Accumulated Other Comprehensive Income Reclassifications out of Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Mar. 31, 2013		Mar. 31, 2012	Mar. 31, 2013		Mar. 31, 2012
Reclassifications out of Accumulated Other Comprehensive Income [Line Items]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax				$ (127)
Hedges and investment securities, net of tax	358		(60)	212		502
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax				2
Net of tax	8		3	9		(3)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax				(8)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	(189)		10	(226)		(186)
Reclassifications out of Accumulated Other Comprehensive Income	9			(37)	[1]
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	2	[2]		5	[2]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	82	[3]		170	[3]
Gains and Losses on Hedges and Investment Securities, before tax	84			175
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	(1)			(2)
Hedges and investment securities, net of tax	83			173
Pension Plans, Defined Benefit [Member]
Reclassifications out of Accumulated Other Comprehensive Income [Line Items]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	1	[4]		2	[4]
Defined Benefit Plan, Actuarial Gain (Loss)	(104)	[4]		(310)	[4]
Defined Benefit Plan Curtailments And Settlements	(2)	[4]		(4)	[4]
Defined Benefit Plan, Amortization of Net Gains (Losses)	(105)			(312)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax	31			102
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	$ (74)			$ (210)

[1] All amounts are net of tax

[2] Reclassified from accumulated other comprehensive income into interest expense.

[3] Reclassified from accumulated other comprehensive income into selling, general, and administrative expense and interest expense.

[4] Reclassified from accumulated other comprehensive income into costs of products sold and selling, general, and administrative expense. These components are included in the computation of net periodic pension cost (see Note 6, Postretirement Benefits for additional details).