Debt (Tables)

3 Months Ended

Dec. 31, 2012

Debt [Abstract]

Debt and Related Weighted Average Contractual Interest Rates

Note 9 – Debt
Debt and the related weighted average contractual interest rates are summarized as follows:
					Weighted average
					contractual interest rates
	December 31,		March 31,			December 31,		March 31,
(Dollars in millions)		2012		2012		2012		2012
Commercial paper	$	24,921	$	21,247		0.29	%	0.38	%
Unsecured notes and loans payable		42,867		41,415		2.28	%	2.63	%
Secured notes and loans payable		7,919		9,789		0.66	%	0.67	%
Carrying value adjustment		652		783
Total debt	$	76,359	$	73,234		1.45	%	1.70	%