Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Statement of Other Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 694	$ 544	$ 1,242	$ 2,018	$ 1,919
Other Comprehensive Income (Loss), Before tax
Foreign currency translation adjustment, before tax	371	(707)	(751)	859	(557)
Pension and other postretirement benefit liabilities adjustment, before tax	292	11	(565)	300	(82)
Deferred gain (loss) on hedging avtivities, before tax	(72)	3	36	(3)	70
Unrealized gain (loss) on investments, before tax	(1)	(65)	(90)	36	43
Other Comprehensive Income (Loss), Tax
Foreign currency translation adjustment, tax effect	(51)		60
Pension and other postretirement benefit liabilities adjustment, tax effect	(100)	(3)	202	(106)	25
Deferred gain (loss) on hedging activities, tax effect	26	(2)	(15)	2	(27)
Unrealized gain (loss) on investments, tax effect		24	34	(13)	(16)
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustment, net of tax	320	(707)	(691)	859	(557)
Pension and other postretirement benefit liabilities adjustment, net of tax	192	8	(363)	194	(57)
Deferred gain (loss) on hedging activities, net of tax	(46)	1	21	(1)	43
Unrealized gain (loss) on investments, net of tax	(1)	(41)	(56)	23	27
Net of tax amount	465	(739)	(1,089)	1,075	(544)
Comprehensive income (loss) including noncontrolling interest	1,159	(195)	153	3,093	1,375
Less: Comprehensive income (loss) attributable to noncontrolling interests	10	4	13	(18)	(11)
Comprehensive income (loss) attributable to controlling interests	$ 1,149	$ (199)	$ 140	$ 3,111	$ 1,386