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Hedging Activities (Effect on Consolidated Financial Statements) (Details) - Cash Flow Hedging [Member] - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Gain recognized in other comprehensive income (OCI) | $ 11 | $ 38 | $ (33)
Gain/(loss) reclassified from accumulated OCI into income (effective) | 12 | (13) | (34)
Sales [Member] |  |  |
Gain/(loss) reclassified from accumulated OCI into income (effective) |  | 1 | 4
Interest Rate Hedge [Member] |  |  |
Gain recognized in other comprehensive income (OCI) | 16 |  |
Interest Rate Hedge [Member] | Cost of Sales [Member] |  |  |
Gain/(loss) reclassified from accumulated OCI into income (effective) | 13 | (12) | (36)
Foreign Exchange Contracts [Member] |  |  |
Gain recognized in other comprehensive income (OCI) | (5) | 38 | (33)
Foreign Exchange Contracts [Member] | Other Expense [Member] |  |  |
Gain/(loss) reclassified from accumulated OCI into income (effective) | $ (1) | $ (2) | $ (2)

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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