XML 78 R60.htm IDEA: XBRL DOCUMENT v3.10.0.1
Significant Accounting Policies - New Accounting Pronouncements (Details) - USD ($)
$ in Millions
Jan. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Jan. 01, 2018
Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle          
Retained earnings     $ 40,636   $ 39,115
ASU 2016-16 Intra-Entity Transfers of Assets Other Than Inventory | Maximum          
New Accounting Pronouncements or Change in Accounting Principle          
Retained earnings       $ (2)  
ASU 2018-02 Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income | Forecast          
New Accounting Pronouncements or Change in Accounting Principle          
Cumulative effect of new accounting principle in period of adoption   $ 900      
ASU 2016-02 Leases | Forecast          
New Accounting Pronouncements or Change in Accounting Principle          
Lease assets $ 800        
Lease liabilities $ 800        
Difference between Revenue Guidance in Effect before and after Topic 606 | Maximum          
New Accounting Pronouncements or Change in Accounting Principle          
Retained earnings       $ 2