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Assets Held for Sale (Narratives) (Details) $ in Millions | Dec. 31, 2017 USD ($)
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Notes to Consolidated Financial Statements [Abstract] |
Held for sale total expected consideration | $ 1,000
Held for sale expected consideration including cash | 950
Held for sale expected consideration including preferred equity notes of the Buyer | 53
Gain expected as a result of sale | 840
Proceeds of sale of IDE Technologies Ltd | 168
Capital gain recognized as a result of the IDE Technologies Ltd sale | $ 41

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