Annual report pursuant to Section 13 and 15(d)

Income Taxes - Effective Income Tax Rate, Tax Rate Reconciliation (Details)

v3.10.0.1
Income Taxes - Effective Income Tax Rate, Tax Rate Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]      
Tax cuts and jobs act of 2017 transition tax period 8 years    
Computed expected tax benefit (expense) $ (219) $ (289) $ (497)
State and local income taxes, net of federal income taxes 18 (37) (46)
Foreign income taxes, net of federal income taxes 22 88  
Dividends received deductions (2) 38 11
Taxable dividends not recognized for book purposes (25) (45) (11)
Federal tax credits 30 22 67
Change in valuation allowance affecting tax expense (62) 212 (1)
Change in tax rate due to Tax Act (8) 929  
Settlements with tax authorities 43 253  
Deductible stock-based compensation 38 40 1
Income Tax Reserves   (22)  
Non-Deductible Non-Taxable Interest   (60)  
Write-off of Tax attributes   (42)  
Other, net (11) (24) (19)
Income tax (expense) benefit $ (176) $ 1,063 $ (495)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 35.00% 35.00%