Debt and Financing Arrangements (Details 2) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	1 Months Ended		3 Months Ended			12 Months Ended						1 Months Ended	12 Months Ended							1 Months Ended
	Mar. 31, 2010	Jun. 30, 2008	Jun. 30, 2011	Mar. 31, 2011	Mar. 31, 2010	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009	Jun. 30, 2007	Jun. 30, 2011 4.70% Debentures $1.75 billion face amount, due in 2041	Mar. 31, 2011 4.70% Debentures $1.75 billion face amount, due in 2041	Feb. 28, 2007 0.875% Convertible Senior Notes $1.15 billion face amount, due in 2014	Jun. 30, 2011 0.875% Convertible Senior Notes $1.15 billion face amount, due in 2014 days	Jun. 30, 2007 0.875% Convertible Senior Notes $1.15 billion face amount, due in 2014	Jun. 30, 2010 0.875% Convertible Senior Notes $1.15 billion face amount, due in 2014	Jun. 30, 2011 4.479% Debentures $750 million face amount, due in 2021	Mar. 30, 2011 4.479% Debentures $750 million face amount, due in 2021	Jun. 30, 2011 5.765% Debentures $1.0 billion face amount, due in 2041	Mar. 30, 2011 5.765% Debentures $1.0 billion face amount, due in 2041	Feb. 28, 2011 Floating Rate Notes $1.5 billion face amount, due in 2012	Jun. 30, 2011 Floating Rate Notes $1.5 billion face amount, due in 2012	Feb. 11, 2011 Floating Rate Notes $1.5 billion face amount, due in 2012	Jun. 30, 2011 Lines of credit	Jun. 30, 2010 Lines of credit	Jun. 30, 2011 Commercial paper borrowing facility.
Debt Instruments.
Proceeds from long-term debt borrowings		$ 1,750,000,000				$ 1,564,000,000	$ 27,000,000	$ 125,000,000				$ 1,150,000,000								$ 1,500,000,000
Remarketed debt face amount underlying the units											1,750,000,000						750,000,000		1,000,000,000
Shares issued related to equity unit conversion						1,750,000,000
Shares issued related to equity unit conversion (in shares)				44
Interest rate stated percentage for debt remarketed into two tranches (as a percent)											4.70%								4.70%
Interest rate stated percentage (as a percent)										4.70%	4.70%		0.875%		0.875%	4.479%	4.479%	5.765%	5.765%		0.42%
Effective interest rate (as a percent)																					0.00%
'Number of tranches debt was remarketed into				2
Convertible senior notes
Convertible debt initial conversion ratio													22.8423
Principal amount of debt used for conversion ratio													1,000
Convertible debt conversion price (in dollars per share)													$ 43.78
Minimum number of days within a specified consecutive trading day period in which the closing price of the entity's common stock must exceed the conversion price by a specified percentage rate for the notes to be redeemable (in days)													20
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price by a specified rate for a minimum amount of days in order for the notes to be redeemable (in days)													30
Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be convertible (as a percent)													140.00%
Number of consecutive business days immediately after any specified consecutive trading day period (in days)													5
Number of consecutive trading days immediately before a specified number of consecutive business days (in days)													5
Maximum percentage rate of the average product of the closing price of the Company's common stock and the average conversion rate of the notes during the measurement period (as a percent)													98.00%
Maximum amount of cash that holder would receive upon conversion													1,000
Percentage of principal amount plus accrued and unpaid interest at which holders may require the entity to repurchase the debt instrument													100.00%
Proceeds from notes recorded as long-term debt									853,000,000
Proceeds from notes recorded as equity									297,000,000
Discount amortization expense included in interest expense related to the Notes						43,000,000	40,000,000	39,000,000
Purchased call options with issuance of notes														300,000,000
Sale of warrants (in shares)														26.3
Exercise price of warrants (in dollars per share)														$ 62.56
Proceeds from sale of warrants														170,000,000
Net cost of purchased call options and warrants														130,000,000
Debt Instrument, floating interest rate																				three-month LIBOR
Debt Instrument, basis spread on floating interest rate																						0.16%
Lines of credit																							6,900,000,000
Unused lines of credit																							5,700,000,000
Commercial paper borrowing facility included in lines of credit																									4,600,000,000
Borrowing under commercial paper borrowing facility																									620,000,000
Outstanding standby letters of credit and surety bonds																							620,000,000	459,000,000
Weighted average interest rate on short term borrowings (as a percent)																							0.65%	2.29%
Other long-term debt disclosures
Aggregate principal amount of outstanding debentures repurchased	500,000,000				500,000,000
Charges on early extinguishment of debt	75,000,000		15,000,000	8,000,000	75,000,000	15,000,000	75,000,000
Premium and other related expenses on extinguishment of debt	71,000,000					21,000,000	71,000,000
Write-off of debt issuance costs	4,000,000
Excess of fair value over carrying value of long-term debt			842,000,000			842,000,000
Carrying amount of property plant and equipment pledged as collateral			344,000,000			344,000,000
Accounts receivable securitization facility period (in days)						364
Maximum amount provided under accounts receivable securitization facility			1,000,000,000			1,000,000,000
Aggregate maturities of long-term debt
Maturities of long-term debt due 2012			178,000,000			178,000,000
Maturities of long-term debt due 2013			1,800,000,000			1,800,000,000
Maturities of long-term debt due 2014			1,100,000,000			1,100,000,000
Maturities of long-term debt due 2015			28,000,000			28,000,000
Maturities of long-term debt due 2016			$ 17,000,000			$ 17,000,000