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Other Comprehensive Income (Loss) (Components Of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jul. 01, 2017 | Jun. 30, 2018 | Jul. 01, 2017
Other Comprehensive Income Loss [Line Items] |  |  |  |
Total Other Comprehensive Income (Loss), Before Tax | $ (45) | $ (5) | $ (40) | $ (12)
Total Other Comprehensive Income (Loss), Tax | 7 | 4 | 6 | 5
Total Other Comprehensive Income (Loss), Net of Taxes | (38) | (1) | (34) | (7)
Derivatives accounted for as cash flow hedges: |  |  |  |
Other Comprehensive Income Loss [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Before Reclassifications, Before Tax | (13) | (2) | (13) | (2)
Other Comprehensive Income (Loss), Before Reclassifications, Tax | 4 | 2 | 4 | 2
Other Comprehensive Income (Loss), Before Reclassifications, Net of Tax | (9) | 0 | (9) | 0
Derivatives accounted for as cash flow hedges: | Interest Expense [Member] |  |  |  |
Other Comprehensive Income Loss [Line Items] |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Before Tax | 0 | 0 | 0 | 0
Reclassification from AOCI, Current Period, Tax | 0 | 0 | 0 | 0
Reclassification from Accumulated Other Comprehensive Income, Net of Tax | 0 | 0 | 0 | 0
Derivatives accounted for as cash flow hedges: | Cost of Sales |  |  |  |
Other Comprehensive Income Loss [Line Items] |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Before Tax | 0 | 0 | 3 | 1
Reclassification from AOCI, Current Period, Tax | 0 | 0 | (1) | (1)
Reclassification from Accumulated Other Comprehensive Income, Net of Tax | 0 | 0 | 2 | 0
Investments: |  |  |  |
Other Comprehensive Income Loss [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Before Reclassifications, Before Tax | (1) | (1) | (1) | (1)
Other Comprehensive Income (Loss), Before Reclassifications, Tax | 0 | 0 | 0 | 0
Other Comprehensive Income (Loss), Before Reclassifications, Net of Tax | (1) | (1) | (1) | (1)
Currency translation: |  |  |  |
Other Comprehensive Income Loss [Line Items] |  |  |  |
Other Comprehensive Income (Loss), Before Reclassifications, Before Tax | (33) | 3 | (27) | (2)
Other Comprehensive Income (Loss), Before Reclassifications, Tax | 1 | 0 | 1 | 0
Other Comprehensive Income (Loss), Before Reclassifications, Net of Tax | (32) | 3 | (26) | (2)
Currency translation: | Cost of Sales |  |  |  |
Other Comprehensive Income Loss [Line Items] |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Before Tax | 7 | 0 | 7 | 0
Reclassification from AOCI, Current Period, Tax | 0 | 0 | 0 | 0
Reclassification from Accumulated Other Comprehensive Income, Net of Tax | 7 | 0 | 7 | 0
Postretirement benefits |  |  |  |
Other Comprehensive Income Loss [Line Items] |  |  |  |
Total Other Comprehensive Income (Loss), Before Tax | (5) | (5) | (9) | (8)
Total Other Comprehensive Income (Loss), Tax | 2 | 2 | 2 | 4
Total Other Comprehensive Income (Loss), Net of Taxes | $ (3) | $ (3) | $ (7) | $ (4)

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