Annual report pursuant to Section 13 and 15(d)

INCOME TAXES - Provision (Benefit) for Income Taxes (Details)

v3.8.0.1
INCOME TAXES - Provision (Benefit) for Income Taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]                      
Effective Income Tax Rate Reconciliation, Impact om TCJA, Amount                 $ (123) $ 0 $ 0
Current tax provision (benefit)                      
Federal                 41 40 146
State                 (1) 3 6
Total current tax provision (benefit)                 40 43 152
Deferred tax provision (benefit)                      
Federal                 151 161 67
State                 17 4 2
Total deferred tax provision (benefit)                 168 165 69
Provision (benefit) for income taxes $ (20) $ 90 $ 79 $ 59 $ 74 $ 25 $ 54 $ 55 $ 208 $ 208 $ 221