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Long-Term Employee Benefits (Schedule of a One-Percentage Point Change in Assumed Health Care Cost Trend Rates) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2016 USD ($)
General Discussion of Pension and Other Postretirement Benefits [Abstract] |
Effect of a 1-percentage point increase on total of service and interest cost | $ 0
Effect of a 1-percentage point decrease on total of service and interest cost | 0
Effect of a 1-percentage point increase on postretirement benefit obligation | 11
Effect of a 1-percentage point decrease on postretirement benefit obligation | $ (11)

X
- Definition Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (m) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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