Debt (Tables)

12 Months Ended

Mar. 31, 2013

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
	March 31,				March 31,
(Dollars in millions)		2013		2012	2013		2012
Commercial paper	$	24,590	$	21,247	0.24	%	0.38	%
Unsecured notes and loans payable		46,707		41,415	2.19	%	2.63	%
Secured notes and loans payable		7,009		9,789	0.60	%	0.67	%
Carrying value adjustment		526		783
Total debt	$	78,832	$	73,234	1.43	%	1.70	%

Schedule of Maturities of Long-term Debt

	Future
Years ending March 31,	debt maturities
(Dollars in millions)
2014		$	40,709
2015			9,427
2016			10,739
2017			4,608
2018			7,197
Thereafter			6,152
Total debt		$	78,832