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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 | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | $ 4 | $ (2) | $ 107 | $ 35
Asset Write-off and Accelerated Depreciation Charges | 1 | 1 | 1 | 2
Current Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 3 | 1 | 103 | 32
Current Year Plans | Associate Severance and Other Related Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 0 | 1 | 98 | 32
Current Year Plans | Benefit Plan Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 0 | 0 | 1 | 0
Current Year Plans | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 3 | 0 | 4 | 0
Prior Year Plans |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 1 | (3) | 4 | 3
Prior Year Plans | Associate Severance and Other Related Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | 0 | (6) | 0 | (8)
Prior Year Plans | Benefit Plan Termination Benefits |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | (1) | 0 | (1) | 0
Prior Year Plans | Other Exit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalizations | $ 2 | $ 3 | $ 5 | $ 11

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