XML 143 R126.htm IDEA: XBRL DOCUMENT v3.19.1
Note 20 - Changes in the Company's Benefit Obligation and Funded Status (Details) - Other Postretirement Benefits Plan [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Changes in the Company's Benefit Obligation and Funded Status [Line Items]    
Projected benefit obligation at beginning of period $ 71 $ 72
Interest cost 2 2
Plan participants’ contributions 1 1
Actuarial gain (6) (1)
Benefit payments (4) (4)
Currency adjustments   1
Projected benefit obligation at end of period 64 71
Underfunded status at end of period $ (64) $ (71)