Toyota Motor Credit (TM/28) 10-K 29 May 14 2014 Q4 Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Mar. 31, 2014	Apr. 30, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-K	'
Document Period End Date	31-Mar-14	'
Amendment Flag	'false	'
Entity Registrant Name	'Toyota Motor Credit Corporation	'
Entity Central Index Key	'0000834071	'
Entity Current Reporting Status	'Yes	'
Entity Voluntary Filers	'No	'
Current Fiscal Year End Date	'--03-31	'
Entity Filer Category	'Non-accelerated Filer	'
Entity Well Known Seasoned Issuer	'Yes	'
Entity Common Stock Shares Outstanding	'	91,500
Entity Public Float	$0	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q4	'

Consolidated_Statement_of_Inco

Consolidated Statement of Income (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Financing revenues:	'	'	'
Operating lease	$5,068	$4,748	$4,722	[1]
Retail	1,897	2,062	2,371
Dealer	432	434	365
Total financing revenues	7,397	7,244	7,458	[1]
Depreciation on operating leases	4,012	3,568	3,368	[1]
Interest expense	1,340	940	1,300
Net financing revenues	2,045	2,736	2,790
Insurance earned premiums and contract revenues	567	571	604
Investment and other income, net	135	173	113
Net financing revenues and other revenues	2,747	3,480	3,507
Expenses:	'	'	'
Provision for credit losses	170	121	-98
Operating and administrative	965	911	857
Insurance losses and loss adjustment expenses	258	293	325
Total expenses	1,393	1,325	1,084
Income before income taxes	1,354	2,155	2,423
Provision for income taxes	497	824	937
Net income	$857	$1,331	$1,486
[1]	Certain prior period amounts have been reclassified to conform to the current period presentation.

Consolidated_Statement_of_Comp

Consolidated Statement of Comprehensive Income (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'
Net income	$857,000,000	$1,331,000,000	$1,486,000,000
Other comprehensive income, net of tax:	'	'	'
Net unrealized (losses) gains on available-for-sale marketable securities, net of tax	-11,000,000	64,000,000	43,000,000
Reclassification adjustment for net (gains) losses on available-for-sale marketable securities included in investment and other income, net of tax	0	-13,000,000	17,000,000
Other comprehensive (loss) income	-11,000,000	51,000,000	60,000,000
Comprehensive income	$846,000,000	$1,382,000,000	$1,546,000,000

Consolidated_Statement_of_Comp1

Consolidated Statement of Comprehensive Income (Parentheticals) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Statement Of Income And Comprehensive Income [Abstract]	'	'	'
Net unrealized (losses) gains on available-for-sale marketable securities, tax benefit (provision)	$5	($40)	($23)
Reclassification adjustment for net (gains) losses on available-for-sale marketable securities included in net income, net of tax provision (benefit)	$0	$8	($10)

Consolidated_Balance_Sheet

Consolidated Balance Sheet (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
ASSETS	'	'
Cash and cash equivalents	$3,815	$4,723
Restricted cash and cash equivalents	1,721	491
Investments in marketable securities	5,389	5,397
Finance receivables, net	65,176	62,567
Investments in operating leases, net	24,769	20,384
Other assets	1,870	1,740
Total assets	102,740	95,302
LIABILITIES AND SHAREHOLDER'S EQUITY	'	'
Debt	85,367	78,832
Deferred income taxes	6,747	6,236
Other liabilities	2,888	2,677
Total liabilities	95,002	87,745
Commitments and contingencies (See Note 14)	'	'
Shareholder's equity:	'	'
Capital stock, no par value (100,000 shares authorized; 91,500 issued and outstanding at March 31, 2014 and 2013, respectively)	915	915
Additional paid-in-capital	2	2
Accumulated other comprehensive income	200	211
Retained earnings	6,621	6,429
Total shareholder's equity	7,738	7,557
Total liabilities and shareholder's equity	$102,740	$95,302

Consolidated_Balance_Sheet_Sup

Consolidated Balance Sheet (Supplemental) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Financial Position [Abstract]	'	'
Variable Interest Entities Assets Liabilities	'The following table presents the assets and liabilities of our consolidated variable interest entities.	'
ASSETS	'	'
Finance receivables, net	$65,176	$62,567
Investments in operating leases, net	24,769	20,384
Other Assets	1,870	1,740
Total assets	102,740	95,302
LIABILITIES	'	'
Debt	85,367	78,832
Other liabilities	2,888	2,677
Total liabilities	95,002	87,745
Variable Interest Entity, Primary Beneficiary [Member]	'	'
ASSETS	'	'
Finance receivables, net	9,501	7,556
Investments in operating leases, net	156	434
Other Assets	7	12
Total assets	9,664	8,002
LIABILITIES	'	'
Debt	8,158	7,009
Other liabilities	2	1
Total liabilities	$8,160	$7,010

Consolidated_Balance_Sheet_Par

Consolidated Balance Sheet (Parentheticals) (USD $)	Mar. 31, 2014	Mar. 31, 2013
Statement of Financial Position [Abstract]	'	'
Common Stock, Par or Stated Value Per Share	'	'
Common Stock, Shares Authorized	100,000	100,000
Common Stock, Shares, Issued	91,500	91,500
Common Stock, Shares, Outstanding	91,500	91,500

Consolidated_Statement_of_Shar

Consolidated Statement of Shareholder's Equity (USD $)	Total	Capital stock	Additional paid-in capital	Accumulated other comprehensive income	Retained earnings
In Millions
Balance at Mar. 31, 2011	$6,856	$915	$1	$100	$5,840
Net income	1,486	'	'	'	1,486
Other comprehensive income (loss), net of tax	60	'	'	60	'
Stock-based compensation	1	'	1	'	'
Dividends	-741	'	'	'	-741
Balance at Mar. 31, 2012	7,662	915	2	160	6,585
Net income	1,331	'	'	'	1,331
Other comprehensive income (loss), net of tax	51	'	'	51	'
Stock-based compensation	0	'	'	'	'
Dividends	-1,487	'	'	'	-1,487
Balance at Mar. 31, 2013	7,557	915	2	211	6,429
Net income	857	'	'	'	857
Other comprehensive income (loss), net of tax	-11	'	'	-11	'
Stock-based compensation	0	'	'	'	'
Dividends	-665	'	'	'	-665
Balance at Mar. 31, 2014	$7,738	$915	$2	$200	$6,621

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:	'	'	'
Net income	$857	$1,331	$1,486
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Depreciation and amortization	4,045	3,604	3,410
Recognition of deferred income	-1,278	-1,191	-1,183
Provision for credit losses	170	121	-98
Amortization of deferred costs	589	541	575
Foreign currency and other adjustments to the carrying value of debt, net	-205	-1,103	-1,893
Net realized (gain) loss from sales and other-than-temporary impairment on securities	0	-21	25
Net change in:	'	'	'
Restricted cash	-153	191	23
Derivative assets	9	12	832
Other assets (Note 8) and accrued income	87	37	74
Deferred income taxes	516	792	954
Derivative liabilities	-11	-50	-136
Other liabilities	248	134	-217
Net cash provided by operating activities	4,874	4,398	3,852
Cash flows from investing activities:	'	'	'
Purchases of investments in marketable securities	-5,114	-5,279	-7,696
Proceeds from sales of investments in marketable securities	596	385	1,571
Proceeds from maturities of investments in marketable securities	4,510	4,261	6,355
Acquisitions of finance receivables	-25,790	-25,604	-22,149
Collection of finance receivables	23,961	22,941	22,341
Net change in wholesale and certain working capital receivables	-804	-1,887	-267
Acquisitions of investments in operating leases	-14,410	-10,395	-7,619
Disposals of investments in operating leases	6,636	5,603	5,233
Advances to affiliates	-4,309	-5,199	-3,851
Repayments from affiliates	4,068	5,319	3,451
Cash equivalents restricted	-1,077	0	0
Other, net	-45	-31	-32
Net cash used in investing activities	-11,778	-9,886	-2,663
Cash flows from financing activities:	'	'	'
Proceeds from issuance of debt	20,226	22,230	20,308
Payments on debt	-16,662	-16,929	-21,824
Net change in commercial paper	3,123	3,349	1,298
Advances from affiliates	91	49	6
Repayments to affiliates	-117	-2,061	-2,006
Dividends paid to TFSA	-665	-1,487	-741
Net cash provided by (used in) financing activities	5,996	5,151	-2,959
Net (decrease) in cash and cash equivalents	-908	-337	-1,770
Cash and cash equivalents at the beginning of the period	4,723	5,060	6,830
Cash and cash equivalents at the end of the period	3,815	4,723	5,060
Supplemental disclosures:	'	'	'
Interest paid	1,102	1,258	1,591
Income taxes (received) paid, net	-30	21	-112
Non-cash financing:	'	'	'
Capital contribution for stock-based compensation	$0	$0	$1

