XML 114 R72.htm IDEA: XBRL DOCUMENT v3.19.1
Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Income Tax Disclosure [Abstract]    
Tax provision at U.S. federal statutory rate $ 163 $ 109
Tax-exempt interest (15) (17)
Executive compensation 4 4
Stock-based compensation 3 2
Tax Reform 0 3
Other (4) 0
Provision for income taxes $ 145 $ 91