Consolidated Balance Sheet (Supplemental) (USD $) In Millions, unless otherwise specified	3 Months Ended
Dec. 31, 2014	Mar. 31, 2014
Statement of Financial Position [Abstract]
Variable Interest Entities Assets Liabilities	The following table presents the assets and liabilities of our consolidated variable interest entities (See Note 10).
ASSETS
Finance receivables, net	$ 66,548us-gaap_NotesReceivableNet	$ 65,176us-gaap_NotesReceivableNet
Investments in operating leases, net	29,730	24,769
Other Assets	1,822us-gaap_OtherAssets	1,870us-gaap_OtherAssets
Total assets	106,848us-gaap_Assets	102,740us-gaap_Assets
LIABILITIES
Debt	87,954	85,367
Other liabilities	3,283us-gaap_OtherLiabilities	2,888us-gaap_OtherLiabilities
Total liabilities	98,577us-gaap_Liabilities	95,002us-gaap_Liabilities
Variable Interest Entity, Primary Beneficiary [Member]
ASSETS
Finance receivables, net	9,616	9,501
Investments in operating leases, net	1,329	156
Other Assets	12	7
Total assets	10,957	9,664
LIABILITIES
Debt	9,335	8,158
Other liabilities	2	2
Total liabilities	$ 9,337	$ 8,160

Introductory paragraph for the table presenting assets and liabilities of consolidated variable interest entities.

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