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Mar. 31, 2014
Summary of Significant Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Note 1 – Summary of Significant Accounting Policies
	Nature of Operations
	Toyota Motor Credit Corporation was incorporated in California in 1982 and commenced operations in 1983. References herein to “TMCC” denote Toyota Motor Credit Corporation, and references herein to “we”, “our”, and “us” denote Toyota Motor Credit Corporation and its consolidated subsidiaries. We are wholly-owned by Toyota Financial Services Americas Corporation (“TFSA”), a California corporation, which is a wholly-owned subsidiary of Toyota Financial Services Corporation (“TFSC”), a Japanese corporation. TFSC, in turn, is a wholly-owned subsidiary of Toyota Motor Corporation (“TMC”), a Japanese corporation. TFSC manages TMC's worldwide financial services operations. TMCC is marketed under the brands of Toyota Financial Services and Lexus Financial Services.
	We provide a variety of finance and insurance products to authorized Toyota (including Scion) and Lexus vehicle dealers or dealer groups and, to a lesser extent, other domestic and import franchise dealers (collectively referred to as “vehicle dealers”) and their customers in the United States (excluding Hawaii) (the “U.S.”) including Puerto Rico. Our business is substantially dependent upon the sale of Toyota, Lexus and Scion vehicles.
	Our products fall primarily into the following product categories:
	Finance - We acquire a broad range of retail finance products including consumer and commercial installment sales contracts (“retail contracts”) in the U.S. and Puerto Rico and leasing contracts accounted for as either direct finance leases or operating leases (“lease contracts”) from vehicle and industrial equipment dealers in the U.S. We also provide dealer financing, including wholesale financing (also referred to as floorplan financing), working capital loans, revolving lines of credit and real estate financing to vehicle and industrial equipment dealers in the U.S. and Puerto Rico.
	Insurance - Through Toyota Motor Insurance Services, Inc., a wholly-owned subsidiary, and its insurance company subsidiaries (collectively referred to as “TMIS”), we provide marketing, underwriting, and claims administration related to covering certain risks of vehicle dealers and their customers. We also provide coverage and related administrative services to certain of our affiliates in the U.S.
	Our primary finance operations are located in the U.S. and Puerto Rico with earning assets principally sourced through Toyota and Lexus vehicle dealers. As of March 31, 2014, approximately 21 percent of vehicle retail contracts and lease assets were concentrated in California, 11 percent in Texas, 8 percent in New York, and 6 percent in New Jersey. Our insurance operations are located in the U.S. As of March 31, 2014, approximately 27 percent of insurance policies and contracts were concentrated in California, 7 percent in New York and 5 percent in New Jersey. Any material adverse changes to the economies or applicable laws in these states could have an adverse effect on our financial condition and results of operations.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Basis of Presentation
	Our accounting and financial reporting policies conform to accounting principles generally accepted in the United States of America (U.S. GAAP). Certain prior period amounts have been reclassified to conform to the current year presentation.
	Related party transactions presented in the Consolidated Financial Statements are disclosed in Note 15 – Related Party Transactions of the Notes to Consolidated Financial Statements.
	Principles of Consolidation
	The consolidated financial statements include the accounts of TMCC, its wholly-owned subsidiaries and all variable interest entities (“VIE”) of which we are the primary beneficiary. All intercompany transactions and balances have been eliminated.
	Variable Interest Entities
	A VIE is an entity that either (i) has insufficient equity to permit the entity to finance its activities without additional subordinated financial support or (ii) has equity investors who lack the characteristics of a controlling financial interest. The primary beneficiary of a VIE is the party with both the power to direct the activities of the VIE that most significantly impact the VIE's economic performance and the obligation to absorb the losses or the right to receive benefits that could potentially be significant to the VIE.
	To assess whether we have the power to direct the activities of a VIE that most significantly impact its economic performance, we consider all the facts and circumstances including our role in establishing the VIE and our ongoing rights and responsibilities. This assessment includes identifying the activities that most significantly impact the VIE's economic performance and identifying which party, if any, has power over those activities. In general, the party that makes the most significant decisions affecting the VIE is determined to have the power to direct the activities of a VIE. To assess whether we have the obligation to absorb the losses or the right to receive benefits that could potentially be significant to the VIE, we consider all of our economic interests, including debt and equity interests, servicing rights and fee arrangements, and any other variable interests in the VIE. If we determine that we are the party with the power to make the most significant decisions affecting the VIE, and we have an obligation to absorb the losses or the right to receive benefits that could potentially be significant to the VIE, then we consolidate the VIE.
	We perform ongoing reassessments, usually quarterly, of whether we are the primary beneficiary of a VIE. The reassessment process considers whether we have acquired or divested the power to direct the most significant activities of the VIE through changes in governing documents or other circumstances. We also reconsider whether entities previously determined not to be VIEs have become VIEs, based on certain events, and therefore are subject to the VIE consolidation framework.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Because of inherent uncertainty involved in making estimates, actual results could differ from those estimates and assumptions. The accounting estimates that are most important to our business are the determination of residual value and the allowance for credit losses as well as estimates related to the fair value of our derivative instruments and marketable securities.
	Revenue Recognition
	Retail and Dealer Financing Revenues
	Revenues associated with retail and dealer financing are recognized so as to approximate a constant effective yield over the contract term. Incremental direct fees and costs incurred in connection with the acquisition of retail contracts and dealer financing receivables, including incentive and rate participation payments made to vehicle and industrial equipment dealers, are capitalized and amortized so as to approximate a constant effective yield over the term of the related contracts. Payments received on affiliate sponsored special rate programs (“subvention”) are deferred and recognized to approximate a constant effective yield over the term of the related contracts.
	Operating Lease Revenues
	Operating lease revenues are recorded to income on a straight-line basis over the term of the lease. Incremental direct fees and costs received or paid in connection with the acquisition of operating leases, including incentive and rate participation payments made to vehicle and industrial equipment dealers and acquisition fees collected from customers, are capitalized or deferred and amortized on a straight-line basis over the term of the related contract. Payments received on subvention programs are deferred and recognized on a straight-line basis over the term of the related contracts. Operating lease revenue is recorded net of sales taxes collected from customers.
	Direct Finance Lease Revenues
	Revenue is recognized over the lease term so as to approximate a constant effective yield on the outstanding net investment. Incremental direct costs and fees paid or received in connection with the acquisition of direct finance leases, including incentive and rate participation payments made to vehicle and industrial equipment dealers and acquisition fees collected from customers, are capitalized or deferred and amortized to approximate a constant effective yield over the term of the related contracts. Payments received on subvention programs are deferred and recognized to approximate a constant effective yield over the term of the related contracts.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Insurance Earned Premiums and Contract Revenues
	Revenues from providing coverage under various contractual agreements are recognized over the term of the coverage in relation to the timing and level of anticipated claims and administrative expenses. Revenues from insurance policies, net of premiums ceded to reinsurers, are earned over the terms of the respective policies in proportion to the estimated loss development. Management relies on historical loss experience as a basis for establishing earnings factors used to recognize revenue over the term of the contract or policy.
	The portion of premiums and contract revenues applicable to the unexpired terms of the agreements is recorded as unearned insurance premiums and contract revenues. Agreements sold range in term from 3 to 120 months. Certain costs of acquiring new business, consisting primarily of dealer commissions and premium taxes, are deferred and amortized over the term of the related policies on the same basis as revenues are earned.
	Service commissions and fees are recognized over the term of the coverage in relation to the timing of services performed. The effect of subsequent cancellations is recorded as an offset to unearned insurance premiums and contract revenues.
	Depreciation on Operating Leases
	Depreciation on vehicle operating leases is recognized using the straight-line method over the lease term, typically two to five years. The depreciable basis is the original cost of the vehicle less the estimated residual value of the vehicle at the end of the lease term. During the lease term, adjustments to depreciation expense reflecting revised estimates of expected residual values at the end of the lease terms are recorded prospectively on a straight-line basis.
	Allowance for Credit Losses
	We maintain an allowance for credit losses to cover probable and estimable losses on our earning assets resulting from the failure of customers or dealers to make contractual payments. Management evaluates the allowance at least quarterly, considering a variety of factors and assumptions to determine whether the allowance is considered adequate to cover probable and estimable losses incurred as of the balance sheet date. The allowance for credit losses is management's estimate of the amount of probable incurred credit losses in our existing finance receivables and investment in operating leases portfolios.
	Management develops and documents the allowance for credit losses on finance receivables based on three portfolio segments. We also separately develop and document the allowance for credit losses for investments in operating leases. Investments in operating leases are not within the scope of accounting guidance governing the disclosure of portfolio segments. The determination of portfolio segments is based primarily on the qualitative consideration of the nature of our business operations and the characteristics of the underlying finance receivables. The three portfolio segments within finance receivables, net are:
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Retail Loan Portfolio Segment – The retail loan portfolio segment consists of retail contracts acquired from vehicle dealers in the U.S. and Puerto Rico (“retail loan contracts”). Under a retail loan contract, we are granted a security interest in the underlying collateral which consists primarily of Toyota, Scion or Lexus vehicles. Based on the common risk characteristics associated with the finance receivables, the retail loan portfolio segment is considered a single class of finance receivable.
	Commercial Portfolio Segment– The commercial portfolio segment consists of commercial contracts (“commercial loan contracts”) and leasing contracts accounted for as direct finance leases acquired from commercial truck and industrial equipment dealers in the U.S. Under commercial loan and direct finance leases, we are granted a security interest in the underlying collateral which consists of various types of commercial trucks and industrial equipment. Based on the common risk characteristics associated with the finance receivables and the similarity of the credit risk with respect to the two types of contracts, the commercial portfolio segment is considered a single class of finance receivable.
	Dealer Products Portfolio Segment – The dealer products portfolio segment consists of wholesale financing (also referred to as floorplan financing), working capital loans, revolving lines of credit and real estate financing to vehicle and industrial equipment dealers in the U.S. and Puerto Rico. Wholesale loans are primarily collateralized by new or used vehicle or equipment inventory with the outstanding balance fluctuating based on the level of inventory. Real estate loans are collateralized by the underlying real estate, are underwritten on a loan-to-value basis and are typically for a fixed term. Working capital loans and revolving lines of credit are granted for working capital purposes and are secured by dealership assets. Based on the risk characteristics associated with the underlying finance receivables, the dealer products portfolio segment consists of three classes of finance receivables: wholesale, real estate, and working capital.
	Methodology Used to Develop the Allowance for Credit Losses
	Retail Loan Portfolio Segment and Investments in Operating Leases
	The level of credit risk in our retail loan portfolio segment and our investments in operating leases is influenced primarily by two factors: default frequency and loss severity, which in turn are influenced by various factors such as economic conditions, the used vehicle market, purchase quality mix, contract term length, and operational changes.
	We evaluate the retail loan portfolio segment and investments in operating leases using methodologies that include roll rate, credit risk grade/tier, and vintage analysis. We review and analyze external factors, including changes in economic conditions, actual or perceived quality, safety and reliability of Toyota, Lexus and Scion vehicles, unemployment levels, the used vehicle market, and consumer behavior. In addition, internal factors, such as purchase quality mix and operational changes are also considered in the reviews.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Commercial Portfolio Segment
	The level of credit risk in our commercial portfolio segment is influenced primarily by two factors: default frequency and loss severity, which in turn are influenced by various economic factors, the used equipment and truck markets, purchase quality mix, contract term length, and operational changes.
	We evaluate the commercial portfolio segment using methodologies that include product grouping analysis, historical loss and loss frequency by product. We review and analyze external factors, including changes in economic conditions, unemployment level, and the used equipment and truck markets. In addition, internal factors, such as purchase quality mix and operational changes, are also considered in the reviews.
	Dealer Products Portfolio Segment
	The level of credit risk in our dealer products portfolio segment is influenced primarily by the financial strength of dealers within our portfolio, dealer concentration, collateral quality, and other economic factors. The financial strength of dealers within our portfolio is influenced by, among other factors, general economic conditions, the overall demand for new and used vehicles and industrial equipment and the financial condition of automotive manufacturers in general.
	We evaluate the dealer portfolio by first aggregating dealer financing receivables into loan-risk pools, which are determined based on the risk characteristics of the loan (e.g. secured by either vehicles and industrial equipment, real estate or dealership assets, or unsecured). We then analyze dealer pools using an internally developed risk rating. In addition, field operations management and our special assets group are consulted each quarter to determine if any specific dealer loan is considered impaired. If impaired loans are identified, specific reserves are established, as appropriate, and the loan is removed from the loan-risk pool for separate monitoring.
	Accounting for the Allowance for Credit Losses and Impaired Receivables
	The majority of the allowance for credit losses covers estimated losses on the retail loan portfolio segment and the commercial portfolio segment, which are collectively evaluated for impairment. The remainder of the allowance for credit losses covers the estimated losses on investments in operating leases and the dealer products portfolio segment. Within the dealer products portfolio segment, we establish specific reserves to cover the estimated losses on individual impaired loans (including loans modified in a troubled debt restructuring). The specific reserves are assessed based on discounted cash flows, the loan's observable market price, or the fair value of the underlying collateral if the loan is collateral dependent.
	Troubled debt restructurings in the retail loan and commercial portfolio segments are aggregated with their respective portfolio segments when determining the allowance for credit losses. Impaired loans in the retail loan and commercial loan portfolio segments are insignificant for individual evaluation and we have determined that the allowance for credit losses for each of the retail loan and commercial portfolio segments would not be materially different if they had been individually evaluated for impairment.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Increases to the allowance for credit losses are accompanied by corresponding charges to the provision for credit losses. The amount we do not expect to collect for retail and lease contracts is charged off against the allowance for credit losses when payments due are no longer expected to be received or the account is 120 days contractually delinquent, whichever occurs first.
	Collateral, if recoverable, is repossessed and sold. Any shortfalls in the retail loan and commercial portfolio segments and investments in operating leases between proceeds received from the sale of repossessed collateral and the amounts due from customers are charged against the allowance. Any shortfalls in the dealer products portfolio segment between proceeds received from the sale of repossessed collateral and the amounts specifically reserved will result in additional losses. The allowance related to our earning assets is included in Finance receivables, net and Investments in operating leases, net in the Consolidated Balance Sheet.
	Insurance Losses and Loss Adjustment Expenses
	Insurance losses and loss adjustment expenses include amounts paid and accrued for loss events that are known and have been recorded as claims, estimates of losses incurred but not reported that are based on actuarial estimates and historical loss development patterns, and loss adjustment expenses that are expected to be incurred in connection with settling and paying these claims.
	Accruals for unpaid losses, losses incurred but not reported, and loss adjustment expenses are included in other liabilities in the Consolidated Balance Sheet. Estimated liabilities are reviewed regularly and we recognize any adjustments in the periods in which they are determined. If anticipated losses, loss adjustment expenses, and unamortized acquisition and maintenance costs exceed the recorded unearned premium, a premium deficiency is recognized by first charging any unamortized acquisition costs to expense and then by recording a liability for any excess deficiency.
	Cash Equivalents
Cash equivalents, which consist of money market instruments, commercial paper and certificates of deposit, represent highly liquid investments with maturities of three months or less at purchase.
Restricted Cash and Cash Equivalents
Restricted cash represents proceeds from certain debt issuances for which the use of the cash is restricted, as well as customer collections on securitized receivables to be distributed to investors as payments on the related secured debt and certain reserve deposits held for securitization trusts. Restricted cash equivalents represent proceeds from the issuance of debt secured by retail loans in March 2014. The proceeds from this issuance are restricted to be used solely to acquire retail and lease contracts financing new Toyota and Lexus vehicles of certain specified “green” models. These amounts are held in money market instruments.
Note 1 – Summary of Significant Accounting Policies (Continued)
Investments in Marketable Securities
Investments in marketable securities consist of debt and equity securities. Debt and equity securities designated as available-for-sale (“AFS”) are recorded at fair value using quoted market prices where available with unrealized gains or losses included in accumulated other comprehensive income (“AOCI”), net of applicable taxes in the Consolidated Statement of Shareholder's Equity. Realized gains and losses are determined using either the specific identification method or first in first out method, depending on the type of investment in our portfolio. Realized investment gains and losses are reflected in Investment and other income, net in the Consolidated Statement of Income.
Other-than-Temporary Impairment
An unrealized loss exists when the current fair value of an individual security is less than its amortized cost basis. Unrealized losses that are determined to be temporary in nature are recorded, net of tax, in AOCI. We conduct periodic reviews of securities in unrealized loss positions for the purpose of evaluating whether the impairment is other-than-temporary.
As part of our ongoing assessment of other-than-temporary impairment (“OTTI”), we consider a variety of factors. Such factors include the length of time and extent to which the market value of a security has been less than amortized cost, adverse conditions specifically related to the industry, geographic area or financial condition of the issuer or underlying collateral of the security, the volatility of the fair value changes, and changes to the fair value after the balance sheet date.
An OTTI loss with respect to debt securities must be recognized in earnings if we have the intent to sell the debt security or it is more likely than not that we will be required to sell the debt security before recovery of its amortized cost basis. If we have the intent to sell, the cost basis of the security is written down to fair value and the write down is reflected in Investment and other income, net in the Consolidated Statement of Income. If we have no intent to sell and we believe that it is more likely than not we will not be required to sell these securities prior to recovery, the credit loss component of the unrealized losses is recognized in Investment and other income, net in the Consolidated Statement of Income, while the remainder of the loss is recognized in AOCI. The credit loss component recognized in Investment and other income, net in the Consolidated Statement of Income is identified as the portion of the amortized cost of the security not expected to be collected over the remaining term as projected using a cash flow analysis for debt securities.
We perform periodic reviews of our AFS equity securities to determine whether unrealized losses are temporary in nature. We consider our intent and ability to hold the security for a period of time sufficient for recovery of fair value. Where we lack that intent or ability, the equity security's decline in fair value is deemed to be other-than-temporary. If losses are considered to be other-than-temporary, the cost basis of the security is written down to fair value and the write down is reflected in Investment and other income, net in the Consolidated Statement of Income.
Note 1 – Summary of Significant Accounting Policies (Continued)
Finance Receivables
Our finance receivables consist of retail loan, commercial and dealer products portfolio segments. Finance receivables recorded on our balance sheet are comprised of the unpaid principal balance, plus accrued interest and deferred fees and costs, net of the allowance for credit losses, certain other dealer funds and deferred income. Direct finance leases are recorded on our balance sheet as the aggregate future minimum lease payments, contractual residual value of the leased vehicle or industrial equipment, and deferred income.
Finance receivables are classified as held-for-investment if the Company has the intent and ability to hold the receivables for the foreseeable future or until maturity or payoff. As of March 31, 2014 and 2013, all finance receivables were classified as held-for-investment and reported at amortized cost.
Impaired Receivables
A receivable account balance is considered impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due according to the terms of the contract. Factors such as payment history, compliance with terms and conditions of the underlying loan agreement and other subjective factors related to the financial stability of the borrower are considered when determining whether a loan is impaired.
Troubled Debt Restructurings
A troubled debt restructuring occurs when an account is modified through a concession to a borrower experiencing financial difficulty. An account modified under a troubled debt restructuring is considered to be impaired. In addition, troubled debt restructurings include accounts for which the customer has filed for bankruptcy protection. For such accounts, we no longer have the ability to modify the terms of the agreement without the approval of the bankruptcy court and the court may impose term modifications that we are obligated to accept.
Payment Defaults
A payment default on an account that has been modified as a troubled debt restructuring is deemed to have occurred when the account becomes thirty days past due. Accounts for which the debtor has filed for bankruptcy protection are not considered to have a payment default as we are prohibited from applying our normal collection procedures.
Nonaccrual Policy
Dealer Products Portfolio Segment
Impaired receivables in the dealer product portfolio segment are placed on nonaccrual status if full payment of principal or interest is in doubt, or when principal or interest is 90 days or more past due. Interest accrued, but not collected at the date a receivable is placed on nonaccrual status, is reversed against interest income. In addition, the amortization of net deferred fees is suspended. Interest income on nonaccrual receivables is recognized only to the extent it is received in cash. Accounts are restored to accrual status only when interest and principal payments are brought current and future payments are reasonably assured. Receivable balances are charged off against the allowance for credit losses when the loss has been realized.
Note 1 – Summary of Significant Accounting Policies (Continued)
Retail Loan and Commercial Portfolio Segments
Receivables within the retail loan and commercial portfolio segments are not placed on nonaccrual status when principal or interest is 90 days or more past due. Rather the amount we do not expect to collect is charged off against the allowance for credit losses when payments due are no longer expected to be received or the account is 120 days contractually delinquent, whichever occurs first.
Investments in Operating Leases
We record our investments in operating leases at acquisition cost, net of deferred fees and costs, deferred income, accumulated depreciation and the allowance for credit losses.
Nonaccrual Policy
Investments in operating leases are not placed on nonaccrual status. Rather, the amount we do not expect to collect is charged off against the allowance for credit losses when payments due are no longer expected to be received or the account is 120 days contractually delinquent, whichever occurs first.
Determination of Residual Value
Substantially all of our residual value risk relates to our vehicle lease portfolio. Residual values of lease earning assets are estimated at lease inception by examining external industry data, the anticipated Toyota, Lexus and Scion product pipeline and our own experience. Factors considered in this evaluation include, but are not limited to, local, regional and national economic forecasts, new vehicle pricing, new vehicle incentive programs, new vehicle sales, future plans for new Toyota, Lexus and Scion product introductions, competitor actions and behavior, product attributes of popular vehicles, the mix of used vehicle supply, the level of current used vehicle values, buying and leasing behavior trends, and fuel prices. We use various channels to sell vehicles returned at lease end.
On a quarterly basis, we review the estimated end-of-term market values of leased vehicles to assess the appropriateness of the carrying values at lease end. To the extent the estimated end-of-term market value of a leased vehicle is lower than the residual value established at lease inception, the residual value of the leased vehicle is adjusted downward so that the carrying value at lease end will approximate the estimated end-of-term market value. Factors affecting the estimated end-of-term market value are similar to those considered in the evaluation of residual values at lease inception discussed above. These factors are evaluated in the context of their historical trends to anticipate potential future changes in the relationship among these factors. For operating leases, adjustments are made prospectively on a straight-line basis over the remaining terms of the leases and are included in depreciation on operating leases in the Consolidated Statement of Income. For direct finance leases, adjustments are made at the time of assessment and are recorded as a reduction of direct finance lease revenues which is included under our retail revenues in the Consolidated Statement of Income.
We review our investments in operating leases for impairment whenever events or changes in circumstances indicate that the carrying value of the operating leases may not be recoverable. If such events or changes in circumstances are present, we perform a test for recoverability by comparing the expected undiscounted future cash flows (including expected residual values) over the remaining lease terms to the carrying value of the asset group. If the test for recoverability identifies a possible impairment, the asset group's fair value is measured in accordance with the fair value measurement framework. An impairment charge is recognized for the amount by which the carrying value of the asset group exceeds its estimated fair value and is recorded in the current period Consolidated Statement of Income.
Note 1 – Summary of Significant Accounting Policies (Continued)
Used Vehicles Held for Sale
Used vehicles held for sale consist of off-lease vehicles and repossessed vehicles. These vehicles are recorded at the lower of their carrying value or estimated fair value. For repossessed vehicles, the difference between the outstanding receivable and the amount the vehicle is recorded on our books is charged off against the allowance for credit losses.
Debt Issuance Costs
Costs that are direct and incremental to debt issuance are capitalized and amortized to interest expense on a level yield basis over the contractual term of the debt. All other costs related to debt issuance are expensed as incurred.
Fair Value Measurements
Some of our assets and liabilities are measured at fair value on a recurring basis including our cash equivalents, investments in marketable securities and derivatives. Certain other financial assets and liabilities are measured at fair value on a nonrecurring basis based on specific circumstances such as impairment. Finance receivables and debt are not presented in our financial statements at fair value, but their estimated fair value is included for disclosure purposes, as well as the methods and significant assumptions used to estimate their fair value.
Definition and Hierarchy
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. If quoted prices in an active market are available, fair value is determined by reference to these prices. If quoted prices are not available, fair value is determined by valuation models that primarily use, as inputs, market-based or independently sourced parameters, including but not limited to interest rates, volatilities, foreign exchange rates and credit curves. Additionally, we may reference prices for similar instruments, quoted prices or recent transactions in less active markets. We use prices and inputs that are current as of the measurement date, including during periods of market dislocation. In periods of market dislocation, the availability of prices and inputs may be reduced for certain financial instruments. This condition could result in a financial instrument being reclassified from Level 1 to Level 2 or from Level 2 to Level 3.
Level 1: Quoted (unadjusted) prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.
Level 2: Quoted prices in active markets for similar assets and liabilities, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability.
Level 3: Unobservable inputs that are supported by little or no market activity may require significant judgment in order to determine the fair value of the assets and liabilities.
Note 1 – Summary of Significant Accounting Policies (Continued)
The use of observable and unobservable inputs is reflected in the fair value hierarchy assessment disclosed in the tables within this document. The availability of observable inputs can vary based upon the financial instrument and other factors, such as instrument type, market liquidity and other specific characteristics particular to the financial instrument. To the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires additional judgment by management. The degree of management's judgment can result in financial instruments being classified as or transferred to the Level 3 category.
Valuation Methods
We maintain policies and procedures to value instruments using the best and most relevant data available. The Treasury Risk and Analytics Group (“TR&A”) is responsible for determining the fair value of our financial instruments. TR&A consists of quantitative analysts and risk and accounting professionals. Using benchmarking techniques, TR&A reviews our valuation pricing models at least annually to assess their ongoing propriety. As markets and products develop and the pricing for certain products becomes more or less transparent, TR&A refines its valuation methodologies. TR&A reviews the appropriateness of fair value measurements including validation processes, key model inputs, and the reconciliation of period-over-period fluctuations based on changes in key market inputs. Where possible, valuations, including both internally and externally obtained transaction prices, are validated against independent valuation sources. Our Fair Value Working Group (“FVWG”) reviews and approves the fair value measurement results and other relevant data quarterly. The FVWG consists of a cross-section of internal stakeholders who are knowledgeable in the area of financial valuations. All changes to our valuation methodologies are reviewed and approved by the FVWG.
We conduct reviews of our primary pricing vendors to understand and assess the reasonableness of inputs used in their pricing process. While we do not have access to our vendors' proprietary models, we perform detailed reviews of the pricing process, methodologies and control procedures for each asset class for which prices are provided. Our reviews include examination of the underlying inputs and assumptions for a sample of individual securities selected based on the nature and complexity of the securities. In addition, our pricing vendors have established processes in place for all valuations, which facilitates identification and resolution of potentially erroneous prices. We believe that the prices received from our pricing vendors are representative of prices that would be received to sell the assets or paid to transfer the liabilities at the measurement date and are classified appropriately in the hierarchy.
Note 1 – Summary of Significant Accounting Policies (Continued)
Valuation Adjustments
We may make valuation adjustments to ensure that financial instruments are recorded at fair value. These adjustments include amounts to reflect counterparty credit quality, our own creditworthiness, as well as constraints due to market illiquidity or unobservable parameters.
Counterparty Credit Valuation Adjustments – Adjustments are required when the market price (or parameter) is not indicative of the credit quality of the counterparty.
Non-Performance Credit Valuation Adjustments – Adjustments reflect our own non-performance risk when our liabilities are measured at fair value.
Liquidity Valuation Adjustments – Adjustments are necessary when we are unable to observe prices for a financial instrument due to market illiquidity.
Recurring Fair Value Measurements
This section describes the valuation methodologies, key inputs and significant assumptions for financial instruments measured at fair value.
Cash Equivalents
Cash equivalents include money market instruments, commercial paper and certificates of deposits, which represent highly liquid investments with maturities of three months or less at purchase. Where money market funds produce a daily net asset value in an active market, we use this value to determine the fair value of the fund investment and classify the investment in Level 1 of the fair value hierarchy. All other types of cash equivalents are classified in Level 2 of the fair value hierarchy.
Investments in Marketable Securities
The marketable securities portfolio consists of debt and equity securities. We estimate the value of our debt securities using observed transaction prices, independent pricing vendors, and internal pricing models.
Pricing methodologies and inputs to valuation models used by the pricing vendors depend on the security type. Where possible, quoted prices in active markets for identical securities are used to determine the fair value of the investment securities; these securities are classified in Level 1 of the fair value hierarchy. Where quoted prices in active markets are not available, the pricing vendor uses various pricing models for each asset class that are consistent with what market participants use. The inputs and assumptions to the models of the pricing vendors are derived from market observable sources including: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, benchmark securities, bids, offers, and other market-related data. Since many fixed income securities do not trade on a daily basis, the pricing vendors use applicable available information, such as benchmark curves, benchmarking of similar securities, sector groupings, and matrix pricing. These investments are classified in Level 2 of the fair value hierarchy. Our pricing vendors may provide us with valuations that are based on significant unobservable inputs; in such circumstances, we classify these investments in Level 3 of the fair value hierarchy. Valuations obtained from third party pricing vendors are validated to assess their reasonableness.
Note 1 – Summary of Significant Accounting Policies (Continued)
We hold investments in actively traded open-end equity mutual funds and private placement fixed income mutual funds. Where the funds produce a daily net asset value that is quoted in an active market, we use this value to determine the fair value of the fund investment and classify the investment in Level 1 of the fair value hierarchy. Where the funds produce a daily net asset value that is not quoted in an active market, we estimate the fair value of the investment using the net asset value per share.  We classify such funds in Level 2 of the fair value hierarchy as we have the ability to redeem our investment at the net asset value per share at the balance sheet date.
Derivatives
We estimate the fair value of our derivatives using industry standard valuation models that require observable market inputs, including market prices, yield curves, credit curves, interest rates, foreign exchange rates, volatilities and the contractual terms of the derivative instruments. For derivatives that trade in liquid markets, model inputs can generally be verified and do not require significant management judgment. These derivative instruments are classified in Level 2 of the fair value hierarchy.
Certain other derivative transactions trade in less liquid markets with limited pricing information. For such derivatives, key inputs to the valuation process include quotes from counterparties and other market data used to corroborate and adjust values where appropriate. Other market data includes values obtained from a market participant that serves as a third party pricing vendor. Inputs obtained from counterparties and third party pricing vendors are internally validated using valuation models to assess the reasonableness of changes in factors such as market prices, yield curves, credit curves, interest rates, foreign exchange rates and volatilities. These derivative instruments are classified in Level 3 of the fair value hierarchy.
Our derivative fair value measurements consider assumptions about counterparty credit risk and our own non-performance risk. We consider counterparty credit risk and our own non-performance risk through credit valuation adjustments.
Note 1 – Summary of Significant Accounting Policies (Continued)
Nonrecurring Fair Value Measurements
Impaired Finance Receivables
For finance receivables within the dealer products portfolio segment for which there is evidence of impairment, we may measure impairment based on discounted cash flows, the loan's observable market price or the fair value of the underlying collateral if the loan is collateral dependent. The fair values of impaired finance receivables are reported at fair value on a nonrecurring basis. The methods used to estimate the fair value of the underlying collateral depends on the specific class of finance receivable. For finance receivables within the wholesale class of finance receivables, the collateral value is generally based on wholesale market value or liquidation value for new and used vehicles. For finance receivables within the real estate class of finance receivables, the collateral value is generally based on appraisals. For finance receivables within the working capital class of finance receivables, the collateral value is generally based on the expected liquidation value of the underlying dealership assets. Adjustments may be performed in circumstances where market comparables are not specific to the attributes of the specific collateral or appraisal information may not be reflective of current market conditions due to the passage of time and the occurrence of market events since receipt of the information. As these valuations utilize unobservable inputs, our impaired finance receivables are classified in Level 3 of the fair value hierarchy.
Financial Instruments Not Carried at Fair Value
Finance Receivables
Our finance receivables consist of retail loans, comprised of retail loan contracts and commercial loan contracts, and dealer loans, comprised of wholesale, real estate and working capital financing. Retail loans are primarily valued using a securitization model that incorporates expected cash flows. Cash flows expected to be collected are estimated using contractual principal and interest payments adjusted for specific factors, such as prepayments, default rates, loss severity, credit scores, and collateral type. The securitization model utilizes quoted secondary market rates if available, or estimated market rates that incorporate management's best estimate of investor assumptions about the portfolio. Dealer loans are valued using a discounted cash flow model. Discount rates are derived based on market rates for equivalent portfolio bond ratings. As these valuations utilize unobservable inputs, our finance receivables are classified in Level 3 of the fair value hierarchy.
Commercial Paper
The carrying value of commercial paper issued is assumed to approximate fair value due to its short duration and generally negligible credit risk. We validate this assumption by recalculating the fair value of our commercial paper using quoted market rates. Commercial paper is classified in Level 2 of the fair value hierarchy.
Note 1 – Summary of Significant Accounting Policies (Continued)
Unsecured Notes and Loans Payable
Unsecured notes and loans payable are primarily valued using current market rates and credit spreads for debt with similar maturities. Our valuation models utilize observable inputs such as standard industry curves; therefore, we classify these unsecured notes and loans payables in Level 2 of the fair value hierarchy. Where observable inputs are not available, we use quoted market prices to estimate the fair value of unsecured notes and loans payable. These unsecured notes and loans payable are classified in Level 3 of the fair value hierarchy since the market for these instruments is not active. In a limited number of instances, where neither observable inputs nor quoted market prices are available, we estimate the fair value of unsecured notes and loan payable using quotes from counterparties or a third party pricing vendor. We review the appropriateness of these fair value measurements by assessing the reasonableness of period over period fluctuations. Since the valuations utilize unobservable inputs, we classify the unsecured notes and loans payables in Level 3 of the fair value hierarchy.
Secured Notes and Loans Payable
Fair value is estimated based on current market rates and credit spreads for debt with similar maturities. We also use internal assumptions, including prepayment speeds and expected credit losses on the underlying securitized assets, to estimate the timing of cash flows to be paid on these instruments. As these valuations utilize unobservable inputs, our secured notes and loans payables are classified in Level 3 of the fair value hierarchy.
Derivative Instruments
All derivative instruments are recorded on the balance sheet at fair value, taking into consideration the effects of legally enforceable master netting agreements that allow us to net settle asset and liability positions and offset cash collateral held with the same counterparty on a net basis. Changes in the fair value of derivatives are recorded in interest expense in the Consolidated Statement of Income.
We categorize derivatives as those designated for hedge accounting (“hedge accounting derivatives”) and those that are not designated for hedge accounting (“non-hedge accounting derivatives”). At the inception of a derivative contract, we may elect to designate a derivative as a hedge accounting derivative if certain criteria are met.
In order to qualify for hedge accounting, a derivative must be considered highly effective at reducing the risk associated with the exposure being hedged. When we designate a derivative in a hedging relationship, we contemporaneously document the risk management objective and strategy. This documentation includes the identification of the hedging instrument, the hedged item and the risk exposure, how we will assess effectiveness prospectively and retrospectively, and how often we will carry out this assessment.
We use the “long-haul” method of assessing effectiveness for our fair value hedges, except for certain types of existing hedge relationships that meet stringent criteria where we apply the shortcut method. The shortcut method provides an assumption of zero ineffectiveness that results in equal and offsetting changes in fair value in the Consolidated Statement of Income for both the hedged debt and the hedge accounting derivative. When the shortcut method is not applied, any ineffective portion of the derivative that is designated as a fair value hedge is recognized as a component of interest expense in the Consolidated Statement of Income. We recognize changes in the fair value of derivatives designated in fair value hedging relationships (including foreign currency fair value hedging relationships) in interest expense in the Consolidated Statement of Income along with the fair value changes of the related hedged item.
Income Taxes
We use the liability method of accounting for income taxes under which deferred tax assets and liabilities are adjusted to reflect changes in tax rates and laws in the period such changes are enacted resulting in adjustments to the current fiscal year's provision for income taxes.
TMCC files a consolidated federal income tax return with its subsidiaries and TFSA. TMCC files either separate or consolidated/combined state income tax returns with Toyota Motor North America (“TMA”), TFSA, or subsidiaries of TMCC. State income tax expense is generally recognized as if TMCC and its subsidiaries filed their tax returns on a stand-alone basis. In those states where TMCC and its subsidiaries join in the filing of consolidated or combined income tax returns, TMCC and its subsidiaries are allocated their share of the total income tax expense based on combined allocation/apportionment factors and separate company income or loss. Based on the federal and state tax sharing agreements, TFSA and TMCC and its subsidiaries pay for their share of the income tax expense and are reimbursed for the benefit of any of their tax losses utilized in the federal and state income tax returns.
Risk Transfer
Our insurance operations transfers certain risks to protect us against the impact of unpredictable high severity losses. The amounts recoverable from reinsurers and other companies that assume liabilities relating to our insurance operations are determined in a manner consistent with the related reinsurance or risk transfer agreement. Amounts recoverable from reinsurers and other companies on unpaid losses are recorded as a receivable but are not collectible until the losses are paid. Revenues related to risks transferred are recognized on the same basis as the related revenues from the underlying agreements. Covered losses are recorded as a reduction to insurance losses and loss adjustment expenses.
If we elect not to designate a derivative instrument in a hedging relationship, or the relationship does not qualify for hedge accounting treatment, the full change in the fair value of the derivative instrument is recognized as a component of interest expense in the Consolidated Statement of Income with no offsetting adjustment for the economically hedged item.
We review the effectiveness of our hedging relationships at least quarterly to determine whether the relationships have been and continue to be effective. We use regression analysis to assess the effectiveness of our hedges. When we determine that a hedging relationship is not or has not been effective, hedge accounting is no longer applied. If hedge accounting is discontinued, we continue to carry the derivative instrument as a component of other assets or other liabilities in the Consolidated Balance Sheet at fair value, with changes in fair value reported in interest expense in the Consolidated Statement of Income. Additionally, for discontinued fair value hedges, we cease to adjust the hedged item for changes in fair value and amortize the cumulative fair value adjustments recognized in prior periods over the remaining term of the hedged item.
We will also discontinue the use of hedge accounting if a derivative is sold, terminated, or if management determines that designating a derivative under hedge accounting is no longer deemed appropriate based on current investment strategy (“de-designated derivatives”). De-designated derivatives are included within the category of non-hedge accounting derivatives.
We also issue debt which is considered a “hybrid financial instrument”. These debt instruments are assessed to determine whether they contain embedded derivatives requiring separate reporting and accounting. The embedded derivative may be bifurcated and recorded on the balance sheet at fair value or the entire financial instrument may be recorded at fair value. Changes in the fair value of the bifurcated embedded derivative or the entire hybrid financial instrument are reported in interest expense in the Consolidated Statement of Income.
Offsetting of Derivatives
The accounting guidance permits the net presentation on the Consolidated Balance Sheet of derivative receivables and derivative payables with the same counterparty and the related cash collateral when a legally enforceable master netting agreement exists. When we meet this condition, we elect to present such balances on a net basis. Our embedded derivative contracts do not meet the accounting guidance permitting netting and therefore balances are presented gross.
We use master netting agreements to mitigate counterparty credit risk in derivative transactions. A master netting agreement is a contract with a counterparty that permits multiple transactions governed by that contract to be cancelled and settled with a single net balance paid to either party in the event of default or other termination event outside the normal course of business, such as a ratings downgrade of either party to the contract.
Our reciprocal collateral agreements require the transfer of cash collateral to the party in a net asset position across all transactions governed by the master netting agreement. Upon default, the collateral agreement grants the party in a net asset position the right to set-off amounts receivable against any posted collateral.
Foreign Currency Transactions
Certain transactions we have entered into related to debt are denominated in foreign currencies. If the debt is not in a designated hedge accounting relationship, the debt is translated into U.S. dollars using the applicable exchange rate at the transaction date and retranslated at each balance sheet date using the exchange rate in effect at that date. Gains and losses related to foreign currency transactions are included in interest expense in the Consolidated Statement of Income. Payments on debt in the Consolidated Statement of Cash Flows include repayment of principal and the net amount of exchange of notional on currency swaps that economically hedge these transactions. Proceeds from issuance of debt in the Consolidated Statement of Cash Flows include both the proceeds from the initial issuance of debt and the net amount of exchange of notional on currency swaps that economically hedge these transactions.
Note 1 – Summary of Significant Accounting Policies (Continued)
New Accounting Guidance
In July 2013, the Financial Accounting Standards Board (“FASB”) issued new guidance which requires an unrecognized tax benefit, or a portion of an unrecognized tax benefit, to be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. This accounting guidance is effective for us on April 1, 2014. The adoption of this guidance will not have a material impact on our consolidated financial statements as our current disclosure is consistent with the requirements of the new guidance.
In February 2013, the FASB issued new guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, except for certain obligations addressed within existing guidance in U.S. GAAP. Specifically, the new guidance requires an entity to measure these obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. Additionally, the guidance requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations within the footnotes to its financial statements. Currently no such recognition, measurement, and disclosure requirement exists under U.S. GAAP. This accounting guidance is effective for us on April 1, 2014. The adoption of this guidance will not have a material impact on our consolidated financial statements.
In May 2014, the FASB issued new guidance on the recognition of revenue from contracts with customers.  This comprehensive standard will replace all existing revenue recognition guidance.  This accounting guidance is effective for us on April 1, 2017.  We are currently evaluating the impact of this guidance on our consolidated financial statements.
Recently Adopted Accounting Guidance
In July 2013, we adopted new FASB accounting guidance which permits the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) to be used as a benchmark interest rate for hedge accounting purposes. The new guidance also removes the restriction on using different benchmark rates for similar hedges. The adoption of this guidance did not have a material impact on our consolidated financial statements.
In April 2013, we adopted new FASB accounting guidance that requires disclosures about offsetting assets and liabilities for derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions. The guidance retains the current U.S. GAAP model that allows companies the option to present net in their balance sheets derivatives that are subject to a legally enforceable netting arrangement with the same party, where rights of set-off are available, including in the event of default or bankruptcy. However, the guidance adds new disclosure requirements to improve transparency in the reporting of how companies mitigate credit risk, including disclosure of related collateral pledged or received. The adoption of this guidance did not have a material impact on our consolidated financial statements.
In April 2013, we adopted new FASB accounting guidance that requires us to disclose significant amounts reclassified out of each component of accumulated other comprehensive income and the affected income statement line item, only if the item reclassified is required to be reclassified to net income in its entirety. The adoption of this guidance did not have a material impact on our consolidated financial statements.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Mar. 31, 2014
Fair Value Measurements [Abstract]	'
Fair Value Measurements	'
	Note 2 – Fair Value Measurements
	The following table summarizes our financial assets and financial liabilities measured at fair value on a recurring basis as of March 31, 2014 and 2013, by level within the fair value hierarchy. Financial assets and financial liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
	Derivative assets were reduced by a counterparty credit valuation adjustment of $1 million as of March 31, 2014 and 2013. Derivative liabilities were reduced by a non-performance credit valuation adjustment of less than $1 million as of March 31, 2014 and 2013.
	As of March 31, 2014
						Fair value measurements on a recurring basis
											Counterparty
	(Dollars in millions)				Level 1		Level 2		Level 3		netting & collateral		Fair value
	Cash equivalents:
		Money market instruments			$	730	$	694	$	-	$	-	$	1,424
		Certificates of deposit				-		1,437		-		-		1,437
		Commercial paper				-		708		-		-		708
		Cash equivalents total				730		2,839		-		-		3,569
	Restricted Cash Equivalents- money market instruments					1,077		-		-		-		1,077
	Available-for-sale securities:
		Debt instruments:
			U.S. government and agency obligations			398		252		2		-		652
			Municipal debt securities			-		11		-		-		11
			Certificates of deposit			-		1,599		-		-		1,599
			Commercial paper			-		507		-		-		507
			Corporate debt securities			-		157		12		-		169
			Mortgage-backed securities:
				U.S. government agency		-		60		-		-		60
				Non-agency residential		-		-		5		-		5
				Non-agency commercial		-		-		43		-		43
			Asset-backed securities			-		-		27		-		27
		Equity instruments:
			Fixed income mutual funds:
				Short-term sector fund		-		44		-		-		44
				U.S. government sector fund		-		327		-		-		327
				Municipal sector fund		-		22		-		-		22
				Investment grade corporate sector fund		-		316		-		-		316
				High-yield sector fund		-		45		-		-		45
				Real return sector fund		-		274		-		-		274
				Mortgage sector fund		-		520		-		-		520
				Asset-backed securities sector fund		-		50		-		-		50
				Emerging market sector fund		-		66		-		-		66
				International sector fund		-		171		-		-		171
			Equity mutual fund			481		-		-		-		481
		Available-for-sale securities total				879		4,421		89		-		5,389
		Derivative assets:
			Foreign currency swaps			-		804		70		-		874
			Interest rate swaps			-		358		3		-		361
			Counterparty netting and collateral			-		-		-		-1,186		-1,186
		Derivative assets total				-		1,162		73		-1,186		49
	Assets at fair value					2,686		8,422		162		-1,186		10,084
		Derivative liabilities:
			Foreign currency swaps			-		-252		-		-		-252
			Interest rate swaps			-		-553		-		-		-553
			Counterparty netting and collateral			-		-		-		799		799
	Liabilities at fair value					-		-805		-		799		-6
	Net assets at fair value				$	2,686	$	7,617	$	162	$	-387	$	10,078
	Note 2 – Fair Value Measurements (Continued)
	As of March 31, 2013
					Fair value measurements on a recurring basis
											Counterparty
	(Dollars in millions)				Level 1		Level 2		Level 3		netting & collateral		Fair value
	Cash equivalents:
		Money market instruments			$	900	$	608	$	0	$	0	$	1,508
		Certificates of deposit				0		1,945		0		0		1,945
		Commercial paper				0		798		0		0		798
		Cash equivalents total				900		3,351		0		0		4,251
	Available-for-sale securities:
		Debt instruments:
		U.S. government and agency obligations			42		62		0		0		104
		Municipal debt securities			0		16		0		0		16
		Certificates of deposit			0		2,041		0		0		2,041
		Commercial paper			0		495		0		0		495
		Foreign government debt securities			0		3		0		0		3
		Corporate debt securities			0		124		4		0		128
		Mortgage-backed securities:
			U.S. government agency		0		87		0		0		87
			Non-agency residential		0		0		5		0		5
			Non-agency commercial		0		0		51		0		51
		Asset-backed securities			0		0		13		0		13
	Equity instruments:
		Fixed income mutual funds:
			Short-term sector fund		0		43		0		0		43
			U.S. government sector fund		0		312		0		0		312
			Municipal sector fund		0		22		0		0		22
			Investment grade corporate sector fund		0		327		0		0		327
			High-yield sector fund		0		42		0		0		42
			Real return sector fund		0		293		0		0		293
			Mortgage sector fund		0		648		0		0		648
			Asset-backed securities sector fund		0		47		0		0		47
			Emerging market sector fund		0		66		0		0		66
			International sector fund		0		170		0		0		170
		Equity mutual fund			484		0		0		0		484
	Available-for-sale securities total				526		4,798		73		0		5,397
	Derivative assets:
		Foreign currency swaps			0		1,076		63		0		1,139
		Interest rate swaps			0		568		12		0		580
		Counterparty netting and collateral			0		0		0		-1,661		-1,661
	Derivative assets total				0		1,644		75		-1,661		58
Assets at fair value					1,426		9,793		148		-1,661		9,706
	Derivative liabilities:
		Foreign currency swaps			0		-123		-8		0		-131
		Interest rate swaps			0		-766		0		0		-766
		Counterparty netting and collateral			0		0		0		892		892
	Derivative liabilities total				0		-889		-8		892		-5
	Embedded derivative liabilities				0		0		-12		0		-12
Liabilities at fair value					0		-889		-20		892		-17
Net assets at fair value				$	1,426	$	8,904	$	128	$	-769	$	9,689
Note 2 – Fair Value Measurements (Continued)
Transfers between levels of the fair value hierarchy are recognized at the end of their respective reporting periods. During fiscal 2014, certain corporate debt securities were transferred from Level 2 to Level 3 due to reduced transparency of inputs for these instruments. Additionally, during fiscal 2014 there was a $2 million transfer from the corporate debt securities asset class to the U.S. government and agency obligations asset class within the Level 3 debt instruments due to a reclassification of an existing debt instrument. During fiscal 2013, $53 million of U.S. government and agency obligations were valued using quoted prices for identical securities traded in an active market and were transferred from Level 2 to Level 1. Additionally, during fiscal 2013, certain available-for-sale debt instruments were transferred from Level 2 to Level 3 due to reduced transparency of market price quotations for these and/or comparable instruments.
The following tables summarize the reconciliation for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs for fiscal 2014 and 2013:
Year Ended March 31, 2014
			Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
			Available-for-sale securities													Derivatives								Total net assets (liabilities)
			U.S.										Total									Total
			government		Corporate			Mortgage		Asset-			available-			Interest		Foreign		Embedded		derivative
			and agency		debt			backed		backed			for-sale			rate		currency		derivatives,		assets
(Dollars in millions)			obligations		securities			securities		securities			securities			swaps		swaps		net		(liabilities)
Fair value, April 1, 2013			$	-	$		4	$	56	$	13		$	73		$	12	$	55	$	-12	$	55	$	128
Total gains (losses)
		Included in earnings		-			-		-		-			-			5		17		12		34		34
		Included in other
		comprehensive income		-			-		-2		-			-2			-		-		-		-		-2
Purchases, issuances, sales, and
	settlements
		Purchases		-			3		7		16			26			-		-		-		-		26
		Issuances		-			-		-		-			-			-		-		-		-		-
		Sales		-			-		-8		-			-8			-		-		-		-		-8
		Settlements		-			-		-5		-2			-7			-14		-2		-		-16		-23
Transfers in to Level 3				2			7		-		-			9			-		-		-		-		9
Transfers out of Level 3				-			-2		-		-			-2			-		-		-		-		-2
Fair value, March 31, 2014			$	2	$		12	$	48	$	27		$	89		$	3	$	70	$	-	$	73	$	162
The amount of total (losses)/gains
for the period included
in earnings attributable to the
change in unrealized gains or
losses related to assets still held
at the reporting date																$	-2	$	23	$	-	$	21	$	21
Note 2 – Fair Value Measurements (Continued)
Year Ended March 31, 2013
			Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
			Available-for-sale securities										Derivatives								Total net assets (liabilities)
										Total									Total
			Corporate		Mortgage			Asset-		available-			Interest			Foreign	Embedded		derivative
			debt		backed			backed		for-sale			rate			currency	derivatives,		assets
(Dollars in millions)			securities		securities			securities		securities			swaps			swaps	net		(liabilities)
Fair value, April 1, 2012			$	1	$	19	$	1		$	21		$	13	$	69	$	-24	$	58	$	79
Total gains
		Included in earnings		-		-		-			-			2		11		12		25		25
		Included in other
		comprehensive income		-		-		-			-			-		-		-		-		-
Purchases, issuances, sales, and
	settlements
		Purchases		-		37		7			44			-		-		-		-		44
		Issuances		-		-		-			-			-		-		-		-		-
		Sales		-		-6		-1			-7			-		-		-		-		-7
		Settlements		-		-7		-5			-12			-3		-25		-		-28		-40
Transfers in to Level 3				3		13		11			27			-		-		-		-		27
Transfers out of Level 3				-		-		-			-			-		-		-		-		-
Fair value, March 31, 2013			$	4	$	56	$	13		$	73		$	12	$	55	$	-12	$	55	$	128
The amount of total gains
for the period included
in earnings attributable to the
change in unrealized gains or
losses related to assets still held
at the reporting date													$	2	$	8	$	1	$	11	$	11
Nonrecurring Fair Value Measurements
Nonrecurring fair value measurements consist of Level 3 net finance receivables that are individually evaluated for impairment. These assets are not measured at fair value on a recurring basis but are subject to fair value adjustments when there is evidence of impairment. For these assets, we record the fair value on a nonrecurring basis and disclose changes in fair value during the reporting period. These nonrecurring fair value measurements were $177 million and $208 million as of March 31, 2014 and 2013, respectively.
Note 2 – Fair Value Measurements (Continued)
Level 3 Fair Value Measurements at March 31, 2014 and March 31, 2013
The fair value measurements of Level 3 financial assets and liabilities subject to recurring and nonrecurring fair value measurement, and the corresponding change in the fair value measurements of these assets and liabilities, were not significant to our Consolidated Balance Sheet or Consolidated Statement of Income as of and for the years ended March 31, 2014 and 2013.
Financial Instruments
The following tables provide information about financial assets and liabilities not carried at fair value in our Consolidated Balance Sheet:
					Fair value measurement hierarchy
			Carrying								Total Fair
(Dollars in millions)			value		Level 1		Level 2		Level 3		Value
As of March 31, 2014
Financial assets
	Finance receivables, net
		Retail loan	$	48,892	$	-	$	-	$	49,392	$	49,392
		Commercial		174		-		-		160		160
		Wholesale		9,344		-		-		9,391		9,391
		Real estate		4,601		-		-		4,552		4,552
		Working capital		1,802		-		-		1,807		1,807
Financial liabilities
	Commercial paper		$	27,709	$	-	$	27,709	$	-	$	27,709
	Unsecured notes and loans payable			49,500		-		49,697		736		50,433
	Secured notes and loans payable			8,158		-		-		8,165		8,165
Note 2 - Fair Value Measurements (Continued)
					Fair value measurement hierarchy
			Carrying								Total Fair
(Dollars in millions)			value		Level 1		Level 2		Level 3		Value
As of March 31, 2013
Financial assets
	Finance receivables, net
		Retail loan	$	47,312	$	-	$	-	$	48,313	$	48,313
		Commercial		134		-		-		126		126
		Wholesale		8,620		-		-		8,644		8,644
		Real estate		4,531		-		-		4,480		4,480
		Working capital		1,695		-		-		1,708		1,708
Financial liabilities
	Commercial paper		$	24,590	$	-	$	24,590	$	-	$	24,590
	Unsecured notes and loans payable			47,233		-		47,901		874		48,775
	Secured notes and loans payable			7,009		-		-		7,016		7,016
The carrying value of each class of finance receivables is presented including accrued interest and deferred fees and costs, net of deferred income and the allowance for credit losses. The amount excludes related party transactions of $89 million and $40 million at March 31, 2014 and 2013 and direct finance leases of $274 million and $235 million at March 31, 2014 and 2013, respectively.
The carrying value of unsecured notes and loans payable represents the sum of unsecured notes and loans payable and carrying value adjustment as described in Note 9 – Debt.

