Supplemental Cash Flow - Noncash Investing and Financing Activities (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Interest paid
Interest	$ 710	$ 451
Income taxes paid, net
Income taxes	318	120
Transfers:
Portfolio loans to loans held for sale	192	171
Loans held for sale to portfolio loans	27	67
Portfolio loans to OREO	18	20
Additions to right of use assets under operating leases	15	0
Right-of-use assets recognized at adoption of ASU 2016-02	$ 509	$ 0

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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