Debt And Financing Arrangements (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended
	Mar. 31, 2012	Mar. 31, 2012	Sep. 26, 2011
Debt face amount	$ 1,750,000,000	$ 1,750,000,000
Debt face amount exchanged for new debentures			404,000,000
Interest rate stated percentage	4.70%	4.70%
Debt exchange premium		32,000,000
Excess of fair value over carrying value of long-term debt	1,300,000,000	1,300,000,000
Lines of credit	6,700,000,000	6,700,000,000
Unused lines of credit	4,700,000,000	4,700,000,000
Maximum amount provided under accounts receivable securitization facility excluded in lines of credit	1,000,000,000	1,000,000,000
Amount utilized from the securitization facility	1,000,000,000	1,000,000,000
4.535% Debentures $528 Million Face Amount, Due In 2042 [Member]
Debt face amount			528,000,000
Interest rate stated percentage			4.535%
Debt instrument, maturity year		2042
0.875% Convertible Senior Notes $1.15 Billion Face Amount, Due In 2014 [Member]
Debt face amount	1,150,000,000	1,150,000,000
Debt instrument, maturity year		2014
Floating Rate Notes $1.4 Billion Face Amount, Due in 2012 [Member]
Debt face amount	1,400,000,000	1,400,000,000
Interest rate stated percentage	0.67%	0.67%
Debt instrument, maturity date		Aug. 13, 2012
Debt Instrument, floating interest rate		three-month LIBOR
Debt Instrument, basis spread on floating interest rate	0.16%	0.16%
Commercial Paper Borrowing Facility [Member]
Commercial paper borrowing facility included in lines of credit	4,300,000,000	4,300,000,000
Borrowing under commercial paper borrowing facility	$ 1,200,000,000	$ 1,200,000,000
7.5% Debentures $282 Million Face Amount, Due In 2027 [Member]
Interest rate stated percentage			7.50%
6.75% Debentures $200 Million Face Amount, Due In 2027 [Member]
Interest rate stated percentage			6.75%
6.625% Debentures $298 Million Face Amount, Due In 2029 [Member]
Interest rate stated percentage			6.625%
7.0% Debentures $246 Million Face Amount, Due In 2031 [Member]
Interest rate stated percentage			7.00%
6.45% Debentures $215 Million Face Amount, Due In 2038 [Member]
Interest rate stated percentage			6.45%
6.95% Debentures $250 Million Face Amount, Due In 2097 [Member]
Interest rate stated percentage			6.95%