Investments_in_Marketable_Secu

Investments in Marketable Securities	12 Months Ended
	Mar. 31, 2014
Investments in Marketable Securities [Abstract]	'
Investments in Marketable Securities	'
	Note 3 – Investments in Marketable Securities
	We classify all of our investments in marketable securities as available-for-sale. The amortized cost and estimated fair value of investments in marketable securities and related unrealized gains and losses were as follows:
					31-Mar-14
					Amortized			Unrealized			Unrealized			Fair
	(Dollars in millions)				cost			gains			losses			value
	Available-for-sale securities:
		Debt instruments:
			U.S. government and agency obligations		$	652		$	1		$	-1		$	652
			Municipal debt securities			10			1			-			11
			Certificates of deposit			1,599			-			-			1,599
			Commercial paper			507			-			-			507
			Corporate debt securities			164			6			-1			169
			Mortgage-backed securities:
				U.S. government agency		60			1			-1			60
				Non-agency residential		4			1			-			5
				Non-agency commercial		44			1			-2			43
			Asset-backed securities			27			-			-			27
		Equity instruments:
			Fixed income mutual funds:
				Short-term sector fund		41			3			-			44
				U.S. government sector fund		329			-			-2			327
				Municipal sector fund		21			1			-			22
				Investment grade corporate sector fund		283			33			-			316
				High-yield sector fund		38			7			-			45
				Real return sector fund		275			-			-1			274
				Mortgage sector fund		519			1			-			520
				Asset-backed securities sector fund		40			10			-			50
				Emerging market sector fund		65			1			-			66
				International sector fund		170			2			-1			171
			Equity mutual fund			217			264			-			481
	Total investments in marketable securities				$	5,065		$	333		$	-9		$	5,389
	Note 3 – Investments in Marketable Securities (Continued)
						31-Mar-13
					Amortized			Unrealized			Unrealized			Fair
	(Dollars in millions)				cost			gains			losses			value
	Available-for-sale securities:
		Debt instruments:
			U.S. government and agency obligations		$	101		$	3		$	-		$	104
			Municipal debt securities			14			2			-			16
			Certificates of deposit			2,040			1			-			2,041
			Commercial paper			495			-			-			495
			Foreign government debt securities			3			-			-			3
			Corporate debt securities			122			6			-			128
			Mortgage-backed securities:
				U.S. government agency		83			4			-			87
				Non-agency residential		4			1			-			5
				Non-agency commercial		50			1			-			51
			Asset-backed securities			13			-			-			13
		Equity instruments:
			Fixed income mutual funds:
				Short-term sector fund		40			3			-			43
				U.S. government sector fund		296			16			-			312
				Municipal sector fund		19			3			-			22
				Investment grade corporate sector fund		273			54			-			327
				High-yield sector fund		34			8			-			42
				Real return sector fund		284			9			-			293
				Mortgage sector fund		663			-			-15			648
				Asset-backed securities sector fund		38			9			-			47
				Emerging market sector fund		63			3			-			66
				International sector fund		163			7			-			170
			Equity mutual fund			259			225			-			484
	Total investments in marketable securities				$	5,057		$	355		$	-15		$	5,397
	The fixed income mutual funds include investments in funds that are privately placed and managed by an open-end investment management company (the “Trust”). The total fair value of private placement fixed income mutual funds was $1.8 billion and $2.0 billion at March 31, 2014 and 2013, respectively. We may redeem shares during any 90 day period solely in cash up to the lesser of $250 thousand or 1 percent of the Trust's asset value at the beginning of such period. Although the Trust will normally redeem all shares for cash, it may, in unusual circumstances, redeem amounts exceeding the lesser of the two amounts described above, in whole or in part, by payment in kind of securities held by the respective fund.
Note 3 – Investments in Marketable Securities (Continued)
Unrealized Losses on Securities
The following table presents the fair value and gross unrealized losses of investments in marketable securities that had been in a continuous unrealized loss position for less than twelve consecutive months. These unrealized losses are recorded in accumulated other comprehensive income, net of applicable taxes in our Consolidated Statement of Shareholder's Equity:
						Less than 12 months as of
						31-Mar-14						31-Mar-13
						Fair			Unrealized			Fair			Unrealized
(Dollars in millions)						value			losses			value			losses
Available-for-sale securities:
	Debt instruments:
			U.S. government and agency
				obligations		$	33		$	-1		$	-		$	-
			Corporate debt securities				43			-1			-			-
			Mortgage backed securities:
				U.S. government agency			35			-1			-			-
	Equity instruments:
		Fixed income mutual funds:
			U.S. government sector fund				270			-2			-			-
			Real return sector fund				268			-1			-			-
			Mortgage sector fund				-			-			532			-12
			International sector fund				138			-1			-			-
Total investments in marketable securities						$	787		$	-7		$	532		$	-12
At March 31, 2014 and 2013, the unrealized losses of investments that had been in a loss position for 12 consecutive months or more were not significant.
Realized Gains and Losses on Securities
The following table represents realized gains and losses by transaction type for the following:
			Years Ended March 31,
(Dollars in millions)			2014		2013		2012
Available-for-sale securities:
	Realized gains on sales	$	59	$	23	$	16
	Realized losses on sales	$	-4	$	-2	$	-41
	Other-than-temporary impairment	$	-55	$	-	$	-
Substantially all of the other-than-temporary impairment write-downs of $55 million during the year ended March 31, 2014 were related to fixed income mutual funds.
Note 3 – Investments in Marketable Securities (Continued)
Contractual Maturities and Yields
The fair value and contractual maturities of investments in marketable securities at March 31, 2014 are summarized in the following table. Prepayments may cause actual maturities to differ from scheduled maturities.
		Due in 1 Year or					Due after 1 Year					Due after 5 Years
		Less					through 5 Years					through 10 Years					Due after 10 Years				Total
(Dollars in millions)		Amount			Yield		Amount			Yield		Amount			Yield		Amount		Yield		Amount		Yield
Fair Value of Available-for-Sale Securities:
Debt instruments:
U.S. government and
	agency obligations	$	570		0.13	%	$	59		1.57	%	$	23		1.61	%	$	-	0	%	$	652	0.81	%
Municipal debt securities			-		0			-		0			2		5.58			9	5.57			11	5.58
Certificates of deposit			1,599		0.23			-		0			-		0			-	0			1,599	0.23
Commercial paper			507		0.17			-		0			-		0			-	0			507	0.17
Corporate debt
	securities		2		5.51			63		3.67			64		3.75			40	4.68			169	3.9
Mortgage-backed securities:
	U.S. government agency		-		0			1		5.78			3		3.45			56	3.45			60	3.47
	Non-agency residential		-		0			-		0			-		0			5	9.49			5	9.49
	Non-agency commercial		-		0			3		2.24			1		3.28			39	3.11			43	3.06
Asset-backed securities			-		0			5		0.75			4		1.88			18	2.66			27	2.08
Debt instruments total			2,678		0.2			131		2.59			97		3.2			167	3.87			3,073	0.7
Equity instruments:
Fixed income mutual funds																						1,835	4.41
Equity mutual funds																						481	4.27
Equity instruments total			-					-					-					-				2,316	4.38
Total fair value		$	2,678		0.2	%	$	131		2.59	%	$	97		3.2	%	$	167	3.87	%	$	5,389	2.28	%
Total amortized cost		$	2,679				$	127				$	97				$	164			$	5,065
Yields are based on the amortized cost balances of securities held at March 31, 2014. Yields are derived by aggregating the monthly result of interest and dividend income (including the effect of related amortization of premiums and accretion of discounts) divided by amortized cost. Equity instruments do not have a stated maturity date.
Securities on Deposit
In accordance with statutory requirements, we had on deposit with state insurance authorities U.S. debt securities with amortized cost and fair value of $6 million at March 31, 2014 and 2013.

Finance_Receivables_Net

Finance Receivables, Net	12 Months Ended
	Mar. 31, 2014
Finance Receivables, Net [Abstract]	'
Finance Receivables, Net	'
	Note 4 – Finance Receivables, Net
	Finance receivables, net consist of retail and dealer accounts including accrued interest and deferred fees and costs, net of the allowance for credit losses and deferred income. Pledged receivables represent retail loan receivables that have been sold for legal purposes to securitization trusts but continue to be included in our consolidated financial statements. Cash flows from these receivables are available only for the repayment of debt issued by these trusts and other obligations arising from the securitization transactions. They are not available for payment of our other obligations or to satisfy claims of our other creditors.
	(Dollars in millions)			31-Mar-14			31-Mar-13
	Retail receivables			$	40,216		$	40,508
	Pledged retail receivables				9,633			7,669
	Dealer financing				15,925			14,995
					65,774			63,172
	Deferred origination (fees) and costs, net				651			634
	Deferred income				-863			-794
	Allowance for credit losses
		Retail and pledged retail receivables			-298			-338
		Dealer financing			-88			-107
			Total allowance for credit losses		-386			-445
	Finance receivables, net			$	65,176		$	62,567
	Contractual maturities on retail receivables and dealer financing are as follows (dollars in millions):
					Contractual maturities
	Years ending March 31,				Retail receivables			Dealer financing
	2015				$	14,336		$	11,345
	2016					12,719			1,546
	2017					10,397			1,020
	2018					7,473			731
	2019					3,768			806
	Thereafter					1,150			477
	Total				$	49,843		$	15,925
	Finance receivables, net and retail receivables presented in the previous tables include direct finance lease receivables, net of $274 million and $235 million at March 31, 2014 and 2013, respectively. Contractual maturities of retail receivables exclude $6 million of estimated unguaranteed residual values related to direct finance leases.
	A significant portion of our finance receivables has historically settled prior to contractual maturity. Contractual maturities shown above should not be considered indicative of future cash collections.
	Note 4 – Finance Receivables, Net (Continued)
	Credit Quality Indicators
	We are exposed to credit risk on our finance receivables. Credit risk is the risk of loss arising from the failure of customers or dealers to meet the terms of their contracts with us or otherwise fail to perform as agreed.
	Retail Loan and Commercial Portfolio Segments
	Retail loan and commercial portfolio segments each consist of one class of finance receivables. While we use various credit quality metrics to develop our allowance for credit losses on the retail loan and commercial portfolio segments, we primarily utilize the aging of the individual accounts to monitor the credit quality of these finance receivables. Based on our experience, the payment status of borrowers is the strongest indicator of the credit quality of the underlying receivables. Payment status also impacts charge-offs.
	Individual borrower accounts for each class of finance receivables within the retail loan and commercial portfolio segments are segregated into one of four aging categories based on the number of days outstanding. The aging for each class of finance receivables is updated quarterly.
	Dealer Products Portfolio Segment
	For three classes of finance receivables within the dealer products portfolio segment (wholesale, real estate and working capital), all loans outstanding for an individual dealer or dealer group, and affiliated entities, are aggregated and evaluated collectively by dealer or dealer group. This reflects the interconnected nature of financing provided to our individual dealer and dealer group customers, and their affiliated entities.
	When assessing the credit quality of the finance receivables within the dealer products portfolio segment, we segregate the finance receivables account balances into four distinct credit quality indicators based on internal risk assessments. The internal risk assessments for all finance receivables within the dealer products portfolio segment are updated on a monthly basis.
	The four credit quality indicators are:
	Performing – Account not classified as either Credit Watch, At Risk or Default
	Credit Watch – Account designated for elevated attention
	At Risk – Account where there is an increased likelihood that default may exist based on qualitative and quantitative factors
	Default – Account is not currently meeting contractual obligations or we have temporarily waived certain contractual requirements
	Note 4 - Finance Receivables, Net (Continued)
	The tables below present each credit quality indicator by class of finance receivable as of March 31, 2014 and 2013:
			Retail Loan						Commercial
	(Dollars in millions)		31-Mar-14			31-Mar-13			31-Mar-14			31-Mar-13
	Aging of finance receivables:
		Current	$	48,828		$	47,236		$	432		$	362
		30-59 days past due		459			454			6			6
		60-89 days past due		90			87			1			1
		90 days or greater past due		33			31			-			-
	Total		$	49,410		$	47,808		$	439		$	369
			Wholesale						Real Estate						Working Capital
	(Dollars in millions)		31-Mar-14			March 31, 20131			31-Mar-14			31-Mar-13			31-Mar-14			31-Mar-13
	Credit quality indicators:
		Performing	$	8,129		$	7,740		$	3,791		$	3,968		$	1,642		$	1,616
		Credit Watch		1,282			915			855			583			158			80
		At Risk		24			33			12			28			25			28
		Default		1			1			-			1			6			2
	Total		$	9,436		$	8,689		$	4,658		$	4,580		$	1,831		$	1,726
	1Certain prior period amounts have been reclassified to conform to the current period presentation.
	Note 4 – Finance Receivables, Net (Continued)
	Impaired Finance Receivables
	The following table summarizes the information related to our impaired loans by class of finance receivable as of March 31, 2014 and 2013:
		Impaired												Individually Evaluated
	Finance Receivables						Unpaid Principal Balance						Allowance
(Dollars in millions)	2014			2013			2014			2013			2014			2013
Impaired account balances individually evaluated for impairment with an allowance:
Wholesale	$	13		$	16		$	13		$	16		$	1		$	3
Real estate		27			33			27			33			8			7
Working capital		23			24			23			24			22			23
Total	$	63		$	73		$	63		$	73		$	31		$	33
Impaired account balances individually evaluated for impairment without an allowance:
Wholesale	$	51		$	66		$	51		$	66
Real estate		90			97			90			97
Working capital		4			5			4			5
Total	$	145		$	168		$	145		$	168
Impaired account balances aggregated and evaluated for impairment:
Retail loan	$	322		$	415		$	318		$	410
Commercial		1			1			1			1
Total	$	323		$	416		$	319		$	411
Total impaired account balances:
Retail loan	$	322		$	415		$	318		$	410
Commercial		1			1			1			1
Wholesale		64			82			64			82
Real estate		117			130			117			130
Working capital		27			29			27			29
Total	$	531		$	657		$	527		$	652
As of March 31, 2014 and 2013, the impaired finance receivables balance for accounts in the dealer products portfolio segment that were on nonaccrual status was $54 million and $69 million, respectively and there were no charge-offs against the allowance for credit losses. Therefore, the impaired finance receivables balance is equal to the unpaid principal balance.
Note 4 – Finance Receivables, Net (Continued)
The following table summarizes the average impaired finance receivables as of the balance sheet date and the interest income recognized on these loans during fiscal 2014 and 2013:
		Average Impaired Finance Receivables						Interest Income Recognized
		Years ended March 31,						Years ended March 31,
(Dollars in millions)		2014			2013			2014			2013
Impaired account balances individually evaluated for impairment with an allowance:
Wholesale		$	16		$	22		$	-		$	-
Real estate			32			75			1			1
Working capital			24			24			2			1
Total		$	72		$	121		$	3		$	2
Impaired account balances individually evaluated for impairment without an allowance:
Wholesale		$	59		$	63		$	1		$	2
Real estate			93			59			4			4
Working capital			4			2			-			-
Total		$	156		$	124		$	5		$	6
Impaired account balances aggregated and evaluated for impairment:
Retail loan		$	368		$	462		$	27		$	37
Commercial			1			1			-			-
Total		$	369		$	463		$	27		$	37
Total impaired account balances:
Retail loan		$	368		$	462		$	27		$	37
Commercial			1			1			-			-
Wholesale			75			85			1			2
Real estate			125			134			5			5
Working capital			28			26			2			1
Total		$	597		$	708		$	35		$	45
Interest income recognized using a cash-basis method of accounting during fiscal 2014 and 2013 was not significant.
Note 4 – Finance Receivables, Net (Continued)
Troubled Debt Restructuring
For accounts not under bankruptcy protection, the amount of finance receivables modified as a troubled debt restructuring during fiscal 2014 and 2013 was not significant for each class of finance receivables. Troubled debt restructurings for accounts within the retail loan class of finance receivables are comprised exclusively of contract term extensions that reduce the monthly payment due from the customer. Troubled debt restructurings for accounts within the commercial class of finance receivables consist of contract term extensions, interest rate adjustments, or a combination of the two. For the three classes of finance receivables within the dealer products portfolio segment, troubled debt restructurings include contract term extensions, interest rate adjustments, waivers of loan covenants, or any combination of the three. Troubled debt restructurings of accounts not under bankruptcy protection did not include forgiveness of principal during fiscal 2014 and 2013.
We consider finance receivables under bankruptcy protection within the retail loan and commercial classes troubled debt restructurings as of the date we receive notice of a customer filing for bankruptcy protection, regardless of the ultimate outcome of the bankruptcy proceedings. The bankruptcy court may impose modifications as part of the proceedings, including interest rate adjustments and forgiveness of principal. For fiscal 2014 and 2013, the financial impact of troubled debt restructurings related to accounts under bankruptcy protection was not significant to our Consolidated Statement of Income and Consolidated Balance Sheet.
Payment Defaults
Finance receivables modified as troubled debt restructurings for which there was a subsequent payment default during fiscal 2014 and 2013, and for which the modification occurred within twelve months of the payment default, were not significant for all classes of receivables.

Investments_in_Operating_Lease

Investments in Operating Leases, Net	12 Months Ended
	Mar. 31, 2014
Investments in Operating Leases, Net [Abstract]	'
Investments in Operating Leases, Net	'
	Note 5 – Investments in Operating Leases, Net
	Investments in operating leases, net consist of vehicle and equipment leases, net of deferred fees and costs, deferred income, accumulated depreciation and the allowance for credit losses. Pledged investments in operating leases represent beneficial interests in a pool of certain vehicle leases that have been sold for legal purposes to securitization trusts but continue to be included in our consolidated financial statements. Cash flows from these pledged investments in operating leases are available only for the repayment of debt issued by these trusts and other obligations arising from the securitization transactions. They are not available for payment of our other obligations or to satisfy claims of our other creditors.
	Investments in operating leases, net consisted of the following:
	(Dollars in millions)	31-Mar-14		31-Mar-13
	Investments in operating leases	$	31,023	$	25,957
	Pledged investments in operating leases		248		630
			31,271		26,587
	Deferred origination (fees) and costs, net		-146		-125
	Deferred income		-826		-609
	Accumulated depreciation		-5,462		-5,387
	Allowance for credit losses		-68		-82
	Investments in operating leases, net	$	24,769	$	20,384
	Future minimum lease rentals on operating leases are as follows (dollars in millions):
		Future minimum
	Years ending March 31,	rentals on operating leases
	2015	$	4,220
	2016		2,912
	2017		1,093
	2018		193
	2019		29
	Thereafter		1
	Total	$	8,448
	A portion of our operating lease contracts has historically terminated prior to maturity. Future minimum rentals shown above should not be considered indicative of future cash collections.

