As a matter of fact 25% of our U.S. investment banking business comes out of our commercial bank. So it's a competitive advantage for both the investment bank - which gets a huge volume of business - and the commercial bank because the commercial bank can walk into a company and say, "Oh, if you need X, Y and Z in Japan or China, we can do that for you."

Our investment bank looks like it does because its customers like our expansive network and want to do equity, debt, M&A, custody, move money, deposit money, et cetera.

I think the Republicans have really thoughtful financial policies, and I'm more in the middle on taxation.

But in general, as countries get wealthier, there's going to be more savings, which means you're going to have intermediation. So part of it is just the huge growth in wealth, and part of it was globalization - these companies, these clients getting much bigger and much more global.

People need to understand: Businesses are going to make mistakes. They shouldn't be shot and hung every time. We should apologize for it. We should make up for it. My shareholders paid for it. No customer was hurt, which is critical to me. But I hurt my shareholders, and I wish I hadn't.

Dodd-Frank and independent actions of banks go a long way in terms of progress on capital, liquidity, transparency, "living wills" (plans for winding down a bank in the event of a collapse) and resolutions.

And if you're going to be a leader, you know what I ask myself? Would I want to work for you in this job? Would I let my children work for you? Would I give you this job if I wasn't there to provide oversight? If you went to run another company, would I, as an investor, invest in that company?