Debt (Tables)

3 Months Ended

Jun. 30, 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
	June 30,		March 31,			June 30,		March 31,
(Dollars in millions)		2012		2012		2012		2012
Commercial paper	$	24,634	$	21,247		0.34	%	0.38	%
Unsecured notes and loans payable		40,393		41,415		2.56	%	2.63	%
Secured notes and loans payable		9,484		9,789		0.69	%	0.67	%
Carrying value adjustment		721		783
Total debt	$	75,232	$	73,234		1.59	%	1.70	%