Allowance_for_Credit_Losses

Allowance for Credit Losses	12 Months Ended
	Mar. 31, 2014
Allowance for Credit Losses [Abstract]	'
Allowance for Credit Losses	'
	Note 6 – Allowance for Credit Losses
	The following table provides information related to our allowance for credit losses on finance receivables
	and investments in operating leases:
		Years ended March 31,
	(Dollars in millions)		2014			2013			2012
	Allowance for credit losses at beginning of period		$	527		$	619		$	879
	Provision for credit losses			170			121			-98
	Charge-offs, net of recoveries			-243			-213			-162
	Allowance for credit losses at end of period		$	454		$	527		$	619
	Charge-offs are shown net of $85 million, $87 million and $123 million of recoveries for fiscal 2014, 2013 and 2012, respectively.
	Allowance for Credit Losses and Finance Receivables by Portfolio Segment
	The following tables provide information related to our allowance for credit losses and finance receivables by portfolio segment for fiscal 2014 and 2013:
	Fiscal Year Ended March 31, 2014
	(Dollars in millions)		Retail Loan			Commercial			Dealer Products			Total
	Allowance for Credit Losses for Finance Receivables:
	Beginning Balance at April 1, 2013		$	333		$	5		$	107		$	445
	Charge-offs			-263			-2			-		$	-265
	Recoveries			64			1			-			65
	Provisions			162			-2			-19			141
	Ending Balance at March 31, 2014		$	296		$	2		$	88		$	386
	Ending Balance: Individually evaluated for impairment		$	-		$	-		$	31		$	31
	Ending Balance: Collectively evaluated for impairment		$	296		$	2		$	57		$	355
	Gross Finance Receivables:
	Ending Balance at March 31, 2014		$	49,410		$	439		$	15,925		$	65,774
	Ending Balance: Individually evaluated for impairment		$	-		$	-		$	208		$	208
	Ending Balance: Collectively evaluated for impairment		$	49,410		$	439		$	15,717		$	65,566
	Note 6 – Allowance for Credit Losses (Continued)
	The ending balance of gross finance receivables collectively evaluated for impairment includes approximately $322 million and $1 million of finance receivables within the retail loan and commercial portfolio segments, respectively, that are specifically identified as impaired. These amounts are aggregated with their respective portfolio segments when determining the allowance for credit losses as of March 31, 2014, as they are deemed to be insignificant for individual evaluation and we have determined that the allowance for credit losses would not be materially different if the amounts had been individually evaluated for impairment. The ending balance of gross finance receivables for the dealer products portfolio segment collectively evaluated for impairment includes $836 million and $144 million in receivables which are guaranteed by Toyota Motor Sales, U.S.A., Inc. (“TMS”) or private Toyota distributors, respectively. These receivables are related to certain Toyota and Lexus dealers and other third parties to which we provided financing at the request of TMS or such private distributors.
	Fiscal Year Ended March 31, 2013
	(Dollars in millions)		Retail Loan			Commercial			Dealer Products			Total
	Allowance for Credit Losses for Finance Receivables:
	Beginning Balance at April 1, 2012		$	395		$	10		$	119		$	524
	Charge-offs			-248			-1			-		$	-249
	Recoveries			70			1			-			71
	Provisions			116			-5			-12			99
	Ending Balance at March 31, 2013		$	333		$	5		$	107		$	445
	Ending Balance: Individually evaluated for
	impairment		$	-		$	-		$	33		$	33
	Ending Balance: Collectively evaluated for
	impairment		$	333		$	5		$	74		$	412
	Gross Finance Receivables:
	Ending Balance at March 31, 2013		$	47,808		$	369		$	14,995		$	63,172
	Ending Balance: Individually evaluated for
	impairment		$	-		$	-		$	241		$	241
	Ending Balance: Collectively evaluated for
	impairment		$	47,808		$	369		$	14,754		$	62,931
	The ending balance of gross finance receivables collectively evaluated for impairment includes approximately $415 million and $1 million of finance receivables within the retail loan and commercial portfolio segments, respectively, that are specifically identified as impaired. These amounts are aggregated with their respective portfolio segments when determining the allowance for credit losses as of March 31, 2013, as they are deemed to be insignificant for individual evaluation and we have determined that the allowance for credit losses would not be materially different if the amounts had been individually evaluated for impairment. The ending balance of gross finance receivables for the dealer products portfolio segment collectively evaluated for impairment includes $812 million and $145 million in receivables which are guaranteed by TMS or private Toyota distributors, respectively. These receivables are related to certain Toyota and Lexus dealers and other third parties to which we provided financing at the request of TMS or such private distributors.
	Note 6 – Allowance for Credit Losses (Continued)
	Past Due Finance Receivables and Investments in Operating Leases
	(Dollars in millions)						31-Mar-14				31-Mar-13
	Aggregate balances 60 or more days past due:
		Finance receivables							$	125		$	119
		Operating leases								36			36
	Total								$	161		$	155
	Substantially all retail, direct finance lease, and operating lease receivables do not involve recourse to the dealer in the event of customer default. Finance and operating lease receivables 60 or more days past due include accounts in bankruptcy and exclude accounts for which vehicles have been repossessed.
	Past Due Finance Receivables by Class
	The following tables summarize the aging of finance receivables by class as of March 31, 2014 and 2013:
	(Dollars in millions)	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Finance Receivables		90 Days or Greater Past Due and Accruing
	As of March 31, 2014
	Retail Loan	$	459	$	90	$	33	$	582	$	48,828	$	49,410	$	33
	Commercial		6		1		-		7		432		439		-
	Wholesale		-		-		-		-		9,436		9,436		-
	Real estate		4		1		-		5		4,653		4,658		-
Working capital		-		-		-		-		1,831		1,831		-
Total	$	469	$	92	$	33	$	594	$	65,180	$	65,774	$	33
(Dollars in millions)	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Finance Receivables		90 Days or Greater Past Due and Accruing
As of March 31, 2013
Retail Loan	$	454	$	87	$	31	$	572	$	47,236	$	47,808	$	31
Commercial		6		1		-		7		362		369		-
Wholesale		-		-		-		-		8,689		8,689		-
Real estate		-		-		-		-		4,580		4,580		-
Working capital		-		-		-		-		1,726		1,726		-
Total	$	460	$	88	$	31	$	579	$	62,593	$	63,172	$	31

Derivatives_Hedging_Activities

Derivatives, Hedging Activities, and Interest Expense	12 Months Ended
	Mar. 31, 2014
Derivatives, Hedging Activities and Interest Expense [Abstract]	'
Derivatives, Hedging Activities and Interest Expense	'
	Note 7 – Derivatives, Hedging Activities and Interest Expense
	Derivative Instruments
	Our liabilities consist mainly of fixed and floating rate debt, denominated in various currencies, which we issue in the global capital markets, while our assets consist primarily of U.S. dollar denominated, fixed rate receivables.  We enter into interest rate swaps and foreign currency swaps to hedge the interest rate and foreign currency risks that result from the different characteristics of our assets and liabilities.  Our use of derivative transactions is intended to reduce long-term fluctuations in cash flows and fair value adjustments of assets and liabilities caused by market movements. All of our derivative activities are authorized and monitored by our Asset-Liability Committee which provides a framework for financial controls and governance to manage market risk.
	Credit Risk Related Contingent Features
	Certain of our derivative contracts are governed by International Swaps and Derivatives Association Master Agreements. Substantially all of these ISDA Master Agreements contain reciprocal ratings triggers providing either party with an option to terminate the agreement at market value in the event of a ratings downgrade of the other party below a specified threshold. As of March 31, 2014, we have daily valuation and collateral exchange arrangements with all of our counterparties. Our collateral agreements with substantially all our counterparties include a zero threshold, full collateralization arrangement.
	The aggregate fair value of derivative instruments that contain credit risk related contingent features that were in a net liability position at March 31, 2014 was $6 million, excluding adjustments made for our own non-performance risk. Since we fully collateralize without regard to credit ratings, we would not be required to post additional collateral to the counterparties with which we were in a net liability position at March 31, 2014, even if our credit ratings were to decline. In order to settle all derivative instruments that were in a net liability position at March 31, 2014, excluding adjustments made for our own non-performance risk, we would be required to pay $6 million.
	Note 7 – Derivatives, Hedging Activities and Interest Expense (Continued)
	Derivative Activity Impact on Financial Statements
	The following tables show the financial statement line item and amount of our derivative assets and liabilities that are reported in the Consolidated Balance Sheet at March 31, 2014 and 2013.
				Hedge accounting						Non-hedge				Total
	As of March 31, 2014			derivatives						accounting derivatives
				Notional			Fair			Notional		Fair		Notional		Fair
	(Dollars in millions)							value					value				value
	Other assets
	Interest rate swaps			$	465		$	25		$	25,942	$	336	$	26,407	$	361
	Foreign currency swaps				852			342			7,374		532		8,226		874
		Total		$	1,317		$	367		$	33,316	$	868	$	34,633	$	1,235
	Counterparty netting and collateral																-1,186
		Carrying value of derivative contracts – Other assets														$	49
	Other liabilities
	Interest rate swaps			$	-		$	-		$	57,689	$	553	$	57,689	$	553
	Interest rate caps				-			-			50		-		50		-
	Foreign currency swaps				157			14			3,822		238		3,979		252
		Total		$	157		$	14		$	61,561	$	791	$	61,718	$	805
	Counterparty netting and collateral																-799
		Carrying value of derivative contracts – Other liabilities														$	6
	As of March 31, 2014, we held collateral of $718 million which offset derivative assets, and posted collateral of $331 million which offset derivative liabilities. We also held collateral of $5 million which we did not use to offset derivative assets, and we posted collateral of $3 million which we did not use to offset derivative liabilities.
	Note 7 – Derivatives, Hedging Activities and Interest Expense (Continued)
				Hedge accounting						Non-hedge				Total
	As of March 31, 2013			derivatives						accounting derivatives
				Notional			Fair			Notional		Fair		Notional		Fair
	(Dollars in millions)							value					value				value
	Other Assets
	Interest rate swaps			$	465		$	44		$	22,336	$	536	$	22,801	$	580
	Foreign currency swaps				1,246			491			7,498		648		8,744		1,139
		Total		$	1,711		$	535		$	29,834	$	1,184	$	31,545	$	1,719
	Counterparty netting and collateral																-1,661
		Carrying value of derivative contracts – Other assets														$	58
	Other liabilities
	Interest rate swaps			$	-		$	-		$	51,342	$	766	$	51,342	$	766
	Interest rate caps				-			-			50		-		50		-
	Foreign currency swaps				790			29			3,103		102		3,893		131
	Embedded derivatives				-			-			64		12		64		12
		Total		$	790		$	29		$	54,559	$	880	$	55,349	$	909
	Counterparty netting and collateral																-892
		Carrying value of derivative contracts – Other liabilities														$	17
	As of March 31, 2013, we held collateral of $953 million which offset derivative assets, and posted collateral of $184 million which offset derivative liabilities. We also held collateral of $3 million which we did not use to offset derivative assets, and we posted collateral of $6 million which we did not use to offset derivative liabilities.
	Note 7 – Derivatives, Hedging Activities and Interest Expense (Continued)
	The following table summarizes the components of interest expense, including the location and amount of gains or losses on derivative instruments and related hedged items, for fiscal 2014, 2013 and 2012 as reported in our Consolidated Statement of Income:
					Years ended March 31,
	(Dollars in millions)			2014			2013			2012
	Interest expense on debt			$	1,262		$	1,330		$	1,677
	Interest expense on hedge accounting derivatives				-85			-103			-221
	Interest expense on non-hedge accounting foreign currency
		swaps			-202			-258			-386
	Interest expense on non-hedge accounting interest rate swaps				210			359			606
			Interest expense on debt and derivatives		1,185			1,328			1,676
	Loss (gain) on hedge accounting derivatives:
		Interest rate swaps			20			15			-6
		Foreign currency swaps			8			274			23
			Loss on hedge accounting derivatives		28			289			17
	Less hedged item: change in fair value of fixed rate debt				-31			-299			-38
			Ineffectiveness related to hedge accounting derivatives		-3			-10			-21
(Gain) loss from foreign currency transactions and non-hedge
accounting derivatives:
		(Gain) on foreign currency transactions		-45			-430			-182
		Loss (gain) on foreign currency swaps		185			431			-84
		Loss (gain) on interest rate swaps		18			-379			-89
Total interest expense			$	1,340		$	940		$	1,300
Interest expense on debt and derivatives represents net interest settlements and changes in accruals. Gains and losses from hedge accounting derivatives and foreign currency transactions exclude net interest settlements and changes in accruals.
The following table summarizes the relative fair value allocation of derivative credit valuation adjustments within interest expense:
		Years ended March 31,
(Dollars in millions)		2014			2013			2012
Gains related to hedge accounting derivatives		$	-		$	-2		$	-3
Gains on non-hedge accounting foreign currency swaps			-			-			-6
Total credit valuation adjustment allocated to interest expense		$	-		$	-2		$	-9

Other_Assets_and_Other_Liabili

Other Assets and Other Liabilities	12 Months Ended
	Mar. 31, 2014
Other Assets And Other Liabilties [Abstract]	'
Other Assets and Other Liabilties Disclosure	'
	Note 8 – Other Assets and Other Liabilities
	Other assets and other liabilities consisted of the following:
	(Dollars in millions)	31-Mar-14		31-Mar-13
	Other assets:
	Notes receivable from affiliates	$	1,172	$	931
	Used vehicles held for sale		139		265
	Deferred charges		116		120
	Income taxes receivable		-		13
	Derivative assets		49		58
	Other assets		394		353
	Total other assets	$	1,870	$	1,740
	Other liabilities:
	Unearned insurance premiums and contract revenues	$	1,665	$	1,528
	Derivative liabilities		6		17
	Accounts payable and accrued expenses		746		685
	Deferred income		332		255
	Other liabilities		139		192
	Total other liabilities	$	2,888	$	2,677
	The change in used vehicles held for sale includes non-cash investing activities of $147 million, $183 million and $80 million at March 31, 2014, 2013 and 2012, respectively.

Debt

Debt	12 Months Ended
	Mar. 31, 2014
Debt [Abstract]	'
Debt	'
	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)	2014		2013		2014		2013
	Commercial paper	$	27,709	$	24,590	0.18	%	0.24	%
	Unsecured notes and loans payable		49,075		46,707	1.99	%	2.19	%
	Secured notes and loans payable		8,158		7,009	0.54	%	0.6	%
	Carrying value adjustment		425		526
	Total debt	$	85,367	$	78,832	1.26	%	1.43	%
	The commercial paper balance includes unamortized premiums and discounts. As of March 31, 2014, our commercial paper had a weighted average remaining maturity of 87 days, while our notes and loans payable mature on various dates through fiscal 2047. Weighted average contractual interest rates are calculated based on original notional or par value before consideration of premium or discount.
	The carrying value of our unsecured notes and loans payable at March 31, 2014 included $17.6 billion of unsecured floating rate debt with contractual interest rates ranging from 0 percent to 3.3 percent and $31.9 billion of unsecured fixed rate debt with contractual interest rates ranging from 0.5 percent to 9.4 percent. The carrying value of our unsecured notes and loans payable at March 31, 2013 included $16.8 billion of unsecured floating rate debt with contractual interest rates ranging from 0 percent to 6.0 percent and $30.4 billion of unsecured fixed rate debt with contractual interest rates ranging from 0.5 percent to 9.4 percent. Upon issuance of fixed rate notes, we generally elect to enter into interest rate swaps to convert fixed rate payments on notes to floating rate payments.
	Included in unsecured notes and loans payable are notes and loans denominated in various foreign currencies, unamortized premiums and discounts and the effects of foreign currency transaction gains and losses on non-hedged or de-designated foreign currency denominated notes and loans payable. At March 31, 2014 and 2013, the carrying values of these foreign currency denominated notes payable were $12.6 billion and $13.2 billion, respectively. Concurrent with the issuance of these foreign currency unsecured notes, we entered into currency swaps in the same notional amount to convert non-U.S. currency payments to U.S. dollar denominated payments.
	Our secured notes and loans payable are denominated in U.S. dollars and consist of both fixed and variable rate debt with interest rates ranging from 0.4 percent to 1.6 percent at March 31, 2014 and 0.4 percent to 1.9 percent at March 31, 2013. Secured notes and loans are issued by on-balance sheet securitization trusts, as further discussed in Note 10 – Variable Interest Entities. These notes are repayable only from collections on the underlying pledged retail finance receivables and the beneficial interests in investments in operating leases and from related credit enhancements.
	Note 9 – Debt (Continued)
	The carrying value adjustment on debt represents the effects of fair value adjustments to debt in hedging relationships, accrued redemption premiums, and the unamortized fair value adjustments on the hedged item for terminated fair value hedge accounting relationships. The carrying value adjustment on debt decreased by $101 million at March 31, 2014 compared to March 31, 2013 primarily as a result of a stronger U.S. dollar relative to certain other currencies in which some of our debt is denominated.
	Scheduled maturities of our debt portfolio are summarized below (dollars in millions). Actual repayment of secured debt will vary based on the repayment activity on the related pledged assets.
		Future
	Years ending March 31,	debt maturities
	2015	$	44,944
	2016		13,718
	2017		7,887
	2018		8,117
	2019		3,506
	Thereafter		7,195
	Total debt	$	85,367
	Interest payments on commercial paper and debt, including net settlements on interest rate swaps, were $1.1 billion, $1.3 billion and $1.6 billion in fiscal 2014, 2013 and 2012, respectively.

Variable_Interest_Entities

Variable Interest Entities	12 Months Ended
	Mar. 31, 2014
Variable Interest Entities [Abstract]	'
Variable Interest Entities	'
	Note 10 – Variable Interest Entities
	Consolidated Variable Interest Entities
	We use one or more special purpose entities that are considered Variable Interest Entities to issue asset-backed securities to third party bank-sponsored asset-backed securitization vehicles and to investors in securitization transactions. The securities issued by these VIEs are backed by the cash flows related to retail finance receivables and beneficial interests in investments in operating leases (“Securitized Assets”). We hold variable interests in the VIEs that could potentially be significant to the VIEs. We determined that we are the primary beneficiary of the securitization trusts because (i) our servicing responsibilities for the Securitized Assets give us the power to direct the activities that most significantly impact the performance of the VIEs, and (ii) our variable interests in the VIEs give us the obligation to absorb losses and the right to receive residual returns that could potentially be significant.
	The following tables show the assets and liabilities related to our VIE securitization transactions that were included in our financial statements as of March 31, 2014 and 2013:
		31-Mar-14
				VIE Assets							VIE Liabilities
				Gross		Net
	(Dollars in millions)	Restricted Cash		Securitized Assets			Securitized Assets		Other Assets		Debt		Other Liabilities
	Retail finance receivables	$	624	$	9,633		$	9,501	$	3	$	8,146	$	2
	Investments in operating leases		20		248			156		4		12		-
	Total	$	644	$	9,881		$	9,657	$	7	$	8,158	$	2
		31-Mar-13
				VIE Assets							VIE Liabilities
				Gross		Net
	(Dollars in millions)	Restricted Cash		Securitized Assets			Securitized Assets		Other Assets		Debt		Other Liabilities
	Retail finance receivables	$	458	$	7,669		$	7,556	$	3	$	6,738	$	1
	Investment in operating leases		33		630			434		9		271		-
	Total	$	491	$	8,299		$	7,990	$	12	$	7,009	$	1
	Note 10 – Variable Interest Entities (Continued)
	Restricted cash shown in the table above represents collections from the underlying Securitized Assets and certain reserve deposits held by TMCC for the VIEs and is included as part of the Restricted Cash and Cash Equivalents on our Consolidated Balance Sheet. Gross Securitized Assets represent finance receivables and beneficial interests in investments in operating leases securitized for the asset-backed securities issued. Net Securitized Assets are presented net of deferred fees and costs, deferred income, accumulated depreciation and the allowance for credit losses. Other Assets represent used vehicles held for sale that were repossessed by or returned to TMCC for the benefit of the VIEs. The related debt of these consolidated VIEs is presented net of $1,169 million and $466 million of securities retained by TMCC at March 31, 2014 and 2013, respectively. Other Liabilities represents accrued interest on the debt of the consolidated VIEs.
	The assets of the VIEs and the restricted cash held by TMCC serve as the sole source of repayment for the asset-backed securities issued by these entities. Investors in the notes issued by the VIEs do not have recourse to us or our other assets, with the exception of customary representation and warranty repurchase provisions and indemnities.
	As the primary beneficiary of these entities, we are exposed to credit, residual value, interest rate, and prepayment risk from the Securitized Assets in the VIEs. However, our exposure to these risks did not change as a result of the transfer of the assets to the VIEs. We may also be exposed to interest rate risk arising from the secured notes issued by the VIEs.
	In addition, we entered into interest rate swaps with certain special purpose entities that issue variable rate debt. Under the terms of these swaps, the special purpose entities are obligated to pay TMCC a fixed rate of interest on certain payment dates in exchange for receiving a floating rate of interest on notional amounts equal to the outstanding balance of the secured debt. This arrangement enables the special purpose entities to mitigate the interest rate risk inherent in issuing variable rate debt that is secured by fixed rate Securitized Assets.
	The transfers of the Securitized Assets to the special purpose entities in our securitizations are considered to be sales for legal purposes. However, the Securitized Assets and the related debt remain on our Consolidated Balance Sheet. We recognize financing revenue on the Securitized Assets and interest expense on the secured debt issued by the special purpose entities. We also maintain an allowance for credit losses on the Securitized Assets to cover estimated probable credit losses using a methodology consistent with that used for our non-securitized asset portfolio. The interest rate swaps between TMCC and the special purpose entities are considered intercompany transactions and therefore are eliminated in our consolidated financial statements.
	Non-consolidated Variable Interest Entities
	We provide lending to Toyota dealers through the Toyota Dealer Investment Group's Dealer Capital Program (“TDIG Program”) operated by our affiliate, TMS, which has an equity position in these dealerships.  Dealers participating in this program have been determined to be VIEs. We do not consolidate the dealerships in this program as we are not the primary beneficiary and any exposure to loss is limited to the amount of the credit facility.  At March 31, 2014 and 2013, amounts due from these dealers that are classified as finance receivables, net in the Consolidated Balance Sheet and revenues received during each of fiscal 2014, 2013 and 2012 from these dealers under the TDIG Program were not significant.
	We also have other lending relationships and joint ventures which have been determined to be VIEs but these relationships are not consolidated as we are not the primary beneficiary. All amounts under these relationships were not significant.

Liquidity_Facilities_and_Lette

Liquidity Facilities and Letters of Credit	12 Months Ended
	Mar. 31, 2014
Liquidity Facilities and Letters of Credit [Abstract]	'
Liquidity Facilities and Letters of Credit	'
	Note 11 – Liquidity Facilities and Letters of Credit
	For additional liquidity purposes, we maintain syndicated credit facilities with certain banks.
	364 Day Credit Agreement, Three Year Credit Agreement and Five Year Credit Agreement
	In fiscal 2013, TMCC, TCPR and other Toyota affiliates were parties to a $3.8 billion 364 day syndicated bank credit facility, a $3.8 billion three year syndicated bank credit facility and a $3.8 billion five year syndicated bank credit facility, expiring in fiscal 2014, 2016, and 2018, respectively. In November 2013, these agreements were terminated and TMCC, TCPR and other Toyota affiliates entered into a $4.3 billion 364 day syndicated bank credit facility, a $4.3 billion three year syndicated bank credit facility and a $4.3 billion five year syndicated bank credit facility, expiring in fiscal 2015, 2017, and 2019, respectively.
	The ability to make draws is subject to covenants and conditions customary in transactions of this nature, including negative pledge provisions, cross-default provisions and limitations on consolidations, mergers and sales of assets. These agreements may be used for general corporate purposes and none were drawn upon as of March 31, 2014 and 2013.
	Other Unsecured Credit Agreements
	TMCC has entered into additional unsecured credit facilities with various banks. As of March 31, 2014, TMCC had committed bank credit facilities totaling $5.7 billion of which $3.3 billion, $2.0 billion and $400 million mature in fiscal 2015, 2016 and 2017, respectively.
	These credit agreements contain covenants, and conditions customary in transactions of this nature, including negative pledge provisions, cross-default provisions and limitations on consolidations, mergers and sales of assets. These credit facilities were not drawn upon as of March 31, 2014 and 2013. We are in compliance with the covenants and conditions of the credit agreements described above.

Pension_and_Other_Benefits

Pension and Other Benefits	12 Months Ended
	Mar. 31, 2014
Pension and Other Benefits [Abstract]	'
Pension and Other Benefits	'
	Note 12 – Pension and Other Benefit Plans
	We are a participating employer in certain retirement and post-employment health care, life insurance, and other benefits sponsored by TMS, an affiliate. Costs of each plan are generally allocated to us by TMS based on relative payroll costs associated with participating or eligible employees at TMCC as compared to the plan as a whole.
	Defined Benefit Plan
	Our employees are generally eligible to participate in the Toyota Motor Sales, U.S.A., Inc. Pension Plan sponsored by TMS commencing on the first day of the month following hire and are vested after 5 years of continuous employment. Benefits payable under this non-contributory defined benefit pension plan are based, generally, upon the employees' years of credited service (up to a maximum of 25), the highest average annual compensation (as defined in the plan, which excludes, among other items, bonus/gifts) for any 60 consecutive month period out of the last 120 months of employment (the “Applicable Years”), and one-half of the average eligible bonus/gift payments for the Applicable Years, reduced by an estimated amount of social security benefits.
	Pension costs allocated to TMCC for our employees in the TMS pension plan were $15 million, $8 million and $7 million for fiscal 2014, 2013 and 2012, respectively.
	Defined Contribution Plan
	Employees meeting certain eligibility requirements, as defined in the plan documents, may participate in the Toyota Motor Sales Savings Plan sponsored by TMS. Participants may elect to contribute up to 30 percent of their eligible pre-tax compensation, subject to Internal Revenue Code limitations. We match 66 2/3 cents for each dollar the participant contributes, up to 6 percent of base pay. Participants are vested 25 percent each year with respect to our contributions and are fully vested after four years.
	TMCC employer contributions to the TMS savings plan were $7 million for fiscal 2014, 2013 and 2012.
	Other Post-Retirement Benefit Plans
	In addition, employees are generally eligible to participate in various health care, life insurance and other post-retirement benefits sponsored by TMS. In order to be eligible for these benefits, the employee must retire with at least ten years of service and in some cases be at least 55 years of age.
	Other post-retirement benefit costs allocated to TMCC were $16 million, $15 million and $13 million for fiscal 2014, 2013 and 2012, respectively.

