance | 9,021 | 9,175 |
Investment Services | ||
Goodwill [Roll Forward] | ||
Beginning balance | 8,269 | 8,366 |
Foreign currency translation | 18 | 18 |
Ending balance | 8,287 | 8,384 |
Other | ||
Goodwill [Roll Forward] | ||
Beginning balance | 47 | 45 |
Foreign currency translation | 0 | 0 |
Ending balance | $ 47 | $ 45 |