Carrying value as of the balance sheet date of the sum of short-term debt and current maturities of long-term debt and capital lease obligations, which are due within one year (or one business cycle if longer).

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Amount as of the balance sheet date of the unamortized adjustment to the carrying value of an interest-bearing hedged item made under an effective interest rate fair value hedge that is amortized upon discontinuation of the interest rate fair value hedge.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Borrowings (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
Debt Disclosure
Short-term debt	$ 9,181		$ 8,463
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	29,660		26,702
Less: Net unamortized discount	865		533
Add: Fair value adjustment	886		994
Long-Term Debt, including current portion	29,680		27,161
Less: Current maturities	5,593		4,306
Total long-term debt (excluding current portion)	24,088		22,857
Commercial paper
Debt Disclosure
Short-term debt	1,800		2,300
Weighted-average interest rates for short-term loans (as a percent)	0.10%		0.10%
Short-term loans
Debt Disclosure
Short-term debt	1,789		1,859
Weighted-average interest rates for short-term loans (as a percent)	1.80%		1.20%
Long term debt - current maturities
Debt Disclosure
Short-term debt	5,593		4,306
U.S. Dollar Notes and Debentures
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	25,656		24,192
2.79% Notes and Debentures, maturing in 2013-2014
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	7,131		8,615
Debt instrument, stated interest rate percentage (as a percent)	2.79%
1.46% Notes and Debentures, maturing in 2015-2016
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	5,807		2,414
Debt instrument, stated interest rate percentage (as a percent)	1.46%
5.29% Notes and Debentures, maturing in 2017-2021
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	7,457		8,600
Debt instrument, stated interest rate percentage (as a percent)	5.29%
1.88% Notes and debentures, maturing in 2022
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	1,000		500
Debt instrument, stated interest rate percentage (as a percent)	1.88%
7.00% Notes and Debentures, maturing in 2025
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	600		600
Debt instrument, stated interest rate percentage (as a percent)	7.00%
6.22% Notes and Debentures, maturing in 2027
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	469		469
Debt instrument, stated interest rate percentage (as a percent)	6.22%
6.50% Notes and Debentures, maturing in 2028
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	313		313
Debt instrument, stated interest rate percentage (as a percent)	6.50%
5.875% Notes and Debentures, maturing in 2032
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	600		600
Debt instrument, stated interest rate percentage (as a percent)	5.875%
8.00% Notes and Debentures, maturing in 2038
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	83		187
Debt instrument, stated interest rate percentage (as a percent)	8.00%	8.00%
5.60% Notes and Debentures, maturing in 2039
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	745		1,545
Debt instrument, stated interest rate percentage (as a percent)	5.60%	5.60%
4.00% Notes and debentures, maturing in 2042
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	1,107
Debt instrument, stated interest rate percentage (as a percent)	4.00%
7.00% Notes and Debentures, maturing in 2045
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	27		27
Debt instrument, stated interest rate percentage (as a percent)	7.00%
7.125% Notes and Debentures, maturing in 2096
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	316		322
Debt instrument, stated interest rate percentage (as a percent)	7.125%	7.125%
3.6% Euros maturing in 2013 - 2019
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	2,338		1,037
Debt instrument, stated interest rate percentage (as a percent)	3.60%
0.7% Japanese yen maturing in 2013-2014
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	878		1,123
Debt instrument, stated interest rate percentage (as a percent)	0.70%
3.8% Swiss francs maturing in 2015-2020
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	178		173
Debt instrument, stated interest rate percentage (as a percent)	3.80%
2.2% Canadian Maturing 2017
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	502
Debt instrument, stated interest rate percentage (as a percent)	2.20%
4.6% Other maturing in 2013-2017
Debt Disclosure
Aggregate carrying amount of long-term borrowings before adjusting for unamortized discount and fair value adjustment	$ 107		$ 177
Debt instrument, stated interest rate percentage (as a percent)	4.60%