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Asset Impairment, Exit and Implementation Costs (Pre-tax Asset Impairment, Exit and Implementation Costs ) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |
Asset impairment and exit costs | $ 40 | $ 2
Plus amounts included in net periodic benefit income, excluding service cost, Asset Impairment and Exit Costs | 12 | 0
Total, Asset Impairment and Exit Costs | 52 | 2
Implementation Costs | 9 | 1
Plus amounts included in net period benefit income, excluding service cost, Implementation Costs | 0 | 0
Total, Implementation Costs | 9 | 1
Restructuring Charges | 49 | 3
Plus amounts included in net periodic benefit income, excluding service cost, Total | 12 | 0
Total restructuring | 61 | 3
Operating Segments [Member] | Smokeable Products [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Asset impairment and exit costs | 36 | 0
Implementation Costs | 8 | 1
Restructuring Charges | 44 | 1
Operating Segments [Member] | Smokeless Products [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Asset impairment and exit costs | 8 | 2
Implementation Costs | 1 | 0
Restructuring Charges | 9 | 2
Operating Segments [Member] | All Other [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Asset impairment and exit costs | (5) | 0
Implementation Costs | 0 | 0
Restructuring Charges | (5) | 0
Corporate, Non-Segment [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Asset impairment and exit costs | 1 | 0
Implementation Costs | 0 | 0
Restructuring Charges | $ 1 | $ 0

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