Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Assumed Health Care Cost Trend Rates) (Details)

v3.10.0.1
PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Assumed Health Care Cost Trend Rates) (Details)
Dec. 31, 2018
Dec. 31, 2017
Postemployment Benefits [Abstract]    
Health care cost trend rate assumed for next year 6.75% 7.00%
Ultimate health care cost trend rate 5.00% 5.00%