Condensed Consolidated Statement of Changes in Shareowners' Equity (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Statement Of Changes In Shareowners Equity [Abstract]
Balance January 1	$ 77,110		$ 68,984
Dividends and other transactions with shareowners	3		1
Other comprehensive income, net of tax	504		1,294
Net Income (Loss) Attributable to Parent	1,575		1,825
Balance March 31	79,192		72,104
Noncontrolling interests	767	[1]	1,178
Total equity balance at March 31	$ 79,959		$ 73,282

[1] (c) Included accumulated other comprehensive income − net attributable to noncontrolling interests of $(131) million and $(141) million at March 31, 2012 and December 31, 2011, respectively.