v3.7.0.1
Noncontrolling Interests (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Activity for equity attributable to noncontrolling interests    
Beginning Balance $ 35,226 $ 40,082
Net income (loss) 599 (1,456)
Dividends paid (331) (313)
Repurchase of company common stock (112) 0
Distributions to noncontrolling interests (17) (16)
Other [1] 236 1,110
Ending Balance 35,601 39,407
Common Stockholders' Equity [Member]    
Activity for equity attributable to noncontrolling interests    
Beginning Balance 34,974 39,762
Net income (loss) 586 (1,469)
Dividends paid (331) (313)
Repurchase of company common stock (112) 0
Distributions to noncontrolling interests 0 0
Other [1] 236 1,109
Ending Balance 35,353 39,089
Noncontrolling Interest [Member]    
Activity for equity attributable to noncontrolling interests    
Beginning Balance 252 320
Net income (loss) 13 13
Dividends paid 0 0
Repurchase of company common stock 0 0
Distributions to noncontrolling interests (17) (16)
Other [1] 0 1
Ending Balance $ 248 $ 318
[1]
*Includes components of other comprehensive income, which are disclosed separately in the Consolidated Statement of Comprehensive Income.