Equity (Changes in Noncontrolling Interests) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2013
|
Sep. 30, 2013
|
Jun. 30, 2013
|
Mar. 31, 2013
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Net [Abstract] | |||||||||||
Net income attributable to common shareowners | $ 1,463 | $ 1,432 | $ 1,560 | $ 1,266 | $ 2,057 | $ 1,415 | $ 1,328 | $ 330 | $ 5,721 | $ 5,130 | $ 4,979 |
Transfers to noncontrolling interest - Increase in common stock for purchase of subsidiary shares | 0 | 0 | 3 | ||||||||
Transfers to noncontrolling interests - Decrease in common stock for purchase of subsidiary shares | (49) | (34) | (54) | ||||||||
Change from net income attributable to common shareowners and transfers to noncontrolling interest | $ 5,672 | $ 5,096 | $ 4,928 |