v3.20.2
Changes in Equity (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance $ 31,387 $ 32,981 $ 35,050 $ 32,064
Net income (loss) 278 1,597 (1,433) 3,443
Other Comprehensive Income (Loss), Net of Tax 320 87 (468) 276
Dividends paid (455) (346) (913) (696)
Repurchase of company common stock   (1,250) (726) (2,002)
Distributions to noncontrolling interests and other (6) (43) (32) (60)
Disposition (84)   (84)  
Distributed under benefit plans 52 45 96 43
Change in Accounting Principle [1]       0
Other (1) (3) (3) (6)
Ending Balance 31,493 33,074 31,493 33,074
Par Value - Common Stock [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance 18 18 18 18
Ending Balance 18 18 18 18
Capital in excess of par [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance 47,027 46,877 46,983 46,879
Distributed under benefit plans 52 45 96 43
Ending Balance 47,079 46,922 47,079 46,922
Treasury Stock [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance (47,130) (43,656) (46,405) (42,905)
Repurchase of company common stock   (1,250) (726) (2,002)
Other     (1) (1)
Ending Balance (47,130) (44,906) (47,130) (44,906)
Accumulated Other Comprehensive Income (Loss) [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance (6,145) (5,914) (5,357) (6,063)
Other Comprehensive Income (Loss), Net of Tax 320 87 (468) 276
Change in Accounting Principle [1]       (40)
Ending Balance (5,825) (5,827) (5,825) (5,827)
Retained Earnings [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance 37,545 35,534 39,742 34,010
Net income (loss) 260 1,580 (1,479) 3,413
Dividends paid (455) (346) (913) (696)
Change in Accounting Principle [1]       40
Other (1) (1) (1) (2)
Ending Balance 37,351 36,769 37,351 36,769
Noncontrolling Interest [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Beginning Balance 72 122 69 125
Net income (loss) 18 17 46 30
Distributions to noncontrolling interests and other (6) (43) (32) (60)
Disposition (84)   (84)  
Other   (2) (1) (3)
Ending Balance $ 0 $ 98 $ 0 $ 98
[1]
*Cumulative effect of the adoption of ASU No. 2018-02,
 
"Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income."