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Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Reconciliation of Changes in Carrying Amounts of Goodwill (Details) $ in Millions | 9 Months Ended
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Aug. 31, 2018 USD ($)
Goodwill [Roll Forward] |
Beginning balance | $ 2,967
Foreign currency translation adjustment | (18)
Ending balance | 2,949
NAA Segment |
Goodwill [Roll Forward] |
Beginning balance | 1,898
Foreign currency translation adjustment | 0
Ending balance | 1,898
EA Segment |
Goodwill [Roll Forward] |
Beginning balance | 1,069
Foreign currency translation adjustment | (18)
Ending balance | $ 1,050

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