Annual report pursuant to Section 13 and 15(d)

BENEFIT PLANS - Fair Value of Plan Assets (Details)

v3.10.0.1
BENEFIT PLANS - Fair Value of Plan Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Summary of plan assets investments    
Fair value of plan assets $ 828 $ 903
Fair value of plan assets, Percentage 100.00% 100.00%
Mutual funds-money market    
Summary of plan assets investments    
Fair value of plan assets $ 4 $ 14
Fair value of plan assets, Percentage 0.00% 2.00%
U.S. Treasury securities    
Summary of plan assets investments    
Fair value of plan assets $ 4 $ 5
Fair value of plan assets, Percentage 1.00% 1.00%
Corporate obligations    
Summary of plan assets investments    
Fair value of plan assets $ 272 $ 293
Fair value of plan assets, Percentage 33.00% 32.00%
U.S. Government obligations    
Summary of plan assets investments    
Fair value of plan assets $ 298 $ 216
Fair value of plan assets, Percentage 36.00% 24.00%
U.S. Government agencies    
Summary of plan assets investments    
Fair value of plan assets $ 22 $ 23
Fair value of plan assets, Percentage 3.00% 3.00%
Mutual funds-equities    
Summary of plan assets investments    
Fair value of plan assets $ 64 $ 118
Fair value of plan assets, Percentage 8.00% 13.00%
Common stock    
Summary of plan assets investments    
Fair value of plan assets $ 98 $ 158
Fair value of plan assets, Percentage 12.00% 17.00%
Preferred stock    
Summary of plan assets investments    
Fair value of plan assets $ 5 $ 5
Fair value of plan assets, Percentage 1.00% 1.00%
Exchange traded funds    
Summary of plan assets investments    
Fair value of plan assets $ 45 $ 58
Fair value of plan assets, Percentage 5.00% 6.00%
Limited Partnerships    
Summary of plan assets investments    
Fair value of plan assets $ 16 $ 13
Fair value of plan assets, Percentage 1.00% 1.00%