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Costs Associated with Rationalization Programs - Net Rationalization Charges Included in Income Before Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | $ 46 | $ 135 | $ 102 | $ 194
Asset Write-off and Accelerated Depreciation Charges | 10 | 3 | 39 | 10
Current Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 26 | 128 | 52 | 171
Current Year Plans | Associate Severance and Other Related Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 26 | 128 | 51 | 171
Current Year Plans | Other Exit and Non-Cancelable Lease Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 0 | 0 | 1 | 0
Prior Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 20 | 7 | 50 | 23
Prior Year Plans | Associate Severance and Other Related Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | (5) | 0 | 12 | 10
Prior Year Plans | Benefit Plan Curtailments and Settlements |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 13 | 1 | 14 | 0
Prior Year Plans | Other Exit and Non-Cancelable Lease Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | $ 12 | $ 6 | $ 24 | $ 13

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