Income_Tax_Provision

Income Tax Provision	12 Months Ended
	Mar. 31, 2014
Income Tax Provision [Abstract]	'
Income Tax Provision	'
	Note 13 – Income Tax Provision
	The provision for income taxes consisted of the following:
		Years ended March 31,
	(Dollars in millions)	2014		2013		2012
	Current
	Federal	$	-24	$	-15	$	-33
	State		-3		41		7
	Foreign		8		6		9
	Total current		-19		32		-17
	Deferred
	Federal		460		721		830
	State		54		69		123
	Foreign		2		2		1
	Total deferred		516		792		954
	Provision for income taxes	$	497	$	824	$	937
	A reconciliation between the U.S. federal statutory tax rate and the effective tax rate is as follows:
		Years ended March 31,
		2014		2013		2012
	Provision for income taxes at U.S. federal statutory tax rate	35	%	35	%	35	%
	State and local taxes (net of federal tax benefit)	3.1	%	3.2	%	3.4	%
	Other	-1.4	%	-	%	0.3	%
	Effective tax rate	36.7	%	38.2	%	38.7	%
	For fiscal 2014 and 2013, the amounts in Other in the table above include benefits from federal plug-in and electric vehicle credits offset by adjustments for the differences between the income tax accrued in the prior year as compared with the actual liability on the income tax returns as filed. For fiscal 2012, the amounts in Other included benefits from state hybrid vehicle credits and adjustments for the differences between the income tax accrued in the prior year as compared with the actual liability on the income tax returns as filed.
	Note 13 – Income Tax Provision (Continued)
	The net deferred income tax liabilities, by tax jurisdiction, are as follows:
		March 31,
	(Dollars in millions)	2014		2013
	Federal	$	6,217	$	5,763
	State		529		475
	Foreign		1		-2
	Net deferred income tax liability	$	6,747	$	6,236
	Our net deferred income tax liability consists of the following deferred tax liabilities and assets:
		March 31,
	(Dollars in millions)	2014		2013
	Liabilities:
	Lease transactions	$	7,133	$	6,509
	State taxes		482		446
	Mark-to-market of investments in marketable securities
	and derivatives		138		210
	Other		295		295
	Deferred tax liabilities	$	8,048	$	7,460
	Assets:
	Provision for credit and residual value losses		310		347
	Deferred costs and fees		211		167
	Net operating loss and tax credit carryforwards		742		679
	Other		56		47
	Deferred tax assets		1,319		1,240
	Valuation allowance		-18		-16
	Net deferred tax assets	$	1,301	$	1,224
	Net deferred income tax liability	$	6,747	$	6,236
	We have deferred tax assets related to our cumulative federal net operating loss carryforwards of $591 million and $552 million available at March 31, 2014 and 2013, respectively. The federal net operating loss carryforwards will expire beginning in fiscal 2029 through fiscal 2034. At March 31, 2014, we have a deferred tax asset of $56 million for state tax net operating loss carryforwards which will expire in fiscal 2015 through fiscal 2034. At March 31, 2013, we had deferred tax assets of $55 million for state tax net operating loss carryforwards which will expire in fiscal 2014 through fiscal 2032.
	Note 13 – Income Tax Provision (Continued)
	In addition, at March 31, 2014 and 2013, we have deferred tax assets for federal and state hybrid credits of $80 million and $58 million, respectively. The deferred tax assets related to state tax net operating losses and state hybrid credits are reduced by a valuation allowance of $18 million at March 31, 2014. The deferred tax assets related to state tax net operating losses and charitable contributions were reduced by a valuation allowance of $16 million at March 31, 2013. Apart from the valuation allowance, we believe that the remaining deferred tax assets will be realized in full. We received a net tax refund of $30 million for fiscal 2014 and paid net taxes of $21 million in fiscal 2013.
	We have made an assertion of permanent reinvestment of earnings from our foreign subsidiary; as a result, U.S. taxes have not been provided for unremitted earnings of our foreign subsidiary. At March 31, 2014 these unremitted earnings totaled $184 million. Determination of the amount of the deferred tax liability is not practicable, and accordingly no estimate of the unrecorded deferred tax liability is provided. Although there are no foreseeable events causing repatriation of earnings, possible examples may include but not be limited to parent company capital needs or exiting the business in the foreign country.
	At March 31, 2014, we had a payable of $11 million for our share of the income tax in those states where we filed consolidated or combined returns with TMA and its subsidiaries. At March 31, 2013, the receivable for our share of the income tax in those states where we filed consolidated or combined returns with TMA and its subsidiaries was $7 million. At March 31, 2014, we had a receivable of less than $1 million for federal and state income tax from TMCC affiliated companies. At March 31, 2013, we had a receivable of $1.1 million for federal and state income tax from TMCC affiliated companies. Such TMCC affiliated companies include TFSA, TFSB, and Toyota Financial Services Securities USA Corporation.
	The guidance for the accounting and reporting for income taxes requires us to assess tax positions in cases where the interpretation of the tax law may be uncertain.
	The change in unrecognized tax benefits in fiscal 2014, 2013 and 2012 are as follows:
		March 31,
	(Dollars in millions)	2014		2013		2012
	Balance at beginning of the year	$	7	$	8	$	6
	Increases related to positions taken during the prior years		-		-		2
	Increases related to positions taken during the current year		-		1		-
	Decreases related to positions taken during the prior years		-1		-		-
Settlements		-		-2		-
Balance at end of year	$	6	$	7	$	8
At March 31, 2014 and 2013, approximately $1 million of the respective unrecognized tax benefits would, if recognized, have an effect on the effective tax rate. At March 31, 2012, approximately $2 million of the respective unrecognized tax benefits at each year end would, if recognized, have an effect on the effective tax rate. The deductibility of the remaining amount of the respective unrecognized tax benefits is highly certain, but there is uncertainty about the timing of such deductibility. The decrease in unrecognized tax benefits during fiscal 2014 did not have an effect on the effective tax rate. We do not have any positions for which it is reasonably possible that the total amounts of unrecognized tax benefits will significantly increase or decrease within 12 months.
Note 13 – Income Tax Provision (Continued)
We accrue interest, if applicable, related to uncertain income tax positions in interest expense. Statutory penalties, if applicable, accrued with respect to uncertain income tax positions are recognized as an addition to the income tax liability. For each of fiscal 2014, 2013, and 2012, less than $1 million was accrued for interest and no penalties were accrued.
As of March 31, 2014, we remain under IRS examination for fiscal 2014, 2013, and 2012. The IRS examination for fiscal 2010 was concluded in the first quarter of fiscal 2012. The IRS examination for fiscal 2011 was concluded in the first quarter of fiscal 2014.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Mar. 31, 2014
Commitments and Contingencies [Abstract]	'
Commitments and Contingencies	'
	Note 14 – Commitments and Contingencies
	Commitments and Guarantees
	We have entered into certain commitments and guarantees for which the maximum unfunded amounts are summarized in the table below:
	(Dollars in millions)			31-Mar-14		31-Mar-13
	Commitments:
		Credit facilities commitments with
			vehicle and industrial equipment dealers	$	1,295	$	1,106
		Minimum lease commitments			62		74
	Total commitments				1,357		1,180
		Guarantees of affiliate pollution control and solid waste
			disposal bonds		100		100
	Total commitments and guarantees			$	1,457	$	1,280
	Wholesale financing demand note facilities are not considered to be contractual commitments as they are not binding arrangements under which TMCC is required to perform.
	We are party to a 15-year lease agreement, which expires in 2018, with TMS for our headquarters location in the TMS headquarters complex in Torrance, California. Total rental expense including payments to affiliates was $25 million for fiscal 2014, and $22 million and $23 million for fiscal 2013 and 2012, respectively. Minimum lease commitments include $30 million and $37 million for facilities leases with affiliates at March 31, 2014 and 2013, respectively. At March 31, 2014, minimum future commitments under lease agreements to which we are a lessee, including those under the TMS lease, are as follows (dollars in millions):
				Future minimum
	Years ending March 31,			lease payments
	2015			$	19
	2016				18
	2017				13
	2018				8
	2019				3
	Thereafter				1
	Total			$	62
	Note 14 – Commitments and Contingencies (Continued)
	Commitments
	We provide fixed and variable rate credit facilities to vehicle and industrial equipment dealers. These credit facilities are typically used for facilities refurbishment, real estate purchases, and working capital requirements. These loans are generally collateralized with liens on real estate, vehicle inventory, and/or other dealership assets, as appropriate. We obtain a personal guarantee from the vehicle or industrial equipment dealer or a corporate guarantee from the dealership when deemed prudent. Although the loans are typically collateralized or guaranteed, the value of the underlying collateral or guarantees may not be sufficient to cover our exposure under such agreements. Our credit facility pricing reflects market conditions, the competitive environment, the level of dealer support required for the facility, and the credit worthiness of each dealer. Amounts drawn under these facilities are reviewed for collectability on a quarterly basis, in conjunction with our evaluation of the allowance for credit losses. We also provide financing to various multi-franchise dealer organizations, often as part of a lending consortium, for wholesale, working capital, real estate, and business acquisitions.
	Guarantees and Other Contingencies
	TMCC has guaranteed bond obligations totaling $100 million in principal that were issued by Putnam County, West Virginia and Gibson County, Indiana to finance the construction of pollution control facilities at manufacturing plants of certain TMCC affiliates. The bonds mature in the following fiscal years ending March 31: 2028 - $20 million; 2029 - $50 million; 2030 - $10 million; 2031 - $10 million; and 2032 - $10 million. TMCC would be required to perform under the guarantees in the event of non-payment on the bonds and other related obligations. TMCC is entitled to reimbursement by the affiliates for any amounts paid. TMCC receives an annual fee of $78 thousand for guaranteeing such payments. TMCC has not been required to perform under any of these affiliate bond guarantees as of March 31, 2014 and 2013.
	Indemnification
	In the ordinary course of business, we enter into agreements containing indemnification provisions standard in the industry related to several types of transactions, including, but not limited to, debt funding, derivatives, securitization transactions, and our vendor and supplier agreements. Performance under these indemnities would occur upon a breach of the representations, warranties or covenants made or given, or a third party claim. In addition, we have agreed in certain debt and derivative issuances, and subject to certain exceptions, to gross-up payments due to third parties in the event that withholding tax is imposed on such payments. In addition, certain of our funding arrangements may require us to pay lenders for increased costs due to certain changes in laws or regulations. Due to the difficulty in predicting events which could cause a breach of the indemnification provisions or trigger a gross-up or other payment obligation, we are not able to estimate our maximum exposure to future payments that could result from claims made under such provisions. We have not made any material payments in the past as a result of these provisions, and as of March 31, 2014, we determined that it is not probable that we will be required to make any material payments in the future. As of March 31, 2014 and 2013, no amounts have been recorded under these indemnifications.
	Note 14 – Commitments and Contingencies (Continued)
	Litigation and Governmental Proceedings
	Various legal actions, governmental proceedings and other claims are pending or may be instituted or asserted in the future against us with respect to matters arising in the ordinary course of business. Certain of these actions are or purport to be class action suits, seeking sizeable damages and/or changes in our business operations, policies and practices. Certain of these actions are similar to suits that have been filed against other financial institutions and captive finance companies. We perform periodic reviews of pending claims and actions to determine the probability of adverse verdicts and resulting amounts of liability. We establish accruals for legal claims when payments associated with the claims become probable and the costs can be reasonably estimated. When we are able, we also determine estimates of reasonably possible loss or range of loss, whether in excess of any related accrued liability or where there is no accrued liability. Given the inherent uncertainty associated with legal matters, the actual costs of resolving legal claims and associated costs of defense may be substantially higher or lower than the amounts for which accruals have been established. Based on available information and established accruals, we do not believe it is reasonably possible that the results of these proceedings, either individually or in the aggregate, will have a material adverse effect on our consolidated financial condition or results of operations.
	The Consumer Financial Protection Bureau (the “CFPB”), together with the U.S. Department of Justice (the “DOJ”), have requested us to provide certain information about our purchases of auto loans from dealers and discretionary pricing practices. Neither the CFPB nor the DOJ has alleged any wrongdoing on our part. At this time, we are uncertain whether we will be subject to regulatory actions, and given the preliminary state of this inquiry, we are unable to estimate the amount or range of potential loss in the event any such actions are taken.

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Mar. 31, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Note 15 – Related Party Transactions
	The tables below summarize amounts included in our Consolidated Statement of Income and in our Consolidated Balance Sheet under various related party agreements or relationships:
				Years ended March 31,
	(Dollars in millions)			2014			2013			2012
	Net financing revenues:
		Manufacturers’ subvention support and other revenues		$	994		$	940		$	949
		Credit support fees incurred		$	-82		$	-72		$	-33
		Foreign exchange loss on loans payable to affiliates		$	-		$	-39		$	-4
		Interest expense on loans payable to affiliates		$	-3		$	-6		$	-49
	Insurance earned premiums and contract revenues:
		Affiliate insurance premiums and contract revenues		$	131		$	161		$	216
	Investments and other income, net:
		Interest earned on notes receivable from affiliates		$	6		$	6		$	3
	Expenses:
		Shared services charges and other expenses		$	61		$	64		$	67
		Employee benefits expense		$	38		$	30		$	27
	Note 15 – Related Party Transactions (Continued)
	(Dollars in millions)			31-Mar-14				31-Mar-13
	Assets:
	Investments in marketable securities
		Investments in affiliates' commercial paper			$	-		$	2
	Finance receivables, net
		Accounts receivable from affiliates			$	74		$	22
		Direct finance receivables from affiliates			$	6		$	6
		Notes receivable under home loan programs			$	15		$	18
		Deferred retail origination costs paid to affiliates			$	1		$	-
		Deferred retail subvention income from affiliates			$	-768		$	-699
	Investments in operating leases, net
		Leases to affiliates			$	7		$	7
		Deferred lease subvention income from affiliates			$	-806		$	-604
	Other assets
		Notes receivable from affiliates			$	1,172		$	931
		Other receivables from affiliates			$	2		$	1
		Subvention support receivable from affiliates			$	159		$	88
	Liabilities:
	Other liabilities
		Unearned affiliate insurance premiums and contract revenues			$	244		$	235
		Accounts payable to affiliates			$	216		$	192
		Notes payable to affiliate			$	22		$	48
	Shareholder’s Equity:
	Dividends paid				$	665		$	1,487
	Stock-based compensation				$	2		$	2
	Note 15 – Related Party Transactions (Continued)
	Financing Support Arrangements with Affiliates
	TMCC is party to a credit support agreement with TFSC (the “TMCC Credit Support Agreement”). The agreement requires TFSC to maintain certain ownership, net worth maintenance, and debt service provisions in respect of TMCC, but is not a guarantee by TFSC of any securities or obligations of TMCC. In conjunction with this credit support agreement, TMCC has agreed to pay TFSC a semi-annual fee based on a fixed rate applied to the weighted average outstanding amount of securities entitled to credit support.  Credit support fees incurred under this agreement were $82 million, $72 million, and $33 million for fiscal 2014, 2013, and 2012, respectively.
	Toyota Credit de Puerto Rico Corp. (“TCPR”) is the beneficiary of a credit support agreement with TFSC containing provisions similar to the TMCC Credit Support Agreement described above.
	In addition, TMCC receives and provides financing support from TFSC and other affiliates in the form of promissory notes, conduit finance agreements and various loan and credit facility agreements. Total financing support received and provided, along with the amounts currently outstanding under those agreements, is summarized below. All foreign currency amounts have been translated at the exchange rates in effect as of March 31, 2014.
	Financing Support Provided by Parent and Affiliates (amounts in millions):
			Financing available			Amounts outstanding (USD) at
	Affiliate		to TMCC		31-Mar-14			31-Mar-13
	Toyota Credit Canada Inc.		CAD	1,500		$	-		$	-
	Toyota Motor Finance (Netherlands) B.V.		Euro	1,000			-			-
	Toyota Financial Services Americas Corporation		USD	200			22			48
	Toyota Finance Australia Limited		USD	1,000			-			-
	Total					$	22		$	48
	Financing Support Provided to Affiliates (amounts in millions):
			Financing made			Amounts outstanding (USD) at
	Affiliate		available by TMCC			31-Mar-14			31-Mar-13
	Toyota Financial Savings Bank		USD	400		$	40		$	35
	Toyota Credit Canada Inc.		CAD	2,500			-			-
	Toyota Motor Finance (Netherlands) B.V.		Euro	1,000			827			419
	Toyota Financial Services Americas Corporation		USD	200			-			-
	Toyota Financial Services Mexico, S.A. de C.V.		USD	500			-			-
Banco Toyota do Brasil		USD	300			105			127
Toyota Finance Australia Limited		USD	1,000			200			350
Total					$	1,172		$	931
Note 15 – Related Party Transactions (Continued)
Other Financing Support Provided to Affiliates
TMCC and TFSC entered into conduit finance agreements under which TFSC passed along to TMCC certain funds that TFSC received from other financial institutions solely for the benefit of TMCC.  The last of these agreements expired in April 2012 and there were no amounts payable under these agreements as of March 31, 2014 and 2013, respectively.
TMCC provides home loans to relocated employees as well as certain officers, directors, and other members of management. Loans to directors and executive officers were made prior to July 30, 2002 and were grandfathered under the Sarbanes-Oxley Act of 2002.
TMCC provides wholesale financing to certain dealerships owned by affiliates. TMCC also pays these dealers origination fees. These costs represent direct costs incurred in connection with the acquisition of retail and lease contracts, including incentive and rate participation.
TMCC provides real estate and working capital loans to certain dealerships that were consolidated with another affiliate under the accounting guidance for variable interest entities.
TMCC has guaranteed the payments of principal and interest with respect to the bonds of manufacturing facilities of certain affiliates. The nature, business purpose, and amounts of these guarantees are described in Note 14 – Commitments and Contingencies.
TMCC and Toyota Financial Savings Bank (“TFSB”) are parties to a master participation agreement pursuant to which TMCC agreed to purchase up to $60 million per year of residential mortgage loans originated by TFSB that meet specified credit underwriting guidelines, not to exceed $150 million over a three year period. At March 31, 2014 and 2013, there were $52 million and $55 million, respectively, in loan participations outstanding that had been purchased by TMCC under this agreement.
Shared Service Arrangements with Affiliates
TMCC is subject to the following shared service agreements:
TMCC and TCPR incur costs under various shared service agreements with our affiliates. Services provided by affiliates under the shared service arrangement include marketing, technological and administrative services, as well as services related to our funding and risk management activities and our bank and investor relationships.
TMCC provides various services to our financial services affiliates, including certain administrative, systems and operational support.
TMCC provides various services to TFSB, including marketing, administrative, systems, and operational support in exchange for TFSB making available certain financial products and services to TMCC's customers and dealers meeting TFSB's credit standards.
TMCC is subject to expense reimbursement agreements related to costs incurred by TFSB, TFSA, and TMS in connection with our affiliates providing certain financial products and services to our customers and dealers in support of TMCC's customer loyalty strategy and programs, costs related to TFSB's credit card rewards program, and other brand and sales support.
Note 15 – Related Party Transactions (Continued)
Operational Support Arrangements with Affiliates
TMCC and TCPR provide various wholesale financing to vehicle and industrial equipment dealers, which result in our having payables to TMS, Toyota de Puerto Rico Corp (“TDPR”), Toyota Material Handling, U.S.A., Inc. (“TMHU”) and Hino Motor Sales, U.S.A., Inc. (“HINO”).
TMCC is party to a 15-year lease agreement with TMS for our headquarters location in the TMS headquarters complex in Torrance, California.  The lease commitments are described in Note 14 – Commitments and Contingencies.
Subvention receivables represent amounts due from TMS and other affiliates in support of retail, lease, and industrial equipment subvention programs offered by TMCC.  Deferred subvention income represents the unearned portion of amounts received from these transactions, and manufacturers' subvention support and other revenues primarily represent the earned portion of such amounts.
Leases to affiliates represent the investment in operating leases of vehicle and industrial equipment leased to affiliates.
TMCC is a participating employer in certain retirement, postretirement health care and life insurance sponsored by TMS as well as share-based compensation plans sponsored by TMC. See Note 12 – Pension and Other Benefit Plans for additional information.
Affiliate insurance premiums and contract revenues primarily represent revenues from TMIS for administrative services and various types of coverage provided to TMS and affiliates.  This includes contractual indemnity coverage and related administrative services for TMS' certified pre-owned vehicle program and umbrella liability policy.  TMIS provides umbrella liability insurance to TMS and affiliates covering certain dollar value layers of risk above various primary or self-insured retentions.  On all layers in which TMIS has provided coverage, 99 percent of the risk has been ceded to various reinsurers.  During fiscal 2012, TMIS began providing property deductible reimbursement insurance to TMS and affiliates covering losses incurred under their primary policy.
TMIS provided prepaid maintenance and vehicle service coverage to TMS in support of special sales and customer loyalty efforts until the programs were discontinued in fiscal 2011.  All contract revenue was fully recognized as of March 31, 2013.

Segment_Information

Segment Information	12 Months Ended
	Mar. 31, 2014
Segment Information [Abstract]	'
Segment Information	'
	Note 16 – Segment Information
	Our reportable segments include finance and insurance operations. Finance operations include retail, leasing, and dealer financing provided to authorized vehicle and industrial equipment dealers and their customers in the U.S. and Puerto Rico. Insurance operations are performed by TMIS and its subsidiaries. The principal activities of TMIS include marketing, underwriting, and claims administration related to covering certain risks of vehicle dealers and their customers in the U.S. The finance and insurance operations segment information presented below includes allocated corporate expenses for the respective segments. The accounting policies of the operating segments are the same as those described in Note 1 – Summary of Significant Accounting Policies.
	Financial information for our reportable operating segments for the years ended March 31 is summarized as follows:
			Finance		Insurance			Intercompany
	(Dollars in millions)		operations		operations		eliminations			Total
	Fiscal 2014:
	Total financing revenues		$	7,371	$	-		$	26	$	7,397
	Insurance earned premiums and contract revenues			-		593			-26		567
	Investment and other income, net			98		37			-		135
	Total gross revenues			7,469		630			-		8,099
	Less:
		Depreciation on operating leases		4,012		-			-		4,012
		Interest expense		1,340		-			-		1,340
		Provision for credit losses		170		-			-		170
		Operating and administrative expenses		767		198			-		965
		Insurance losses and loss adjustment expenses		-		258			-		258
		Provision for income taxes		437		60			-		497
	Net income		$	743	$	114		$	-	$	857
	Total assets		$	99,737	$	3,728		$	-725	$	102,740
	Note 16 – Segment Information (Continued)
			Finance		Insurance			Intercompany
	(Dollars in millions)		operations		operations			eliminations		Total
	Fiscal 2013:
	Total financing revenues		$	7,219	$	-		$	25	$	7,244
	Insurance earned premiums and contract revenues			-		596			-25		571
	Investment and other income, net			57		116			-		173
	Total gross revenues			7,276		712			-		7,988
	Less:
		Depreciation on operating leases		3,568		-			-		3,568
		Interest expense		940		-			-		940
		Provision for credit losses		121		-			-		121
		Operating and administrative expenses		734		177			-		911
		Insurance losses and loss adjustment expenses		-		293			-		293
		Provision for income taxes		730		94			-		824
	Net income		$	1,183	$	148		$	-	$	1,331
	Total assets		$	92,504	$	3,502		$	-704	$	95,302
	Fiscal 2012:1
	Total financing revenues		$	7,442	$	-		$	16	$	7,458
	Insurance earned premiums and contract revenues			-		620			-16		604
	Investment and other income, net			44		72			-3		113
	Total gross revenues			7,486		692			-3		8,175
	Less:
		Depreciation on operating leases		3,368		-			-		3,368
		Interest expense		1,303		-			-3		1,300
		Provision for credit losses		-98		-			-		-98
		Operating and administrative expenses		703		154			-		857
		Insurance losses and loss adjustment expenses		-		325			-		325
		Provision for income taxes		860		77			-		937
	Net income		$	1,350	$	136		$	-	$	1,486
	Total assets		$	86,049	$	3,233		$	-369	$	88,913
	1Certain prior period amounts have been reclassified to conform to the current period presentation.

