Other Comprehensive Earnings/Losses (Reclassifications) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||||
| Amounts reclassified to net earnings | $ 47 | $ 69 | $ 151 | $ 212 |
| SABMiller [Member] | ||||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||||
| Amounts reclassified to net earnings | 5 | 5 | 24 | 14 |
| Net loss [Member] | ||||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||||
| Amounts reclassified to net earnings | 50 | 72 | 162 | 222 |
| Prior service cost/credit [Member] | ||||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||||
| Amounts reclassified to net earnings | (8) | (8) | (35) | (24) |
| Benefit Plans [Member] | ||||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | ||||
| Amounts reclassified to net earnings | $ 42 | $ 64 | $ 127 | $ 198 |