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INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Effective Income Tax Rate Reconciliation, Percent [Abstract]      
Federal statutory rate 35.00% 35.00% 35.00%
State income taxes, net of federal benefit 1.80% 1.70% 3.40%
Foreign income tax rate differential (3.60%) (4.60%) (0.30%)
Audit settlements (0.60%) (1.70%) (2.40%)
Effect of tax law changes 0.00% 0.40% 1.20%
Nondeductible legal and related expenses 0.00% 0.30% 18.30%
Basis difference in affiliates (0.10%) (0.00%) (2.50%)
Tax advantaged investments (2.40%) (1.80%) (3.60%)
Other, net (0.10%) 0.70% (0.10%)
Effective income tax rate 30.00% 30.00% 49.00%
DTA change in enacted tax rate   $ 101 $ 210