Selected_Quarterly_Financial_D

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Mar. 31, 2014
Selected Quarterly Financial Data (Unaudited) [Abstract]	'
Selected Quarterly Financial Data (Unaudited)	'
	Note 17 – Selected Quarterly Financial Data (Unaudited)
		First		Second		Third		Fourth
	(Dollars in millions)	Quarter		Quarter		Quarter		Quarter
	Fiscal 2014:
	Total financing revenue	$	1,795	$	1,845	$	1,876	$	1,881
	Depreciation on operating leases		951		966		1,033		1,062
	Interest expense		536		314		386		104
	Net financing revenue		308		565		457		715
	Other income		145		157		209		191
	Provision for credit losses		11		28		63		68
	Expenses		298		301		297		327
	Income before income tax expense		144		393		306		511
	Provision for income taxes		53		149		113		182
	Net income	$	91	$	244	$	193	$	329
	Fiscal 2013:1
	Total financing revenue	$	1,797	$	1,822	$	1,821	$	1,804
	Depreciation on operating leases		855		891		907		915
	Interest expense		58		283		284		315
	Net financing revenue		884		648		630		574
	Other income		185		183		203		173
	Provision for credit losses		16		3		88		14
	Expenses		297		302		306		299
	Income before income tax expense		756		526		439		434
	Provision for income taxes		279		200		156		189
	Net income	$	477	$	326	$	283	$	245
	1 Certain prior period amounts have been reclassified to conform to the current period presentation.
	Other income is comprised of insurance earned premiums and contract revenues as well as net investment and other income. Expenses include operating and administrative expenses as well as insurance losses and loss adjustment expenses.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Mar. 31, 2014
Summary of Significant Accounting Policies [Abstract]	'
Nature of Operations	'
	Nature of Operations
	Toyota Motor Credit Corporation was incorporated in California in 1982 and commenced operations in 1983. References herein to “TMCC” denote Toyota Motor Credit Corporation, and references herein to “we”, “our”, and “us” denote Toyota Motor Credit Corporation and its consolidated subsidiaries. We are wholly-owned by Toyota Financial Services Americas Corporation (“TFSA”), a California corporation, which is a wholly-owned subsidiary of Toyota Financial Services Corporation (“TFSC”), a Japanese corporation. TFSC, in turn, is a wholly-owned subsidiary of Toyota Motor Corporation (“TMC”), a Japanese corporation. TFSC manages TMC's worldwide financial services operations. TMCC is marketed under the brands of Toyota Financial Services and Lexus Financial Services.
	We provide a variety of finance and insurance products to authorized Toyota (including Scion) and Lexus vehicle dealers or dealer groups and, to a lesser extent, other domestic and import franchise dealers (collectively referred to as “vehicle dealers”) and their customers in the United States (excluding Hawaii) (the “U.S.”) including Puerto Rico. Our business is substantially dependent upon the sale of Toyota, Lexus and Scion vehicles.
	Our products fall primarily into the following product categories:
	Finance - We acquire a broad range of retail finance products including consumer and commercial installment sales contracts (“retail contracts”) in the U.S. and Puerto Rico and leasing contracts accounted for as either direct finance leases or operating leases (“lease contracts”) from vehicle and industrial equipment dealers in the U.S. We also provide dealer financing, including wholesale financing (also referred to as floorplan financing), working capital loans, revolving lines of credit and real estate financing to vehicle and industrial equipment dealers in the U.S. and Puerto Rico.
	Insurance - Through Toyota Motor Insurance Services, Inc., a wholly-owned subsidiary, and its insurance company subsidiaries (collectively referred to as “TMIS”), we provide marketing, underwriting, and claims administration related to covering certain risks of vehicle dealers and their customers. We also provide coverage and related administrative services to certain of our affiliates in the U.S.
	Our primary finance operations are located in the U.S. and Puerto Rico with earning assets principally sourced through Toyota and Lexus vehicle dealers. As of March 31, 2014, approximately 21 percent of vehicle retail contracts and lease assets were concentrated in California, 11 percent in Texas, 8 percent in New York, and 6 percent in New Jersey. Our insurance operations are located in the U.S. As of March 31, 2014, approximately 27 percent of insurance policies and contracts were concentrated in California, 7 percent in New York and 5 percent in New Jersey. Any material adverse changes to the economies or applicable laws in these states could have an adverse effect on our financial condition and results of operations.
Basis of Presentation	'
	Basis of Presentation
	Our accounting and financial reporting policies conform to accounting principles generally accepted in the United States of America (U.S. GAAP). Certain prior period amounts have been reclassified to conform to the current year presentation.
	Related party transactions presented in the Consolidated Financial Statements are disclosed in Note 15 – Related Party Transactions of the Notes to Consolidated Financial Statements.
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements include the accounts of TMCC, its wholly-owned subsidiaries and all variable interest entities (“VIE”) of which we are the primary beneficiary. All intercompany transactions and balances have been eliminated.
	Variable Interest Entities
	A VIE is an entity that either (i) has insufficient equity to permit the entity to finance its activities without additional subordinated financial support or (ii) has equity investors who lack the characteristics of a controlling financial interest. The primary beneficiary of a VIE is the party with both the power to direct the activities of the VIE that most significantly impact the VIE's economic performance and the obligation to absorb the losses or the right to receive benefits that could potentially be significant to the VIE.
	To assess whether we have the power to direct the activities of a VIE that most significantly impact its economic performance, we consider all the facts and circumstances including our role in establishing the VIE and our ongoing rights and responsibilities. This assessment includes identifying the activities that most significantly impact the VIE's economic performance and identifying which party, if any, has power over those activities. In general, the party that makes the most significant decisions affecting the VIE is determined to have the power to direct the activities of a VIE. To assess whether we have the obligation to absorb the losses or the right to receive benefits that could potentially be significant to the VIE, we consider all of our economic interests, including debt and equity interests, servicing rights and fee arrangements, and any other variable interests in the VIE. If we determine that we are the party with the power to make the most significant decisions affecting the VIE, and we have an obligation to absorb the losses or the right to receive benefits that could potentially be significant to the VIE, then we consolidate the VIE.
	We perform ongoing reassessments, usually quarterly, of whether we are the primary beneficiary of a VIE. The reassessment process considers whether we have acquired or divested the power to direct the most significant activities of the VIE through changes in governing documents or other circumstances. We also reconsider whether entities previously determined not to be VIEs have become VIEs, based on certain events, and therefore are subject to the VIE consolidation framework.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Because of inherent uncertainty involved in making estimates, actual results could differ from those estimates and assumptions. The accounting estimates that are most important to our business are the determination of residual value and the allowance for credit losses as well as estimates related to the fair value of our derivative instruments and marketable securities.
Revenue Recognition	'
	Revenue Recognition
	Retail and Dealer Financing Revenues
	Revenues associated with retail and dealer financing are recognized so as to approximate a constant effective yield over the contract term. Incremental direct fees and costs incurred in connection with the acquisition of retail contracts and dealer financing receivables, including incentive and rate participation payments made to vehicle and industrial equipment dealers, are capitalized and amortized so as to approximate a constant effective yield over the term of the related contracts. Payments received on affiliate sponsored special rate programs (“subvention”) are deferred and recognized to approximate a constant effective yield over the term of the related contracts.
	Operating Lease Revenues
	Operating lease revenues are recorded to income on a straight-line basis over the term of the lease. Incremental direct fees and costs received or paid in connection with the acquisition of operating leases, including incentive and rate participation payments made to vehicle and industrial equipment dealers and acquisition fees collected from customers, are capitalized or deferred and amortized on a straight-line basis over the term of the related contract. Payments received on subvention programs are deferred and recognized on a straight-line basis over the term of the related contracts. Operating lease revenue is recorded net of sales taxes collected from customers.
	Direct Finance Lease Revenues
	Revenue is recognized over the lease term so as to approximate a constant effective yield on the outstanding net investment. Incremental direct costs and fees paid or received in connection with the acquisition of direct finance leases, including incentive and rate participation payments made to vehicle and industrial equipment dealers and acquisition fees collected from customers, are capitalized or deferred and amortized to approximate a constant effective yield over the term of the related contracts. Payments received on subvention programs are deferred and recognized to approximate a constant effective yield over the term of the related contracts.
	Insurance Earned Premiums and Contract Revenues
	Revenues from providing coverage under various contractual agreements are recognized over the term of the coverage in relation to the timing and level of anticipated claims and administrative expenses. Revenues from insurance policies, net of premiums ceded to reinsurers, are earned over the terms of the respective policies in proportion to the estimated loss development. Management relies on historical loss experience as a basis for establishing earnings factors used to recognize revenue over the term of the contract or policy.
	The portion of premiums and contract revenues applicable to the unexpired terms of the agreements is recorded as unearned insurance premiums and contract revenues. Agreements sold range in term from 3 to 120 months. Certain costs of acquiring new business, consisting primarily of dealer commissions and premium taxes, are deferred and amortized over the term of the related policies on the same basis as revenues are earned.
	Service commissions and fees are recognized over the term of the coverage in relation to the timing of services performed. The effect of subsequent cancellations is recorded as an offset to unearned insurance premiums and contract revenues.
Depreciation on Operating Leases	'
	Depreciation on Operating Leases
	Depreciation on vehicle operating leases is recognized using the straight-line method over the lease term, typically two to five years. The depreciable basis is the original cost of the vehicle less the estimated residual value of the vehicle at the end of the lease term. During the lease term, adjustments to depreciation expense reflecting revised estimates of expected residual values at the end of the lease terms are recorded prospectively on a straight-line basis.
Allowance for Credit Losses	'
	Allowance for Credit Losses
	We maintain an allowance for credit losses to cover probable and estimable losses on our earning assets resulting from the failure of customers or dealers to make contractual payments. Management evaluates the allowance at least quarterly, considering a variety of factors and assumptions to determine whether the allowance is considered adequate to cover probable and estimable losses incurred as of the balance sheet date. The allowance for credit losses is management's estimate of the amount of probable incurred credit losses in our existing finance receivables and investment in operating leases portfolios.
	Management develops and documents the allowance for credit losses on finance receivables based on three portfolio segments. We also separately develop and document the allowance for credit losses for investments in operating leases. Investments in operating leases are not within the scope of accounting guidance governing the disclosure of portfolio segments. The determination of portfolio segments is based primarily on the qualitative consideration of the nature of our business operations and the characteristics of the underlying finance receivables. The three portfolio segments within finance receivables, net are:
	Retail Loan Portfolio Segment – The retail loan portfolio segment consists of retail contracts acquired from vehicle dealers in the U.S. and Puerto Rico (“retail loan contracts”). Under a retail loan contract, we are granted a security interest in the underlying collateral which consists primarily of Toyota, Scion or Lexus vehicles. Based on the common risk characteristics associated with the finance receivables, the retail loan portfolio segment is considered a single class of finance receivable.
	Commercial Portfolio Segment– The commercial portfolio segment consists of commercial contracts (“commercial loan contracts”) and leasing contracts accounted for as direct finance leases acquired from commercial truck and industrial equipment dealers in the U.S. Under commercial loan and direct finance leases, we are granted a security interest in the underlying collateral which consists of various types of commercial trucks and industrial equipment. Based on the common risk characteristics associated with the finance receivables and the similarity of the credit risk with respect to the two types of contracts, the commercial portfolio segment is considered a single class of finance receivable.
	Dealer Products Portfolio Segment – The dealer products portfolio segment consists of wholesale financing (also referred to as floorplan financing), working capital loans, revolving lines of credit and real estate financing to vehicle and industrial equipment dealers in the U.S. and Puerto Rico. Wholesale loans are primarily collateralized by new or used vehicle or equipment inventory with the outstanding balance fluctuating based on the level of inventory. Real estate loans are collateralized by the underlying real estate, are underwritten on a loan-to-value basis and are typically for a fixed term. Working capital loans and revolving lines of credit are granted for working capital purposes and are secured by dealership assets. Based on the risk characteristics associated with the underlying finance receivables, the dealer products portfolio segment consists of three classes of finance receivables: wholesale, real estate, and working capital.
	Methodology Used to Develop the Allowance for Credit Losses
	Retail Loan Portfolio Segment and Investments in Operating Leases
	The level of credit risk in our retail loan portfolio segment and our investments in operating leases is influenced primarily by two factors: default frequency and loss severity, which in turn are influenced by various factors such as economic conditions, the used vehicle market, purchase quality mix, contract term length, and operational changes.
	We evaluate the retail loan portfolio segment and investments in operating leases using methodologies that include roll rate, credit risk grade/tier, and vintage analysis. We review and analyze external factors, including changes in economic conditions, actual or perceived quality, safety and reliability of Toyota, Lexus and Scion vehicles, unemployment levels, the used vehicle market, and consumer behavior. In addition, internal factors, such as purchase quality mix and operational changes are also considered in the reviews.
	Commercial Portfolio Segment
	The level of credit risk in our commercial portfolio segment is influenced primarily by two factors: default frequency and loss severity, which in turn are influenced by various economic factors, the used equipment and truck markets, purchase quality mix, contract term length, and operational changes.
	We evaluate the commercial portfolio segment using methodologies that include product grouping analysis, historical loss and loss frequency by product. We review and analyze external factors, including changes in economic conditions, unemployment level, and the used equipment and truck markets. In addition, internal factors, such as purchase quality mix and operational changes, are also considered in the reviews.
	Dealer Products Portfolio Segment
	The level of credit risk in our dealer products portfolio segment is influenced primarily by the financial strength of dealers within our portfolio, dealer concentration, collateral quality, and other economic factors. The financial strength of dealers within our portfolio is influenced by, among other factors, general economic conditions, the overall demand for new and used vehicles and industrial equipment and the financial condition of automotive manufacturers in general.
	We evaluate the dealer portfolio by first aggregating dealer financing receivables into loan-risk pools, which are determined based on the risk characteristics of the loan (e.g. secured by either vehicles and industrial equipment, real estate or dealership assets, or unsecured). We then analyze dealer pools using an internally developed risk rating. In addition, field operations management and our special assets group are consulted each quarter to determine if any specific dealer loan is considered impaired. If impaired loans are identified, specific reserves are established, as appropriate, and the loan is removed from the loan-risk pool for separate monitoring.
	Accounting for the Allowance for Credit Losses and Impaired Receivables
	The majority of the allowance for credit losses covers estimated losses on the retail loan portfolio segment and the commercial portfolio segment, which are collectively evaluated for impairment. The remainder of the allowance for credit losses covers the estimated losses on investments in operating leases and the dealer products portfolio segment. Within the dealer products portfolio segment, we establish specific reserves to cover the estimated losses on individual impaired loans (including loans modified in a troubled debt restructuring). The specific reserves are assessed based on discounted cash flows, the loan's observable market price, or the fair value of the underlying collateral if the loan is collateral dependent.
	Troubled debt restructurings in the retail loan and commercial portfolio segments are aggregated with their respective portfolio segments when determining the allowance for credit losses. Impaired loans in the retail loan and commercial loan portfolio segments are insignificant for individual evaluation and we have determined that the allowance for credit losses for each of the retail loan and commercial portfolio segments would not be materially different if they had been individually evaluated for impairment.
	Increases to the allowance for credit losses are accompanied by corresponding charges to the provision for credit losses. The amount we do not expect to collect for retail and lease contracts is charged off against the allowance for credit losses when payments due are no longer expected to be received or the account is 120 days contractually delinquent, whichever occurs first.
	Collateral, if recoverable, is repossessed and sold. Any shortfalls in the retail loan and commercial portfolio segments and investments in operating leases between proceeds received from the sale of repossessed collateral and the amounts due from customers are charged against the allowance. Any shortfalls in the dealer products portfolio segment between proceeds received from the sale of repossessed collateral and the amounts specifically reserved will result in additional losses. The allowance related to our earning assets is included in Finance receivables, net and Investments in operating leases, net in the Consolidated Balance Sheet.
Insurance Losses and Loss Adjustment Expenses	'
	Insurance Losses and Loss Adjustment Expenses
	Insurance losses and loss adjustment expenses include amounts paid and accrued for loss events that are known and have been recorded as claims, estimates of losses incurred but not reported that are based on actuarial estimates and historical loss development patterns, and loss adjustment expenses that are expected to be incurred in connection with settling and paying these claims.
	Accruals for unpaid losses, losses incurred but not reported, and loss adjustment expenses are included in other liabilities in the Consolidated Balance Sheet. Estimated liabilities are reviewed regularly and we recognize any adjustments in the periods in which they are determined. If anticipated losses, loss adjustment expenses, and unamortized acquisition and maintenance costs exceed the recorded unearned premium, a premium deficiency is recognized by first charging any unamortized acquisition costs to expense and then by recording a liability for any excess deficiency.
Cash and Cash Equivalents	'
	Cash Equivalents
	Cash equivalents, which consist of money market instruments, commercial paper and certificates of deposit, represent highly liquid investments with maturities of three months or less at purchase.
Restricted Cash	'
	Restricted Cash and Cash Equivalents
	Restricted cash represents proceeds from certain debt issuances for which the use of the cash is restricted, as well as customer collections on securitized receivables to be distributed to investors as payments on the related secured debt and certain reserve deposits held for securitization trusts. Restricted cash equivalents represent proceeds from the issuance of debt secured by retail loans in March 2014. The proceeds from this issuance are restricted to be used solely to acquire retail and lease contracts financing new Toyota and Lexus vehicles of certain specified “green” models. These amounts are held in money market instruments.
Investments in Marketable Securites	'
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Investments in Marketable Securities
	Investments in marketable securities consist of debt and equity securities. Debt and equity securities designated as available-for-sale (“AFS”) are recorded at fair value using quoted market prices where available with unrealized gains or losses included in accumulated other comprehensive income (“AOCI”), net of applicable taxes in the Consolidated Statement of Shareholder's Equity. Realized gains and losses are determined using either the specific identification method or first in first out method, depending on the type of investment in our portfolio. Realized investment gains and losses are reflected in Investment and other income, net in the Consolidated Statement of Income.
	Other-than-Temporary Impairment
	An unrealized loss exists when the current fair value of an individual security is less than its amortized cost basis. Unrealized losses that are determined to be temporary in nature are recorded, net of tax, in AOCI. We conduct periodic reviews of securities in unrealized loss positions for the purpose of evaluating whether the impairment is other-than-temporary.
	As part of our ongoing assessment of other-than-temporary impairment (“OTTI”), we consider a variety of factors. Such factors include the length of time and extent to which the market value of a security has been less than amortized cost, adverse conditions specifically related to the industry, geographic area or financial condition of the issuer or underlying collateral of the security, the volatility of the fair value changes, and changes to the fair value after the balance sheet date.
	An OTTI loss with respect to debt securities must be recognized in earnings if we have the intent to sell the debt security or it is more likely than not that we will be required to sell the debt security before recovery of its amortized cost basis. If we have the intent to sell, the cost basis of the security is written down to fair value and the write down is reflected in Investment and other income, net in the Consolidated Statement of Income. If we have no intent to sell and we believe that it is more likely than not we will not be required to sell these securities prior to recovery, the credit loss component of the unrealized losses is recognized in Investment and other income, net in the Consolidated Statement of Income, while the remainder of the loss is recognized in AOCI. The credit loss component recognized in Investment and other income, net in the Consolidated Statement of Income is identified as the portion of the amortized cost of the security not expected to be collected over the remaining term as projected using a cash flow analysis for debt securities.
	We perform periodic reviews of our AFS equity securities to determine whether unrealized losses are temporary in nature. We consider our intent and ability to hold the security for a period of time sufficient for recovery of fair value. Where we lack that intent or ability, the equity security's decline in fair value is deemed to be other-than-temporary. If losses are considered to be other-than-temporary, the cost basis of the security is written down to fair value and the write down is reflected in Investment and other income, net in the Consolidated Statement of Income.
Finance Receivables	'
	Finance Receivables
	Our finance receivables consist of retail loan, commercial and dealer products portfolio segments. Finance receivables recorded on our balance sheet are comprised of the unpaid principal balance, plus accrued interest and deferred fees and costs, net of the allowance for credit losses, certain other dealer funds and deferred income. Direct finance leases are recorded on our balance sheet as the aggregate future minimum lease payments, contractual residual value of the leased vehicle or industrial equipment, and deferred income.
	Finance receivables are classified as held-for-investment if the Company has the intent and ability to hold the receivables for the foreseeable future or until maturity or payoff. As of March 31, 2014 and 2013, all finance receivables were classified as held-for-investment and reported at amortized cost.
	Impaired Receivables
	A receivable account balance is considered impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due according to the terms of the contract. Factors such as payment history, compliance with terms and conditions of the underlying loan agreement and other subjective factors related to the financial stability of the borrower are considered when determining whether a loan is impaired.
	Troubled Debt Restructurings
	A troubled debt restructuring occurs when an account is modified through a concession to a borrower experiencing financial difficulty. An account modified under a troubled debt restructuring is considered to be impaired. In addition, troubled debt restructurings include accounts for which the customer has filed for bankruptcy protection. For such accounts, we no longer have the ability to modify the terms of the agreement without the approval of the bankruptcy court and the court may impose term modifications that we are obligated to accept.
	Payment Defaults
	A payment default on an account that has been modified as a troubled debt restructuring is deemed to have occurred when the account becomes thirty days past due. Accounts for which the debtor has filed for bankruptcy protection are not considered to have a payment default as we are prohibited from applying our normal collection procedures.
	Nonaccrual Policy
	Dealer Products Portfolio Segment
	Impaired receivables in the dealer product portfolio segment are placed on nonaccrual status if full payment of principal or interest is in doubt, or when principal or interest is 90 days or more past due. Interest accrued, but not collected at the date a receivable is placed on nonaccrual status, is reversed against interest income. In addition, the amortization of net deferred fees is suspended. Interest income on nonaccrual receivables is recognized only to the extent it is received in cash. Accounts are restored to accrual status only when interest and principal payments are brought current and future payments are reasonably assured. Receivable balances are charged off against the allowance for credit losses when the loss has been realized.
	Retail Loan and Commercial Portfolio Segments
	Receivables within the retail loan and commercial portfolio segments are not placed on nonaccrual status when principal or interest is 90 days or more past due. Rather the amount we do not expect to collect is charged off against the allowance for credit losses when payments due are no longer expected to be received or the account is 120 days contractually delinquent, whichever occurs first.
Investments in Operating Leases	'
	Investments in Operating Leases
	We record our investments in operating leases at acquisition cost, net of deferred fees and costs, deferred income, accumulated depreciation and the allowance for credit losses.
	Nonaccrual Policy
	Investments in operating leases are not placed on nonaccrual status. Rather, the amount we do not expect to collect is charged off against the allowance for credit losses when payments due are no longer expected to be received or the account is 120 days contractually delinquent, whichever occurs first.
	Determination of Residual Value
	Substantially all of our residual value risk relates to our vehicle lease portfolio. Residual values of lease earning assets are estimated at lease inception by examining external industry data, the anticipated Toyota, Lexus and Scion product pipeline and our own experience. Factors considered in this evaluation include, but are not limited to, local, regional and national economic forecasts, new vehicle pricing, new vehicle incentive programs, new vehicle sales, future plans for new Toyota, Lexus and Scion product introductions, competitor actions and behavior, product attributes of popular vehicles, the mix of used vehicle supply, the level of current used vehicle values, buying and leasing behavior trends, and fuel prices. We use various channels to sell vehicles returned at lease end.
	On a quarterly basis, we review the estimated end-of-term market values of leased vehicles to assess the appropriateness of the carrying values at lease end. To the extent the estimated end-of-term market value of a leased vehicle is lower than the residual value established at lease inception, the residual value of the leased vehicle is adjusted downward so that the carrying value at lease end will approximate the estimated end-of-term market value. Factors affecting the estimated end-of-term market value are similar to those considered in the evaluation of residual values at lease inception discussed above. These factors are evaluated in the context of their historical trends to anticipate potential future changes in the relationship among these factors. For operating leases, adjustments are made prospectively on a straight-line basis over the remaining terms of the leases and are included in depreciation on operating leases in the Consolidated Statement of Income. For direct finance leases, adjustments are made at the time of assessment and are recorded as a reduction of direct finance lease revenues which is included under our retail revenues in the Consolidated Statement of Income.
	We review our investments in operating leases for impairment whenever events or changes in circumstances indicate that the carrying value of the operating leases may not be recoverable. If such events or changes in circumstances are present, we perform a test for recoverability by comparing the expected undiscounted future cash flows (including expected residual values) over the remaining lease terms to the carrying value of the asset group. If the test for recoverability identifies a possible impairment, the asset group's fair value is measured in accordance with the fair value measurement framework. An impairment charge is recognized for the amount by which the carrying value of the asset group exceeds its estimated fair value and is recorded in the current period Consolidated Statement of Income.
Used Vehicles Held for Sale	'
	Used Vehicles Held for Sale
	Used vehicles held for sale consist of off-lease vehicles and repossessed vehicles. These vehicles are recorded at the lower of their carrying value or estimated fair value. For repossessed vehicles, the difference between the outstanding receivable and the amount the vehicle is recorded on our books is charged off against the allowance for credit losses.
Debt Issuance Costs	'
	Debt Issuance Costs
	Costs that are direct and incremental to debt issuance are capitalized and amortized to interest expense on a level yield basis over the contractual term of the debt. All other costs related to debt issuance are expensed as incurred.
Fair Value Measurement - Definition and Hierarchy	'
	Fair Value Measurements
	Some of our assets and liabilities are measured at fair value on a recurring basis including our cash equivalents, investments in marketable securities and derivatives. Certain other financial assets and liabilities are measured at fair value on a nonrecurring basis based on specific circumstances such as impairment. Finance receivables and debt are not presented in our financial statements at fair value, but their estimated fair value is included for disclosure purposes, as well as the methods and significant assumptions used to estimate their fair value.
	Definition and Hierarchy
	Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. If quoted prices in an active market are available, fair value is determined by reference to these prices. If quoted prices are not available, fair value is determined by valuation models that primarily use, as inputs, market-based or independently sourced parameters, including but not limited to interest rates, volatilities, foreign exchange rates and credit curves. Additionally, we may reference prices for similar instruments, quoted prices or recent transactions in less active markets. We use prices and inputs that are current as of the measurement date, including during periods of market dislocation. In periods of market dislocation, the availability of prices and inputs may be reduced for certain financial instruments. This condition could result in a financial instrument being reclassified from Level 1 to Level 2 or from Level 2 to Level 3.
	Level 1: Quoted (unadjusted) prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.
	Level 2: Quoted prices in active markets for similar assets and liabilities, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability.
	Level 3: Unobservable inputs that are supported by little or no market activity may require significant judgment in order to determine the fair value of the assets and liabilities.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	The use of observable and unobservable inputs is reflected in the fair value hierarchy assessment disclosed in the tables within this document. The availability of observable inputs can vary based upon the financial instrument and other factors, such as instrument type, market liquidity and other specific characteristics particular to the financial instrument. To the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires additional judgment by management. The degree of management's judgment can result in financial instruments being classified as or transferred to the Level 3 category.
	Valuation Methods
	We maintain policies and procedures to value instruments using the best and most relevant data available. The Treasury Risk and Analytics Group (“TR&A”) is responsible for determining the fair value of our financial instruments. TR&A consists of quantitative analysts and risk and accounting professionals. Using benchmarking techniques, TR&A reviews our valuation pricing models at least annually to assess their ongoing propriety. As markets and products develop and the pricing for certain products becomes more or less transparent, TR&A refines its valuation methodologies. TR&A reviews the appropriateness of fair value measurements including validation processes, key model inputs, and the reconciliation of period-over-period fluctuations based on changes in key market inputs. Where possible, valuations, including both internally and externally obtained transaction prices, are validated against independent valuation sources. Our Fair Value Working Group (“FVWG”) reviews and approves the fair value measurement results and other relevant data quarterly. The FVWG consists of a cross-section of internal stakeholders who are knowledgeable in the area of financial valuations. All changes to our valuation methodologies are reviewed and approved by the FVWG.
	We conduct reviews of our primary pricing vendors to understand and assess the reasonableness of inputs used in their pricing process. While we do not have access to our vendors' proprietary models, we perform detailed reviews of the pricing process, methodologies and control procedures for each asset class for which prices are provided. Our reviews include examination of the underlying inputs and assumptions for a sample of individual securities selected based on the nature and complexity of the securities. In addition, our pricing vendors have established processes in place for all valuations, which facilitates identification and resolution of potentially erroneous prices. We believe that the prices received from our pricing vendors are representative of prices that would be received to sell the assets or paid to transfer the liabilities at the measurement date and are classified appropriately in the hierarchy.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Valuation Adjustments
	We may make valuation adjustments to ensure that financial instruments are recorded at fair value. These adjustments include amounts to reflect counterparty credit quality, our own creditworthiness, as well as constraints due to market illiquidity or unobservable parameters.
	Counterparty Credit Valuation Adjustments – Adjustments are required when the market price (or parameter) is not indicative of the credit quality of the counterparty.
	Non-Performance Credit Valuation Adjustments – Adjustments reflect our own non-performance risk when our liabilities are measured at fair value.
	Liquidity Valuation Adjustments – Adjustments are necessary when we are unable to observe prices for a financial instrument due to market illiquidity.
	Recurring Fair Value Measurements
	This section describes the valuation methodologies, key inputs and significant assumptions for financial instruments measured at fair value.
	Cash Equivalents
	Cash equivalents include money market instruments, commercial paper and certificates of deposits, which represent highly liquid investments with maturities of three months or less at purchase. Where money market funds produce a daily net asset value in an active market, we use this value to determine the fair value of the fund investment and classify the investment in Level 1 of the fair value hierarchy. All other types of cash equivalents are classified in Level 2 of the fair value hierarchy.
	Investments in Marketable Securities
	The marketable securities portfolio consists of debt and equity securities. We estimate the value of our debt securities using observed transaction prices, independent pricing vendors, and internal pricing models.
	Pricing methodologies and inputs to valuation models used by the pricing vendors depend on the security type. Where possible, quoted prices in active markets for identical securities are used to determine the fair value of the investment securities; these securities are classified in Level 1 of the fair value hierarchy. Where quoted prices in active markets are not available, the pricing vendor uses various pricing models for each asset class that are consistent with what market participants use. The inputs and assumptions to the models of the pricing vendors are derived from market observable sources including: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, benchmark securities, bids, offers, and other market-related data. Since many fixed income securities do not trade on a daily basis, the pricing vendors use applicable available information, such as benchmark curves, benchmarking of similar securities, sector groupings, and matrix pricing. These investments are classified in Level 2 of the fair value hierarchy. Our pricing vendors may provide us with valuations that are based on significant unobservable inputs; in such circumstances, we classify these investments in Level 3 of the fair value hierarchy. Valuations obtained from third party pricing vendors are validated to assess their reasonableness.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	We hold investments in actively traded open-end equity mutual funds and private placement fixed income mutual funds. Where the funds produce a daily net asset value that is quoted in an active market, we use this value to determine the fair value of the fund investment and classify the investment in Level 1 of the fair value hierarchy. Where the funds produce a daily net asset value that is not quoted in an active market, we estimate the fair value of the investment using the net asset value per share.  We classify such funds in Level 2 of the fair value hierarchy as we have the ability to redeem our investment at the net asset value per share at the balance sheet date.
	Derivatives
	We estimate the fair value of our derivatives using industry standard valuation models that require observable market inputs, including market prices, yield curves, credit curves, interest rates, foreign exchange rates, volatilities and the contractual terms of the derivative instruments. For derivatives that trade in liquid markets, model inputs can generally be verified and do not require significant management judgment. These derivative instruments are classified in Level 2 of the fair value hierarchy.
	Certain other derivative transactions trade in less liquid markets with limited pricing information. For such derivatives, key inputs to the valuation process include quotes from counterparties and other market data used to corroborate and adjust values where appropriate. Other market data includes values obtained from a market participant that serves as a third party pricing vendor. Inputs obtained from counterparties and third party pricing vendors are internally validated using valuation models to assess the reasonableness of changes in factors such as market prices, yield curves, credit curves, interest rates, foreign exchange rates and volatilities. These derivative instruments are classified in Level 3 of the fair value hierarchy.
	Our derivative fair value measurements consider assumptions about counterparty credit risk and our own non-performance risk. We consider counterparty credit risk and our own non-performance risk through credit valuation adjustments.
	Note 1 – Summary of Significant Accounting Policies (Continued)
	Nonrecurring Fair Value Measurements
	Impaired Finance Receivables
	For finance receivables within the dealer products portfolio segment for which there is evidence of impairment, we may measure impairment based on discounted cash flows, the loan's observable market price or the fair value of the underlying collateral if the loan is collateral dependent. The fair values of impaired finance receivables are reported at fair value on a nonrecurring basis. The methods used to estimate the fair value of the underlying collateral depends on the specific class of finance receivable. For finance receivables within the wholesale class of finance receivables, the collateral value is generally based on wholesale market value or liquidation value for new and used vehicles. For finance receivables within the real estate class of finance receivables, the collateral value is generally based on appraisals. For finance receivables within the working capital class of finance receivables, the collateral value is generally based on the expected liquidation value of the underlying dealership assets. Adjustments may be performed in circumstances where market comparables are not specific to the attributes of the specific collateral or appraisal information may not be reflective of current market conditions due to the passage of time and the occurrence of market events since receipt of the information. As these valuations utilize unobservable inputs, our impaired finance receivables are classified in Level 3 of the fair value hierarchy.
	Financial Instruments Not Carried at Fair Value
	Finance Receivables
	Our finance receivables consist of retail loans, comprised of retail loan contracts and commercial loan contracts, and dealer loans, comprised of wholesale, real estate and working capital financing. Retail loans are primarily valued using a securitization model that incorporates expected cash flows. Cash flows expected to be collected are estimated using contractual principal and interest payments adjusted for specific factors, such as prepayments, default rates, loss severity, credit scores, and collateral type. The securitization model utilizes quoted secondary market rates if available, or estimated market rates that incorporate management's best estimate of investor assumptions about the portfolio. Dealer loans are valued using a discounted cash flow model. Discount rates are derived based on market rates for equivalent portfolio bond ratings. As these valuations utilize unobservable inputs, our finance receivables are classified in Level 3 of the fair value hierarchy.
	Commercial Paper
	The carrying value of commercial paper issued is assumed to approximate fair value due to its short duration and generally negligible credit risk. We validate this assumption by recalculating the fair value of our commercial paper using quoted market rates. Commercial paper is classified in Level 2 of the fair value hierarchy.
	Unsecured Notes and Loans Payable
	Unsecured notes and loans payable are primarily valued using current market rates and credit spreads for debt with similar maturities. Our valuation models utilize observable inputs such as standard industry curves; therefore, we classify these unsecured notes and loans payables in Level 2 of the fair value hierarchy. Where observable inputs are not available, we use quoted market prices to estimate the fair value of unsecured notes and loans payable. These unsecured notes and loans payable are classified in Level 3 of the fair value hierarchy since the market for these instruments is not active. In a limited number of instances, where neither observable inputs nor quoted market prices are available, we estimate the fair value of unsecured notes and loan payable using quotes from counterparties or a third party pricing vendor. We review the appropriateness of these fair value measurements by assessing the reasonableness of period over period fluctuations. Since the valuations utilize unobservable inputs, we classify the unsecured notes and loans payables in Level 3 of the fair value hierarchy.
	Secured Notes and Loans Payable
	Fair value is estimated based on current market rates and credit spreads for debt with similar maturities. We also use internal assumptions, including prepayment speeds and expected credit losses on the underlying securitized assets, to estimate the timing of cash flows to be paid on these instruments. As these valuations utilize unobservable inputs, our secured notes and loans payables are classified in Level 3 of the fair value hierarchy.
Derivative Instruments	'
	Derivative Instruments
	All derivative instruments are recorded on the balance sheet at fair value, taking into consideration the effects of legally enforceable master netting agreements that allow us to net settle asset and liability positions and offset cash collateral held with the same counterparty on a net basis. Changes in the fair value of derivatives are recorded in interest expense in the Consolidated Statement of Income.
	We categorize derivatives as those designated for hedge accounting (“hedge accounting derivatives”) and those that are not designated for hedge accounting (“non-hedge accounting derivatives”). At the inception of a derivative contract, we may elect to designate a derivative as a hedge accounting derivative if certain criteria are met.
	In order to qualify for hedge accounting, a derivative must be considered highly effective at reducing the risk associated with the exposure being hedged. When we designate a derivative in a hedging relationship, we contemporaneously document the risk management objective and strategy. This documentation includes the identification of the hedging instrument, the hedged item and the risk exposure, how we will assess effectiveness prospectively and retrospectively, and how often we will carry out this assessment.
	We use the “long-haul” method of assessing effectiveness for our fair value hedges, except for certain types of existing hedge relationships that meet stringent criteria where we apply the shortcut method. The shortcut method provides an assumption of zero ineffectiveness that results in equal and offsetting changes in fair value in the Consolidated Statement of Income for both the hedged debt and the hedge accounting derivative. When the shortcut method is not applied, any ineffective portion of the derivative that is designated as a fair value hedge is recognized as a component of interest expense in the Consolidated Statement of Income. We recognize changes in the fair value of derivatives designated in fair value hedging relationships (including foreign currency fair value hedging relationships) in interest expense in the Consolidated Statement of Income along with the fair value changes of the related hedged item.
	If we elect not to designate a derivative instrument in a hedging relationship, or the relationship does not qualify for hedge accounting treatment, the full change in the fair value of the derivative instrument is recognized as a component of interest expense in the Consolidated Statement of Income with no offsetting adjustment for the economically hedged item.
	We review the effectiveness of our hedging relationships at least quarterly to determine whether the relationships have been and continue to be effective. We use regression analysis to assess the effectiveness of our hedges. When we determine that a hedging relationship is not or has not been effective, hedge accounting is no longer applied. If hedge accounting is discontinued, we continue to carry the derivative instrument as a component of other assets or other liabilities in the Consolidated Balance Sheet at fair value, with changes in fair value reported in interest expense in the Consolidated Statement of Income. Additionally, for discontinued fair value hedges, we cease to adjust the hedged item for changes in fair value and amortize the cumulative fair value adjustments recognized in prior periods over the remaining term of the hedged item.
	We will also discontinue the use of hedge accounting if a derivative is sold, terminated, or if management determines that designating a derivative under hedge accounting is no longer deemed appropriate based on current investment strategy (“de-designated derivatives”). De-designated derivatives are included within the category of non-hedge accounting derivatives.
	We also issue debt which is considered a “hybrid financial instrument”. These debt instruments are assessed to determine whether they contain embedded derivatives requiring separate reporting and accounting. The embedded derivative may be bifurcated and recorded on the balance sheet at fair value or the entire financial instrument may be recorded at fair value. Changes in the fair value of the bifurcated embedded derivative or the entire hybrid financial instrument are reported in interest expense in the Consolidated Statement of Income.
	Offsetting of Derivatives
	The accounting guidance permits the net presentation on the Consolidated Balance Sheet of derivative receivables and derivative payables with the same counterparty and the related cash collateral when a legally enforceable master netting agreement exists. When we meet this condition, we elect to present such balances on a net basis. Our embedded derivative contracts do not meet the accounting guidance permitting netting and therefore balances are presented gross.
	We use master netting agreements to mitigate counterparty credit risk in derivative transactions. A master netting agreement is a contract with a counterparty that permits multiple transactions governed by that contract to be cancelled and settled with a single net balance paid to either party in the event of default or other termination event outside the normal course of business, such as a ratings downgrade of either party to the contract.
	Our reciprocal collateral agreements require the transfer of cash collateral to the party in a net asset position across all transactions governed by the master netting agreement. Upon default, the collateral agreement grants the party in a net asset position the right to set-off amounts receivable against any posted collateral.
Foreign Currency Transactions	'
	Foreign Currency Transactions
	Certain transactions we have entered into related to debt are denominated in foreign currencies. If the debt is not in a designated hedge accounting relationship, the debt is translated into U.S. dollars using the applicable exchange rate at the transaction date and retranslated at each balance sheet date using the exchange rate in effect at that date. Gains and losses related to foreign currency transactions are included in interest expense in the Consolidated Statement of Income. Payments on debt in the Consolidated Statement of Cash Flows include repayment of principal and the net amount of exchange of notional on currency swaps that economically hedge these transactions. Proceeds from issuance of debt in the Consolidated Statement of Cash Flows include both the proceeds from the initial issuance of debt and the net amount of exchange of notional on currency swaps that economically hedge these transactions.
Risk Transfer	'
	Risk Transfer
	Our insurance operations transfers certain risks to protect us against the impact of unpredictable high severity losses. The amounts recoverable from reinsurers and other companies that assume liabilities relating to our insurance operations are determined in a manner consistent with the related reinsurance or risk transfer agreement. Amounts recoverable from reinsurers and other companies on unpaid losses are recorded as a receivable but are not collectible until the losses are paid. Revenues related to risks transferred are recognized on the same basis as the related revenues from the underlying agreements. Covered losses are recorded as a reduction to insurance losses and loss adjustment expenses.
Income Taxes	'
	Income Taxes
	We use the liability method of accounting for income taxes under which deferred tax assets and liabilities are adjusted to reflect changes in tax rates and laws in the period such changes are enacted resulting in adjustments to the current fiscal year's provision for income taxes.
	TMCC files a consolidated federal income tax return with its subsidiaries and TFSA. TMCC files either separate or consolidated/combined state income tax returns with Toyota Motor North America (“TMA”), TFSA, or subsidiaries of TMCC. State income tax expense is generally recognized as if TMCC and its subsidiaries filed their tax returns on a stand-alone basis. In those states where TMCC and its subsidiaries join in the filing of consolidated or combined income tax returns, TMCC and its subsidiaries are allocated their share of the total income tax expense based on combined allocation/apportionment factors and separate company income or loss. Based on the federal and state tax sharing agreements, TFSA and TMCC and its subsidiaries pay for their share of the income tax expense and are reimbursed for the benefit of any of their tax losses utilized in the federal and state income tax returns.
New Accounting Guidance	'
	New Accounting Guidance
	In July 2013, the Financial Accounting Standards Board (“FASB”) issued new guidance which requires an unrecognized tax benefit, or a portion of an unrecognized tax benefit, to be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. This accounting guidance is effective for us on April 1, 2014. The adoption of this guidance will not have a material impact on our consolidated financial statements as our current disclosure is consistent with the requirements of the new guidance.
	In February 2013, the FASB issued new guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, except for certain obligations addressed within existing guidance in U.S. GAAP. Specifically, the new guidance requires an entity to measure these obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. Additionally, the guidance requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations within the footnotes to its financial statements. Currently no such recognition, measurement, and disclosure requirement exists under U.S. GAAP. This accounting guidance is effective for us on April 1, 2014. The adoption of this guidance will not have a material impact on our consolidated financial statements.
	In May 2014, the FASB issued new guidance on the recognition of revenue from contracts with customers.  This comprehensive standard will replace all existing revenue recognition guidance.  This accounting guidance is effective for us on April 1, 2017.  We are currently evaluating the impact of this guidance on our consolidated financial statements.
Recently Adopted Accounting Guidance	'
	Recently Adopted Accounting Guidance
	In July 2013, we adopted new FASB accounting guidance which permits the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) to be used as a benchmark interest rate for hedge accounting purposes. The new guidance also removes the restriction on using different benchmark rates for similar hedges. The adoption of this guidance did not have a material impact on our consolidated financial statements.
	In April 2013, we adopted new FASB accounting guidance that requires disclosures about offsetting assets and liabilities for derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions. The guidance retains the current U.S. GAAP model that allows companies the option to present net in their balance sheets derivatives that are subject to a legally enforceable netting arrangement with the same party, where rights of set-off are available, including in the event of default or bankruptcy. However, the guidance adds new disclosure requirements to improve transparency in the reporting of how companies mitigate credit risk, including disclosure of related collateral pledged or received. The adoption of this guidance did not have a material impact on our consolidated financial statements.
	In April 2013, we adopted new FASB accounting guidance that requires us to disclose significant amounts reclassified out of each component of accumulated other comprehensive income and the affected income statement line item, only if the item reclassified is required to be reclassified to net income in its entirety. The adoption of this guidance did not have a material impact on our consolidated financial statements.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Mar. 31, 2014
Fair Value Measurements [Abstract]	'
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	'
	As of March 31, 2014
						Fair value measurements on a recurring basis
											Counterparty
	(Dollars in millions)				Level 1		Level 2		Level 3		netting & collateral		Fair value
	Cash equivalents:
		Money market instruments			$	730	$	694	$	-	$	-	$	1,424
		Certificates of deposit				-		1,437		-		-		1,437
		Commercial paper				-		708		-		-		708
		Cash equivalents total				730		2,839		-		-		3,569
	Restricted Cash Equivalents- money market instruments					1,077		-		-		-		1,077
	Available-for-sale securities:
		Debt instruments:
			U.S. government and agency obligations			398		252		2		-		652
			Municipal debt securities			-		11		-		-		11
			Certificates of deposit			-		1,599		-		-		1,599
			Commercial paper			-		507		-		-		507
			Corporate debt securities			-		157		12		-		169
			Mortgage-backed securities:
				U.S. government agency		-		60		-		-		60
				Non-agency residential		-		-		5		-		5
				Non-agency commercial		-		-		43		-		43
			Asset-backed securities			-		-		27		-		27
		Equity instruments:
			Fixed income mutual funds:
				Short-term sector fund		-		44		-		-		44
				U.S. government sector fund		-		327		-		-		327
				Municipal sector fund		-		22		-		-		22
				Investment grade corporate sector fund		-		316		-		-		316
				High-yield sector fund		-		45		-		-		45
				Real return sector fund		-		274		-		-		274
				Mortgage sector fund		-		520		-		-		520
				Asset-backed securities sector fund		-		50		-		-		50
				Emerging market sector fund		-		66		-		-		66
				International sector fund		-		171		-		-		171
			Equity mutual fund			481		-		-		-		481
		Available-for-sale securities total				879		4,421		89		-		5,389
		Derivative assets:
			Foreign currency swaps			-		804		70		-		874
			Interest rate swaps			-		358		3		-		361
			Counterparty netting and collateral			-		-		-		-1,186		-1,186
		Derivative assets total				-		1,162		73		-1,186		49
	Assets at fair value					2,686		8,422		162		-1,186		10,084
		Derivative liabilities:
			Foreign currency swaps			-		-252		-		-		-252
			Interest rate swaps			-		-553		-		-		-553
			Counterparty netting and collateral			-		-		-		799		799
	Liabilities at fair value					-		-805		-		799		-6
	Net assets at fair value				$	2,686	$	7,617	$	162	$	-387	$	10,078
	Note 2 – Fair Value Measurements (Continued)
	As of March 31, 2013
					Fair value measurements on a recurring basis
											Counterparty
	(Dollars in millions)				Level 1		Level 2		Level 3		netting & collateral		Fair value
	Cash equivalents:
		Money market instruments			$	900	$	608	$	0	$	0	$	1,508
		Certificates of deposit				0		1,945		0		0		1,945
		Commercial paper				0		798		0		0		798
		Cash equivalents total				900		3,351		0		0		4,251
	Available-for-sale securities:
		Debt instruments:
			U.S. government and agency obligations			42		62		0		0		104
			Municipal debt securities			0		16		0		0		16
			Certificates of deposit			0		2,041		0		0		2,041
		Commercial paper			0		495		0		0		495
		Foreign government debt securities			0		3		0		0		3
		Corporate debt securities			0		124		4		0		128
		Mortgage-backed securities:
			U.S. government agency		0		87		0		0		87
			Non-agency residential		0		0		5		0		5
			Non-agency commercial		0		0		51		0		51
		Asset-backed securities			0		0		13		0		13
	Equity instruments:
		Fixed income mutual funds:
			Short-term sector fund		0		43		0		0		43
			U.S. government sector fund		0		312		0		0		312
			Municipal sector fund		0		22		0		0		22
			Investment grade corporate sector fund		0		327		0		0		327
			High-yield sector fund		0		42		0		0		42
			Real return sector fund		0		293		0		0		293
			Mortgage sector fund		0		648		0		0		648
			Asset-backed securities sector fund		0		47		0		0		47
			Emerging market sector fund		0		66		0		0		66
			International sector fund		0		170		0		0		170
		Equity mutual fund			484		0		0		0		484
	Available-for-sale securities total				526		4,798		73		0		5,397
	Derivative assets:
		Foreign currency swaps			0		1,076		63		0		1,139
		Interest rate swaps			0		568		12		0		580
		Counterparty netting and collateral			0		0		0		-1,661		-1,661
	Derivative assets total				0		1,644		75		-1,661		58
Assets at fair value					1,426		9,793		148		-1,661		9,706
	Derivative liabilities:
		Foreign currency swaps			0		-123		-8		0		-131
		Interest rate swaps			0		-766		0		0		-766
		Counterparty netting and collateral			0		0		0		892		892
	Derivative liabilities total				0		-889		-8		892		-5
	Embedded derivative liabilities				0		0		-12		0		-12
Liabilities at fair value					0		-889		-20		892		-17
Net assets at fair value				$	1,426	$	8,904	$	128	$	-769	$	9,689
Assets and Liabilities Measured on Recurring Basis Using Significant Unobservable Inputs	'
	Year Ended March 31, 2014
				Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
				Available-for-sale securities													Derivatives								Total net assets (liabilities)
				U.S.										Total									Total
				government		Corporate			Mortgage		Asset-			available-			Interest		Foreign		Embedded		derivative
				and agency		debt			backed		backed			for-sale			rate		currency		derivatives,		assets
	(Dollars in millions)			obligations		securities			securities		securities			securities			swaps		swaps		net		(liabilities)
	Fair value, April 1, 2013			$	-	$		4	$	56	$	13		$	73		$	12	$	55	$	-12	$	55	$	128
	Total gains (losses)
			Included in earnings		-			-		-		-			-			5		17		12		34		34
			Included in other
			comprehensive income		-			-		-2		-			-2			-		-		-		-		-2
	Purchases, issuances, sales, and
		settlements
			Purchases		-			3		7		16			26			-		-		-		-		26
			Issuances		-			-		-		-			-			-		-		-		-		-
			Sales		-			-		-8		-			-8			-		-		-		-		-8
			Settlements		-			-		-5		-2			-7			-14		-2		-		-16		-23
	Transfers in to Level 3				2			7		-		-			9			-		-		-		-		9
	Transfers out of Level 3				-			-2		-		-			-2			-		-		-		-		-2
	Fair value, March 31, 2014			$	2	$		12	$	48	$	27		$	89		$	3	$	70	$	-	$	73	$	162
	The amount of total (losses)/gains
	for the period included
	in earnings attributable to the
	change in unrealized gains or
	losses related to assets still held
	at the reporting date																$	-2	$	23	$	-	$	21	$	21
	Note 2 – Fair Value Measurements (Continued)
	Year Ended March 31, 2013
				Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
				Available-for-sale securities										Derivatives								Total net assets (liabilities)
											Total									Total
				Corporate		Mortgage			Asset-		available-			Interest			Foreign	Embedded		derivative
				debt		backed			backed		for-sale			rate			currency	derivatives,		assets
	(Dollars in millions)			securities		securities			securities		securities			swaps			swaps	net		(liabilities)
	Fair value, April 1, 2012			$	1	$	19	$	1		$	21		$	13	$	69	$	-24	$	58	$	79
	Total gains
			Included in earnings		-		-		-			-			2		11		12		25		25
			Included in other
			comprehensive income		-		-		-			-			-		-		-		-		-
	Purchases, issuances, sales, and
		settlements
			Purchases		-		37		7			44			-		-		-		-		44
			Issuances		-		-		-			-			-		-		-		-		-
			Sales		-		-6		-1			-7			-		-		-		-		-7
			Settlements		-		-7		-5			-12			-3		-25		-		-28		-40
	Transfers in to Level 3				3		13		11			27			-		-		-		-		27
	Transfers out of Level 3				-		-		-			-			-		-		-		-		-
	Fair value, March 31, 2013			$	4	$	56	$	13		$	73		$	12	$	55	$	-12	$	55	$	128
	The amount of total gains
	for the period included
	in earnings attributable to the
	change in unrealized gains or
	losses related to assets still held
	at the reporting date													$	2	$	8	$	1	$	11	$	11
Carrying Value of Certain Financial Instruments	'
						Fair value measurement hierarchy
				Carrying								Total Fair
	(Dollars in millions)			value		Level 1		Level 2		Level 3		Value
	As of March 31, 2014
	Financial assets
		Finance receivables, net
			Retail loan	$	48,892	$	-	$	-	$	49,392	$	49,392
			Commercial		174		-		-		160		160
			Wholesale		9,344		-		-		9,391		9,391
			Real estate		4,601		-		-		4,552		4,552
			Working capital		1,802		-		-		1,807		1,807
	Financial liabilities
		Commercial paper		$	27,709	$	-	$	27,709	$	-	$	27,709
		Unsecured notes and loans payable			49,500		-		49,697		736		50,433
		Secured notes and loans payable			8,158		-		-		8,165		8,165
	Note 2 - Fair Value Measurements (Continued)
						Fair value measurement hierarchy
				Carrying								Total Fair
	(Dollars in millions)			value		Level 1		Level 2		Level 3		Value
	As of March 31, 2013
	Financial assets
		Finance receivables, net
			Retail loan	$	47,312	$	-	$	-	$	48,313	$	48,313
			Commercial		134		-		-		126		126
			Wholesale		8,620		-		-		8,644		8,644
			Real estate		4,531		-		-		4,480		4,480
			Working capital		1,695		-		-		1,708		1,708
	Financial liabilities
		Commercial paper		$	24,590	$	-	$	24,590	$	-	$	24,590
		Unsecured notes and loans payable			47,233		-		47,901		874		48,775
		Secured notes and loans payable			7,009		-		-		7,016		7,016

