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Financial Instruments - Derivative Financial Instruments and Hedging Activities - Footnotes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 28, 2020 | Jun. 30, 2019 | Jun. 28, 2020 | Jun. 30, 2019
Derivative [Line Items] |  |  |  |  |
Amount of (Gains)/Losses Reclassified from OCI into OID and COS | [1],[2] | $ (186) | $ (81) | $ (167) | $ (343)
Pre-tax gain expected to be reclassified within the next 12 months |  | 102 |  | 102 |
Unsecured Debt [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Long-term debt |  | 1,800 |  | 1,800 |
Foreign currency long-term debt [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Long-term debt |  | 2,000 |  | 2,000 |
Designated as Hedging Instrument [Member] | Cost of sales [Member] | Foreign exchange contracts [Member] |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Amount of (Gains)/Losses Reclassified from OCI into OID and COS |  | $ (80) | $ (59) | $ (150) | $ (103)
[1] | Amounts may not add due to rounding.
[2] | Reclassified into Other (income)/deductions—net and Cost of sales in the condensed consolidated statements of income. For additional information on amounts reclassified into Other (income)/deductions—net and Cost of sales, see Note 7E. Financial Instruments: Derivative Financial Instruments and Hedging Activities.

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