Accumulated Other Comprehensive Income / (Loss) Reclassifications out of Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2014		Dec. 31, 2013
Reclassifications out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax					$ (470)
Hedges and investment securities, net of tax	365		(71)		773		(310)
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax					(1)
Net of tax	1		(15)		(2)		(1)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax					(138)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	219		20		501		(36)
Reclassifications out of Accumulated Other Comprehensive Income					(15)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Reclassifications out of Accumulated Other Comprehensive Income [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	1	[1]	1	[1]	3	[1]	3	[1]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	66	[1]	58	[1]	128	[1]	56	[1]
Gains and Losses on Hedges and Investment Securities, before tax	67	[1]	59	[1]	131	[1]	59	[1]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	(1)	[1]	(1)	[1]	(2)	[1]	(1)	[1]
Hedges and investment securities, net of tax	66	[1]	58	[1]	129	[1]	58	[1]
Securities Investment [Member]
Reclassifications out of Accumulated Other Comprehensive Income [Line Items]
Gains and losses on investment securities	3	[2]	16	[2]	3	[2]	16	[2]
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax	(1)	[2]	(6)	[2]	(1)	[2]	(6)	[2]
Net of tax	2	[2]	10	[2]	2	[2]	10	[2]
Pension Plan [Member]
Reclassifications out of Accumulated Other Comprehensive Income [Line Items]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(2)	[3]	(2)	[3]	(5)	[3]	(3)	[3]
Defined Benefit Plan, Actuarial Gain (Loss)	(97)	[3]	(84)	[3]	(197)	[3]	(165)	[3]
Defined Benefit Plan, Amortization of Net Gains (Losses)	(99)	[3]	(86)	[3]	(202)	[3]	(168)	[3]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	28	[3]	22	[3]	56	[3]	46	[3]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(71)	[3]	(64)	[3]	(146)	[3]	(122)	[3]
Reclassification out of AOCI - Components [Domain]
Reclassifications out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications out of Accumulated Other Comprehensive Income	$ (3)		$ 4		$ (15)		$ (54)

[1] See Note 6 for classification of these items in the Consolidated Statement of Earnings.

[2] Reclassified from AOCI into Other non-operating income, net.

[3] Reclassified from AOCI into Cost of products sold and SG&A. These components are included in net periodic pension cost.