Investments_in_Marketable_Secu1

Investments in Marketable Securities (Tables)	12 Months Ended
	Mar. 31, 2014
Investments in Marketable Securities [Abstract]	'
Summary of Investments in Marketable Securities	'
					31-Mar-14
					Amortized			Unrealized			Unrealized			Fair
	(Dollars in millions)				cost			gains			losses			value
	Available-for-sale securities:
		Debt instruments:
			U.S. government and agency obligations		$	652		$	1		$	-1		$	652
			Municipal debt securities			10			1			-			11
			Certificates of deposit			1,599			-			-			1,599
			Commercial paper			507			-			-			507
			Corporate debt securities			164			6			-1			169
			Mortgage-backed securities:
				U.S. government agency		60			1			-1			60
				Non-agency residential		4			1			-			5
				Non-agency commercial		44			1			-2			43
			Asset-backed securities			27			-			-			27
		Equity instruments:
			Fixed income mutual funds:
				Short-term sector fund		41			3			-			44
				U.S. government sector fund		329			-			-2			327
				Municipal sector fund		21			1			-			22
				Investment grade corporate sector fund		283			33			-			316
				High-yield sector fund		38			7			-			45
				Real return sector fund		275			-			-1			274
				Mortgage sector fund		519			1			-			520
				Asset-backed securities sector fund		40			10			-			50
				Emerging market sector fund		65			1			-			66
				International sector fund		170			2			-1			171
			Equity mutual fund			217			264			-			481
	Total investments in marketable securities				$	5,065		$	333		$	-9		$	5,389
	Note 3 – Investments in Marketable Securities (Continued)
						31-Mar-13
					Amortized			Unrealized			Unrealized			Fair
	(Dollars in millions)				cost			gains			losses			value
	Available-for-sale securities:
		Debt instruments:
			U.S. government and agency obligations		$	101		$	3		$	-		$	104
			Municipal debt securities			14			2			-			16
			Certificates of deposit			2,040			1			-			2,041
			Commercial paper			495			-			-			495
			Foreign government debt securities			3			-			-			3
			Corporate debt securities			122			6			-			128
			Mortgage-backed securities:
				U.S. government agency		83			4			-			87
				Non-agency residential		4			1			-			5
				Non-agency commercial		50			1			-			51
			Asset-backed securities			13			-			-			13
		Equity instruments:
			Fixed income mutual funds:
				Short-term sector fund		40			3			-			43
				U.S. government sector fund		296			16			-			312
				Municipal sector fund		19			3			-			22
				Investment grade corporate sector fund		273			54			-			327
				High-yield sector fund		34			8			-			42
				Real return sector fund		284			9			-			293
				Mortgage sector fund		663			-			-15			648
				Asset-backed securities sector fund		38			9			-			47
				Emerging market sector fund		63			3			-			66
				International sector fund		163			7			-			170
			Equity mutual fund			259			225			-			484
	Total investments in marketable securities				$	5,057		$	355		$	-15		$	5,397
Summary of the aging of fair value and gross unrealized losses for AFS securities	'
							Less than 12 months as of
							31-Mar-14						31-Mar-13
							Fair			Unrealized			Fair			Unrealized
	(Dollars in millions)						value			losses			value			losses
	Available-for-sale securities:
		Debt instruments:
				U.S. government and agency
					obligations		$	33		$	-1		$	-		$	-
				Corporate debt securities				43			-1			-			-
				Mortgage backed securities:
					U.S. government agency			35			-1			-			-
		Equity instruments:
			Fixed income mutual funds:
				U.S. government sector fund				270			-2			-			-
				Real return sector fund				268			-1			-			-
				Mortgage sector fund				-			-			532			-12
				International sector fund				138			-1			-			-
	Total investments in marketable securities						$	787		$	-7		$	532		$	-12
Schedule of realized gains and losses on sales from AFS	'
				Years Ended March 31,
	(Dollars in millions)			2014		2013		2012
	Available-for-sale securities:
		Realized gains on sales	$	59	$	23	$	16
		Realized losses on sales	$	-4	$	-2	$	-41
		Other-than-temporary impairment	$	-55	$	-	$	-
Summary of Contractual Maturities of Available-for-Sale Securities	'
			Due in 1 Year or					Due after 1 Year					Due after 5 Years
			Less					through 5 Years					through 10 Years					Due after 10 Years				Total
	(Dollars in millions)		Amount			Yield		Amount			Yield		Amount			Yield		Amount		Yield		Amount		Yield
	Fair Value of Available-for-Sale Securities:
	Debt instruments:
	U.S. government and
		agency obligations	$	570		0.13	%	$	59		1.57	%	$	23		1.61	%	$	-	0	%	$	652	0.81	%
	Municipal debt securities			-		0			-		0			2		5.58			9	5.57			11	5.58
	Certificates of deposit			1,599		0.23			-		0			-		0			-	0			1,599	0.23
	Commercial paper			507		0.17			-		0			-		0			-	0			507	0.17
	Corporate debt
		securities		2		5.51			63		3.67			64		3.75			40	4.68			169	3.9
	Mortgage-backed securities:
		U.S. government agency		-		0			1		5.78			3		3.45			56	3.45			60	3.47
		Non-agency residential		-		0			-		0			-		0			5	9.49			5	9.49
		Non-agency commercial		-		0			3		2.24			1		3.28			39	3.11			43	3.06
	Asset-backed securities			-		0			5		0.75			4		1.88			18	2.66			27	2.08
	Debt instruments total			2,678		0.2			131		2.59			97		3.2			167	3.87			3,073	0.7
	Equity instruments:
	Fixed income mutual funds																						1,835	4.41
	Equity mutual funds																						481	4.27
	Equity instruments total			-					-					-					-				2,316	4.38
	Total fair value		$	2,678		0.2	%	$	131		2.59	%	$	97		3.2	%	$	167	3.87	%	$	5,389	2.28	%
	Total amortized cost		$	2,679				$	127				$	97				$	164			$	5,065

