Commitments and Contingencies (Tables)

3 Months Ended

Dec. 31, 2012

Commitments and Contingencies [Abstract]

Commitments and Guarantees

			Maximum commitment amount as of
(Dollars in millions)			December 31, 2012		March 31, 2012
Commitments:
	Credit facilities with vehicle and industrial equipment dealers		$	7,332	$	6,804
	Minimum lease commitments			79		81
Total commitments				7,411		6,885
Guarantees and other contingencies:
	Guarantees of affiliate pollution control and solid waste
		disposal bonds		100		100
Total commitments and guarantees			$	7,511	$	6,985
Wholesale financing demand note facilities			$	11,076	$	10,258

Future Minimum Lease Payments under Non-cancelable Operating Leases

	Future minimum
Years ending March 31,	lease payments
2013	$	5
2014		19
2015		18
2016		16
2017		11
Thereafter		10
Total	$	79