Note 11: Shareowners' Equity and Noncontrolling Interest (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Equity, beginning of period	$ 27,069	$ 22,820
Net income	1,348	407
Total other comprehensive income (loss)	(440)	497
Total comprehensive income for the period	908	904
Common Stock issued under employee plans	251	229
Common Stock repurchased	(335)	0
Dividends on Common Stock	(465)	(412)
Dividends on ESOP Common Stock	(17)	(16)
Dividends attributable to noncontrolling interest	(56)	(58)
Purchase of subsidiary shares from noncontrolling interest	(10)	(9)
Sale of subsidiary shares in noncontrolling interest	237	15
Acquisition of noncontrolling interest	0	8
Disposition of noncontrolling interest	0	(4)
Redeemable noncontrolling interest in subsidiaries' earnings	0	(4)
Redeemable noncontrolling interest in other comprehensive income (loss)	4	1
Redeemable noncontrolling interest reclassification to noncontrolling interest	(23)	75
Equity, end of period	27,563	23,549
Redeemable noncontrolling interest, beginning of period	238	358
Redeemable noncontrolling interest, end of period	255	243
Transfers to noncontrolling interests - Decrease in common stock for purchase of subsidiary shares	(1)	(8)
Change from net income attributable to common shareowners and transfers to noncontrolling interest	1,265	322
Accumulated other comprehensive loss	(5,867)		(5,448)
Shareowners' Equity [Member]
Equity, beginning of period	25,914	21,880
Net income	1,266	330
Total other comprehensive income (loss)	(419)	489
Total comprehensive income for the period	847	819
Common Stock issued under employee plans	251	229
Common Stock repurchased	(335)	0
Dividends on Common Stock	(465)	(412)
Dividends on ESOP Common Stock	(17)	(16)
Purchase of subsidiary shares from noncontrolling interest	(1)	(8)
Sale of subsidiary shares in noncontrolling interest	0	0
Equity, end of period	26,194	22,492
Noncontrolling Interest [Member]
Equity, beginning of period	1,155	940
Net Income (Loss) Attributable to Noncontrolling Interest	82	77
Total other comprehensive income (loss)	(21)	8
Total comprehensive income for the period	61	85
Dividends attributable to noncontrolling interest	(56)	(58)
Purchase of subsidiary shares from noncontrolling interest	(9)	(1)
Sale of subsidiary shares in noncontrolling interest	237	15
Acquisition of noncontrolling interest	0	8
Disposition of noncontrolling interest	0	(4)
Redeemable noncontrolling interest in subsidiaries' earnings	0	(4)
Redeemable noncontrolling interest in other comprehensive income (loss)	4	1
Redeemable noncontrolling interest reclassification to noncontrolling interest	(23)	75
Equity, end of period	1,369	1,057
Redeemable Noncontrolling Interest [Member]
Net income	1	4
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(4)	(1)
Dividends attributable to noncontrolling interest	(3)	(11)
Purchase of subsidiary shares from noncontrolling interest	0	32
Redeemable noncontrolling interest reclassification to noncontrolling interest	$ 23	$ (75)