v3.19.3.a.u2
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)