Taxes on Earnings from Continuing Operations (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | 15 Months Ended | ||
|---|---|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2018 |
|
| Taxes on Earnings | |||||
| U.S. Federal corporate tax rate (as a percent) | 21.00% | 21.00% | 35.00% | ||
| Net tax expense for the impact of Tax cuts and jobs act | $ 1,460 | $ 130 | $ 1,590 | ||
| Provisional transition tax | 2,890 | $ 86 | 120 | $ 3,010 | |
| Net expense (benefit) on remeasurement of deferred tax assets and liabilities | (1,420) | 10 | |||
| Net benefit on remeasurement of deferred tax assets and liabilities | 86 | ||||
| Cumulative net tax expense for the impact of Tax cuts and jobs act | 1,500 | ||||
| Net benefit from Tax cuts and jobs act, Other impacts | $ 10 | ||||
| Transition tax obligation | $ 1,330 | ||||
| Transition tax obligation payment period | 7 years | ||||
| Tax expense related to settlement of tax positions | $ 68 | $ 98 | |||
| AMO | Dispositions held for sale | |||||
| Taxes on Earnings | |||||
| Tax expense related to settlement of tax positions | $ (435) | ||||