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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 | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs |  |  | $ 395 | $ 25
Plus amounts included in net period benefit income, excluding service cost, Implementation Costs |  |  | 0 | 0
Implementation Costs | $ 1 | $ 4 | 395 | 25
Total restructuring |  |  | 395 | 99
Plus amounts included in net periodic benefit income, excluding service cost, Total |  |  | 0 | 12
Restructuring Charges | 1 | 5 | 395 | 111
Total, Asset Impairment and Exit Costs | 0 | 1 | 0 | 74
Plus amounts included in net periodic benefit income, excluding service cost, Asset Impairment and Exit Costs |  |  |  | 12
Asset Impairment and Exit Costs |  | 1 |  | 86
Operating Segments [Member] | Smokeable Products Segment [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs | 0 | 4 | 0 | 29
Total restructuring | 0 | 4 | 0 | 79
Total, Asset Impairment and Exit Costs |  | 0 |  | 50
Operating Segments [Member] | Oral Tobacco Segment [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs | 0 | 0 | 0 | 3
Total restructuring | 0 | 1 | 0 | 12
Total, Asset Impairment and Exit Costs |  | 1 |  | 9
Operating Segments [Member] | Wine Segment [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs | 1 | 0 | 395 | 0
Total restructuring | 1 | 0 | 395 | 0
Total, Asset Impairment and Exit Costs |  | 0 |  | 0
Operating Segments [Member] | All Other [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs |  |  | 0 | (7)
Total restructuring |  |  | 0 | 7
Total, Asset Impairment and Exit Costs |  |  |  | 14
Corporate, Non-Segment [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs |  |  | 0 | 0
Total restructuring |  |  | 0 | 1
Total, Asset Impairment and Exit Costs |  |  |  | 1
Asset Impairment and Exit Costs | $ 0 | 0 | $ 0 | 1
Cost of Sales [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs |  | 1 |  | (1)
Marketing Administration And Research Costs [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total, Implementation Costs |  | $ 3 |  | $ 26

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