Finance_Receivables_Net_Tables

Finance Receivables, Net (Tables)	12 Months Ended
	Mar. 31, 2014
Finance Receivables, Net [Abstract]	'
Net Financing Receivables	'
	(Dollars in millions)			31-Mar-14			31-Mar-13
	Retail receivables			$	40,216		$	40,508
	Pledged retail receivables				9,633			7,669
	Dealer financing				15,925			14,995
					65,774			63,172
	Deferred origination (fees) and costs, net				651			634
	Deferred income				-863			-794
	Allowance for credit losses
		Retail and pledged retail receivables			-298			-338
		Dealer financing			-88			-107
			Total allowance for credit losses		-386			-445
	Finance receivables, net			$	65,176		$	62,567
Contractual Maturities on Retail Receivables and Dealer Financing	'
	Contractual maturities on retail receivables and dealer financing are as follows (dollars in millions):
					Contractual maturities
	Years ending March 31,				Retail receivables			Dealer financing
	2015				$	14,336		$	11,345
	2016					12,719			1,546
	2017					10,397			1,020
	2018					7,473			731
	2019					3,768			806
	Thereafter					1,150			477
	Total				$	49,843		$	15,925
Finance Receivable Credit Quality Indicators	'
	Note 4 - Finance Receivables, Net (Continued)
	The tables below present each credit quality indicator by class of finance receivable as of March 31, 2014 and 2013:
			Retail Loan						Commercial
	(Dollars in millions)		31-Mar-14			31-Mar-13			31-Mar-14			31-Mar-13
	Aging of finance receivables:
		Current	$	48,828		$	47,236		$	432		$	362
		30-59 days past due		459			454			6			6
		60-89 days past due		90			87			1			1
		90 days or greater past due		33			31			-			-
	Total		$	49,410		$	47,808		$	439		$	369
			Wholesale						Real Estate						Working Capital
	(Dollars in millions)		31-Mar-14			March 31, 20131			31-Mar-14			31-Mar-13			31-Mar-14			31-Mar-13
	Credit quality indicators:
		Performing	$	8,129		$	7,740		$	3,791		$	3,968		$	1,642		$	1,616
		Credit Watch		1,282			915			855			583			158			80
		At Risk		24			33			12			28			25			28
		Default		1			1			-			1			6			2
	Total		$	9,436		$	8,689		$	4,658		$	4,580		$	1,831		$	1,726
	1Certain prior period amounts have been reclassified to conform to the current period presentation.
Summary of Investment in Impaired Loans by Class of Finance Receivable	'
	Note 4 – Finance Receivables, Net (Continued)
	Impaired Finance Receivables
	The following table summarizes the information related to our impaired loans by class of finance receivable as of March 31, 2014 and 2013:
		Impaired												Individually Evaluated
		Finance Receivables						Unpaid Principal Balance						Allowance
	(Dollars in millions)	2014			2013			2014			2013			2014			2013
	Impaired account balances individually evaluated for impairment with an allowance:
	Wholesale	$	13		$	16		$	13		$	16		$	1		$	3
	Real estate		27			33			27			33			8			7
	Working capital		23			24			23			24			22			23
	Total	$	63		$	73		$	63		$	73		$	31		$	33
	Impaired account balances individually evaluated for impairment without an allowance:
	Wholesale	$	51		$	66		$	51		$	66
	Real estate		90			97			90			97
	Working capital		4			5			4			5
	Total	$	145		$	168		$	145		$	168
	Impaired account balances aggregated and evaluated for impairment:
	Retail loan	$	322		$	415		$	318		$	410
	Commercial		1			1			1			1
	Total	$	323		$	416		$	319		$	411
	Total impaired account balances:
	Retail loan	$	322		$	415		$	318		$	410
	Commercial		1			1			1			1
	Wholesale		64			82			64			82
	Real estate		117			130			117			130
	Working capital		27			29			27			29
	Total	$	531		$	657		$	527		$	652
			Average Impaired Finance Receivables						Interest Income Recognized
			Years ended March 31,						Years ended March 31,
	(Dollars in millions)		2014			2013			2014			2013
	Impaired account balances individually evaluated for impairment with an allowance:
	Wholesale		$	16		$	22		$	-		$	-
	Real estate			32			75			1			1
	Working capital			24			24			2			1
	Total		$	72		$	121		$	3		$	2
	Impaired account balances individually evaluated for impairment without an allowance:
	Wholesale		$	59		$	63		$	1		$	2
	Real estate			93			59			4			4
	Working capital			4			2			-			-
	Total		$	156		$	124		$	5		$	6
	Impaired account balances aggregated and evaluated for impairment:
	Retail loan		$	368		$	462		$	27		$	37
	Commercial			1			1			-			-
	Total		$	369		$	463		$	27		$	37
	Total impaired account balances:
	Retail loan		$	368		$	462		$	27		$	37
	Commercial			1			1			-			-
	Wholesale			75			85			1			2
	Real estate			125			134			5			5
	Working capital			28			26			2			1
	Total		$	597		$	708		$	35		$	45

Investments_in_Operating_Lease1

Investments in Operating Leases, Net (Tables)	12 Months Ended
	Mar. 31, 2014
Investments in Operating Leases, Net [Abstract]	'
Investments in Operating Leases, Net	'
	Investments in operating leases, net consisted of the following:
	(Dollars in millions)	31-Mar-14		31-Mar-13
	Investments in operating leases	$	31,023	$	25,957
	Pledged investments in operating leases		248		630
			31,271		26,587
	Deferred origination (fees) and costs, net		-146		-125
	Deferred income		-826		-609
	Accumulated depreciation		-5,462		-5,387
	Allowance for credit losses		-68		-82
	Investments in operating leases, net	$	24,769	$	20,384
Future Minimum Lease Rentals on Operating Leases	'
	Future minimum lease rentals on operating leases are as follows (dollars in millions):
		Future minimum
	Years ending March 31,	rentals on operating leases
	2015	$	4,220
	2016		2,912
	2017		1,093
	2018		193
	2019		29
	Thereafter		1
	Total	$	8,448
	A portion of our operating lease contracts has historically terminated prior to maturity. Future minimum rentals shown above should not be considered indicative of future cash collections.

Allowance_for_Credit_Losses_Ta

Allowance for Credit Losses (Tables)	12 Months Ended
	Mar. 31, 2014
Allowance for Credit Losses [Abstract]	'
Allowance for Credit Losses on Finance Receivables and Investments in Operating Leases	'
	Note 6 – Allowance for Credit Losses
	The following table provides information related to our allowance for credit losses on finance receivables
	and investments in operating leases:
		Years ended March 31,
	(Dollars in millions)		2014			2013			2012
	Allowance for credit losses at beginning of period		$	527		$	619		$	879
	Provision for credit losses			170			121			-98
	Charge-offs, net of recoveries			-243			-213			-162
	Allowance for credit losses at end of period		$	454		$	527		$	619
Allowance for Credit Losses and Finance Receivables by Portfolio Segment	'
	Fiscal Year Ended March 31, 2014
	(Dollars in millions)		Retail Loan			Commercial			Dealer Products			Total
	Allowance for Credit Losses for Finance Receivables:
	Beginning Balance at April 1, 2013		$	333		$	5		$	107		$	445
	Charge-offs			-263			-2			-		$	-265
	Recoveries			64			1			-			65
	Provisions			162			-2			-19			141
	Ending Balance at March 31, 2014		$	296		$	2		$	88		$	386
	Ending Balance: Individually evaluated for impairment		$	-		$	-		$	31		$	31
	Ending Balance: Collectively evaluated for impairment		$	296		$	2		$	57		$	355
	Gross Finance Receivables:
	Ending Balance at March 31, 2014		$	49,410		$	439		$	15,925		$	65,774
	Ending Balance: Individually evaluated for impairment		$	-		$	-		$	208		$	208
	Ending Balance: Collectively evaluated for impairment		$	49,410		$	439		$	15,717		$	65,566
	Fiscal Year Ended March 31, 2013
	(Dollars in millions)		Retail Loan			Commercial			Dealer Products			Total
	Allowance for Credit Losses for Finance Receivables:
	Beginning Balance at April 1, 2012		$	395		$	10		$	119		$	524
	Charge-offs			-248			-1			-		$	-249
	Recoveries			70			1			-			71
	Provisions			116			-5			-12			99
	Ending Balance at March 31, 2013		$	333		$	5		$	107		$	445
	Ending Balance: Individually evaluated for
	impairment		$	-		$	-		$	33		$	33
	Ending Balance: Collectively evaluated for
	impairment		$	333		$	5		$	74		$	412
	Gross Finance Receivables:
	Ending Balance at March 31, 2013		$	47,808		$	369		$	14,995		$	63,172
	Ending Balance: Individually evaluated for
	impairment		$	-		$	-		$	241		$	241
	Ending Balance: Collectively evaluated for
	impairment		$	47,808		$	369		$	14,754		$	62,931
Past Due Finance Receivables and Investments in Operating Leases	'
	Past Due Finance Receivables and Investments in Operating Leases
	(Dollars in millions)						31-Mar-14				31-Mar-13
	Aggregate balances 60 or more days past due:
		Finance receivables							$	125		$	119
		Operating leases								36			36
	Total								$	161		$	155
Past Due Finance Receivables by Class	'
	(Dollars in millions)	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Finance Receivables		90 Days or Greater Past Due and Accruing
	As of March 31, 2014
	Retail Loan	$	459	$	90	$	33	$	582	$	48,828	$	49,410	$	33
	Commercial		6		1		-		7		432		439		-
	Wholesale		-		-		-		-		9,436		9,436		-
	Real estate		4		1		-		5		4,653		4,658		-
	Working capital		-		-		-		-		1,831		1,831		-
	Total	$	469	$	92	$	33	$	594	$	65,180	$	65,774	$	33
	(Dollars in millions)	30-59 Days Past Due		60-89 Days Past Due		90 Days or Greater Past Due		Total Past Due		Current		Total Finance Receivables		90 Days or Greater Past Due and Accruing
	As of March 31, 2013
	Retail Loan	$	454	$	87	$	31	$	572	$	47,236	$	47,808	$	31
	Commercial		6		1		-		7		362		369		-
	Wholesale		-		-		-		-		8,689		8,689		-
	Real estate		-		-		-		-		4,580		4,580		-
	Working capital		-		-		-		-		1,726		1,726		-
	Total	$	460	$	88	$	31	$	579	$	62,593	$	63,172	$	31

Derivatives_Hedging_Activities1

Derivatives, Hedging Activities and Interest Expense (Tables)	12 Months Ended
	Mar. 31, 2014
Derivatives, Hedging Activities and Interest Expense [Abstract]	'
Derivative Activity Impact on Consolidated Balance Sheet	'
				Hedge accounting						Non-hedge				Total
	As of March 31, 2014			derivatives						accounting derivatives
				Notional			Fair			Notional		Fair		Notional		Fair
	(Dollars in millions)							value					value				value
	Other assets
	Interest rate swaps			$	465		$	25		$	25,942	$	336	$	26,407	$	361
	Foreign currency swaps				852			342			7,374		532		8,226		874
		Total		$	1,317		$	367		$	33,316	$	868	$	34,633	$	1,235
	Counterparty netting and collateral																-1,186
		Carrying value of derivative contracts – Other assets														$	49
	Other liabilities
	Interest rate swaps			$	-		$	-		$	57,689	$	553	$	57,689	$	553
	Interest rate caps				-			-			50		-		50		-
	Foreign currency swaps				157			14			3,822		238		3,979		252
		Total		$	157		$	14		$	61,561	$	791	$	61,718	$	805
	Counterparty netting and collateral																-799
		Carrying value of derivative contracts – Other liabilities														$	6
				Hedge accounting						Non-hedge				Total
	As of March 31, 2013			derivatives						accounting derivatives
				Notional			Fair			Notional		Fair		Notional		Fair
	(Dollars in millions)							value					value				value
	Other Assets
	Interest rate swaps			$	465		$	44		$	22,336	$	536	$	22,801	$	580
	Foreign currency swaps				1,246			491			7,498		648		8,744		1,139
		Total		$	1,711		$	535		$	29,834	$	1,184	$	31,545	$	1,719
	Counterparty netting and collateral																-1,661
		Carrying value of derivative contracts – Other assets														$	58
	Other liabilities
	Interest rate swaps			$	-		$	-		$	51,342	$	766	$	51,342	$	766
	Interest rate caps				-			-			50		-		50		-
	Foreign currency swaps				790			29			3,103		102		3,893		131
	Embedded derivatives				-			-			64		12		64		12
		Total		$	790		$	29		$	54,559	$	880	$	55,349	$	909
	Counterparty netting and collateral																-892
		Carrying value of derivative contracts – Other liabilities														$	17
Derivative Activity Impact on Consolidated Statement of Income	'
					Years ended March 31,
	(Dollars in millions)			2014			2013			2012
	Interest expense on debt			$	1,262		$	1,330		$	1,677
	Interest expense on hedge accounting derivatives				-85			-103			-221
	Interest expense on non-hedge accounting foreign currency
		swaps			-202			-258			-386
	Interest expense on non-hedge accounting interest rate swaps				210			359			606
			Interest expense on debt and derivatives		1,185			1,328			1,676
	Loss (gain) on hedge accounting derivatives:
		Interest rate swaps			20			15			-6
		Foreign currency swaps			8			274			23
			Loss on hedge accounting derivatives		28			289			17
	Less hedged item: change in fair value of fixed rate debt				-31			-299			-38
			Ineffectiveness related to hedge accounting derivatives		-3			-10			-21
	(Gain) loss from foreign currency transactions and non-hedge
	accounting derivatives:
			(Gain) on foreign currency transactions		-45			-430			-182
			Loss (gain) on foreign currency swaps		185			431			-84
			Loss (gain) on interest rate swaps		18			-379			-89
	Total interest expense			$	1,340		$	940		$	1,300
Summary of Total Credit Valuation Adjustment Allocated to Interest Expenses	'
			Years ended March 31,
	(Dollars in millions)		2014			2013			2012
	Gains related to hedge accounting derivatives		$	-		$	-2		$	-3
	Gains on non-hedge accounting foreign currency swaps			-			-			-6
	Total credit valuation adjustment allocated to interest expense		$	-		$	-2		$	-9

Other_Assets_and_Other_Liabili1

Other Assets and Other Liabilities (Tables)	12 Months Ended
	Mar. 31, 2014
Other Assets And Other Liabilties [Abstract]	'
Other Assets and Other Liabilities	'
	Note 8 – Other Assets and Other Liabilities
	Other assets and other liabilities consisted of the following:
	(Dollars in millions)	31-Mar-14		31-Mar-13
	Other assets:
	Notes receivable from affiliates	$	1,172	$	931
	Used vehicles held for sale		139		265
	Deferred charges		116		120
	Income taxes receivable		-		13
	Derivative assets		49		58
	Other assets		394		353
	Total other assets	$	1,870	$	1,740
	Other liabilities:
	Unearned insurance premiums and contract revenues	$	1,665	$	1,528
	Derivative liabilities		6		17
	Accounts payable and accrued expenses		746		685
	Deferred income		332		255
	Other liabilities		139		192
	Total other liabilities	$	2,888	$	2,677

Debt_Tables

Debt (Tables)	12 Months Ended
	Mar. 31, 2014
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)	2014		2013		2014		2013
	Commercial paper	$	27,709	$	24,590	0.18	%	0.24	%
	Unsecured notes and loans payable		49,075		46,707	1.99	%	2.19	%
	Secured notes and loans payable		8,158		7,009	0.54	%	0.6	%
	Carrying value adjustment		425		526
	Total debt	$	85,367	$	78,832	1.26	%	1.43	%
Schedule of Maturities of Long-term Debt	'
		Future
	Years ending March 31,	debt maturities
	2015	$	44,944
	2016		13,718
	2017		7,887
	2018		8,117
	2019		3,506
	Thereafter		7,195
	Total debt	$	85,367

Variable_Interest_Entities_Tab

Variable Interest Entities (Tables)	12 Months Ended
	Mar. 31, 2014
Variable Interest Entities [Abstract]	'
Schedule of Variable Interest Entities, Securitization Transactions Assets and Liabilities	'
		31-Mar-14
				VIE Assets							VIE Liabilities
				Gross		Net
	(Dollars in millions)	Restricted Cash		Securitized Assets			Securitized Assets		Other Assets		Debt		Other Liabilities
	Retail finance receivables	$	624	$	9,633		$	9,501	$	3	$	8,146	$	2
	Investments in operating leases		20		248			156		4		12		-
	Total	$	644	$	9,881		$	9,657	$	7	$	8,158	$	2
		31-Mar-13
				VIE Assets							VIE Liabilities
				Gross		Net
	(Dollars in millions)	Restricted Cash		Securitized Assets			Securitized Assets		Other Assets		Debt		Other Liabilities
	Retail finance receivables	$	458	$	7,669		$	7,556	$	3	$	6,738	$	1
	Investment in operating leases		33		630			434		9		271		-
	Total	$	491	$	8,299		$	7,990	$	12	$	7,009	$	1

Income_Tax_Provision_Tables

Income Tax Provision (Tables)	12 Months Ended
	Mar. 31, 2014
Income Tax Provision [Abstract]	'
Provision for Income Taxes	'
	Note 13 – Income Tax Provision
	The provision for income taxes consisted of the following:
		Years ended March 31,
	(Dollars in millions)	2014		2013		2012
	Current
	Federal	$	-24	$	-15	$	-33
	State		-3		41		7
	Foreign		8		6		9
	Total current		-19		32		-17
	Deferred
	Federal		460		721		830
	State		54		69		123
	Foreign		2		2		1
	Total deferred		516		792		954
	Provision for income taxes	$	497	$	824	$	937
Reconciliation Between U.S. Federal Statutory Tax Rate and Effective Tax Rate	'
		Years ended March 31,
		2014		2013		2012
	Provision for income taxes at U.S. federal statutory tax rate	35	%	35	%	35	%
	State and local taxes (net of federal tax benefit)	3.1	%	3.2	%	3.4	%
	Other	-1.4	%	-	%	0.3	%
	Effective tax rate	36.7	%	38.2	%	38.7	%
Deferred Federal and State Income Tax Liabilities	'
	Note 13 – Income Tax Provision (Continued)
	The net deferred income tax liabilities, by tax jurisdiction, are as follows:
		March 31,
	(Dollars in millions)	2014		2013
	Federal	$	6,217	$	5,763
	State		529		475
	Foreign		1		-2
	Net deferred income tax liability	$	6,747	$	6,236
Deferred Tax Liabilities and Assets	'
	Our net deferred income tax liability consists of the following deferred tax liabilities and assets:
		March 31,
	(Dollars in millions)	2014		2013
	Liabilities:
	Lease transactions	$	7,133	$	6,509
	State taxes		482		446
	Mark-to-market of investments in marketable securities
	and derivatives		138		210
	Other		295		295
	Deferred tax liabilities	$	8,048	$	7,460
	Assets:
	Provision for credit and residual value losses		310		347
	Deferred costs and fees		211		167
	Net operating loss and tax credit carryforwards		742		679
	Other		56		47
	Deferred tax assets		1,319		1,240
	Valuation allowance		-18		-16
	Net deferred tax assets	$	1,301	$	1,224
	Net deferred income tax liability	$	6,747	$	6,236
Change in Unrecognized Tax Benefits	'
		March 31,
	(Dollars in millions)	2014		2013		2012
	Balance at beginning of the year	$	7	$	8	$	6
	Increases related to positions taken during the prior years		-		-		2
	Increases related to positions taken during the current year		-		1		-
	Decreases related to positions taken during the prior years		-1		-		-
	Settlements		-		-2		-
	Balance at end of year	$	6	$	7	$	8

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Mar. 31, 2014
Commitments and Contingencies [Abstract]	'
Commitments and Guarantees	'
	(Dollars in millions)			31-Mar-14		31-Mar-13
	Commitments:
		Credit facilities commitments with
			vehicle and industrial equipment dealers	$	1,295	$	1,106
		Minimum lease commitments			62		74
	Total commitments				1,357		1,180
		Guarantees of affiliate pollution control and solid waste
			disposal bonds		100		100
	Total commitments and guarantees			$	1,457	$	1,280
Future Minimum Lease Payments under Non-cancelable Operating Leases	'
				Future minimum
	Years ending March 31,			lease payments
	2015			$	19
	2016				18
	2017				13
	2018				8
	2019				3
	Thereafter				1
	Total			$	62

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	12 Months Ended
	Mar. 31, 2014
Related Party Transactions [Abstract]	'
Related Party Transactions Included in Consolidated Statement of Income	'
				Years ended March 31,
	(Dollars in millions)			2014			2013			2012
	Net financing revenues:
		Manufacturers’ subvention support and other revenues		$	994		$	940		$	949
		Credit support fees incurred		$	-82		$	-72		$	-33
		Foreign exchange loss on loans payable to affiliates		$	-		$	-39		$	-4
		Interest expense on loans payable to affiliates		$	-3		$	-6		$	-49
	Insurance earned premiums and contract revenues:
		Affiliate insurance premiums and contract revenues		$	131		$	161		$	216
	Investments and other income, net:
		Interest earned on notes receivable from affiliates		$	6		$	6		$	3
	Expenses:
		Shared services charges and other expenses		$	61		$	64		$	67
		Employee benefits expense		$	38		$	30		$	27
Related Party Transactions Included in Consolidated Balance Sheet	'
	Note 15 – Related Party Transactions (Continued)
	(Dollars in millions)			31-Mar-14				31-Mar-13
	Assets:
	Investments in marketable securities
		Investments in affiliates' commercial paper			$	-		$	2
	Finance receivables, net
		Accounts receivable from affiliates			$	74		$	22
		Direct finance receivables from affiliates			$	6		$	6
		Notes receivable under home loan programs			$	15		$	18
		Deferred retail origination costs paid to affiliates			$	1		$	-
		Deferred retail subvention income from affiliates			$	-768		$	-699
	Investments in operating leases, net
		Leases to affiliates			$	7		$	7
		Deferred lease subvention income from affiliates			$	-806		$	-604
	Other assets
		Notes receivable from affiliates			$	1,172		$	931
		Other receivables from affiliates			$	2		$	1
		Subvention support receivable from affiliates			$	159		$	88
	Liabilities:
	Other liabilities
		Unearned affiliate insurance premiums and contract revenues			$	244		$	235
		Accounts payable to affiliates			$	216		$	192
		Notes payable to affiliate			$	22		$	48
	Shareholder’s Equity:
	Dividends paid				$	665		$	1,487
	Stock-based compensation				$	2		$	2
Related Party Transactions Financing Support Provided by Parent and Affiliates	'
			Financing available			Amounts outstanding (USD) at
	Affiliate		to TMCC		31-Mar-14			31-Mar-13
	Toyota Credit Canada Inc.		CAD	1,500		$	-		$	-
	Toyota Motor Finance (Netherlands) B.V.		Euro	1,000			-			-
	Toyota Financial Services Americas Corporation		USD	200			22			48
	Toyota Finance Australia Limited		USD	1,000			-			-
	Total					$	22		$	48
Related Party Transactions Financing Support Provided to Affiliates	'
			Financing made			Amounts outstanding (USD) at
	Affiliate		available by TMCC			31-Mar-14			31-Mar-13
	Toyota Financial Savings Bank		USD	400		$	40		$	35
	Toyota Credit Canada Inc.		CAD	2,500			-			-
	Toyota Motor Finance (Netherlands) B.V.		Euro	1,000			827			419
	Toyota Financial Services Americas Corporation		USD	200			-			-
	Toyota Financial Services Mexico, S.A. de C.V.		USD	500			-			-
	Banco Toyota do Brasil		USD	300			105			127
	Toyota Finance Australia Limited		USD	1,000			200			350
	Total					$	1,172		$	931

Segment_Information_Tables

Segment Information (Tables)	12 Months Ended
	Mar. 31, 2014
Segment Information [Abstract]	'
Schedule of Segment Reporting Information, by Segment	'
			Finance		Insurance			Intercompany
	(Dollars in millions)		operations		operations		eliminations			Total
	Fiscal 2014:
	Total financing revenues		$	7,371	$	-		$	26	$	7,397
	Insurance earned premiums and contract revenues			-		593			-26		567
	Investment and other income, net			98		37			-		135
	Total gross revenues			7,469		630			-		8,099
	Less:
		Depreciation on operating leases		4,012		-			-		4,012
		Interest expense		1,340		-			-		1,340
		Provision for credit losses		170		-			-		170
		Operating and administrative expenses		767		198			-		965
		Insurance losses and loss adjustment expenses		-		258			-		258
		Provision for income taxes		437		60			-		497
	Net income		$	743	$	114		$	-	$	857
	Total assets		$	99,737	$	3,728		$	-725	$	102,740
	Note 16 – Segment Information (Continued)
			Finance		Insurance			Intercompany
	(Dollars in millions)		operations		operations			eliminations		Total
	Fiscal 2013:
	Total financing revenues		$	7,219	$	-		$	25	$	7,244
	Insurance earned premiums and contract revenues			-		596			-25		571
	Investment and other income, net			57		116			-		173
	Total gross revenues			7,276		712			-		7,988
	Less:
		Depreciation on operating leases		3,568		-			-		3,568
		Interest expense		940		-			-		940
		Provision for credit losses		121		-			-		121
		Operating and administrative expenses		734		177			-		911
		Insurance losses and loss adjustment expenses		-		293			-		293
		Provision for income taxes		730		94			-		824
	Net income		$	1,183	$	148		$	-	$	1,331
	Total assets		$	92,504	$	3,502		$	-704	$	95,302
	Fiscal 2012:1
	Total financing revenues		$	7,442	$	-		$	16	$	7,458
	Insurance earned premiums and contract revenues			-		620			-16		604
	Investment and other income, net			44		72			-3		113
	Total gross revenues			7,486		692			-3		8,175
	Less:
		Depreciation on operating leases		3,368		-			-		3,368
		Interest expense		1,303		-			-3		1,300
		Provision for credit losses		-98		-			-		-98
		Operating and administrative expenses		703		154			-		857
		Insurance losses and loss adjustment expenses		-		325			-		325
		Provision for income taxes		860		77			-		937
	Net income		$	1,350	$	136		$	-	$	1,486
	Total assets		$	86,049	$	3,233		$	-369	$	88,913
	1Certain prior period amounts have been reclassified to conform to the current period presentation.

Selected_Quarterly_Financial_D1

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Mar. 31, 2014
Selected Quarterly Financial Data (Unaudited) [Abstract]	'
Selected Quarterly Financial Data (Unaudited)	'
	Note 17 – Selected Quarterly Financial Data (Unaudited)
		First		Second		Third		Fourth
	(Dollars in millions)	Quarter		Quarter		Quarter		Quarter
	Fiscal 2014:
	Total financing revenue	$	1,795	$	1,845	$	1,876	$	1,881
	Depreciation on operating leases		951		966		1,033		1,062
	Interest expense		536		314		386		104
	Net financing revenue		308		565		457		715
	Other income		145		157		209		191
	Provision for credit losses		11		28		63		68
	Expenses		298		301		297		327
	Income before income tax expense		144		393		306		511
	Provision for income taxes		53		149		113		182
	Net income	$	91	$	244	$	193	$	329
	Fiscal 2013:1
	Total financing revenue	$	1,797	$	1,822	$	1,821	$	1,804
	Depreciation on operating leases		855		891		907		915
	Interest expense		58		283		284		315
	Net financing revenue		884		648		630		574
	Other income		185		183		203		173
	Provision for credit losses		16		3		88		14
	Expenses		297		302		306		299
	Income before income tax expense		756		526		439		434
	Provision for income taxes		279		200		156		189
	Net income	$	477	$	326	$	283	$	245

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Business Operations By Geographic Region [Line Items]	'	'
Capital Stock Par Value	'	'
Insurance Policy Term Range	'3 to 120 months	'
Finance Operations [Member] | California	'	'
Business Operations By Geographic Region [Line Items]	'	'
Concentration Percentage	21.00%	'
Finance Operations [Member] | Texas	'	'
Business Operations By Geographic Region [Line Items]	'	'
Concentration Percentage	11.00%	'
Finance Operations [Member] | New York	'	'
Business Operations By Geographic Region [Line Items]	'	'
Concentration Percentage	8.00%	'
Finance Operations [Member] | New Jersey	'	'
Business Operations By Geographic Region [Line Items]	'	'
Concentration Percentage	6.00%	'
Insurance Operations [Member] | California	'	'
Business Operations By Geographic Region [Line Items]	'	'
Concentration Percentage	27.00%	'
Insurance Operations [Member] | New York	'	'
Business Operations By Geographic Region [Line Items]	'	'
Concentration Percentage	7.00%	'
Insurance Operations [Member] | New Jersey	'	'
Business Operations By Geographic Region [Line Items]	'	'
Concentration Percentage	5.00%	'

Fair_Value_Measurements_Financ

Fair Value Measurements (Financial Assets and Liabilities Measured at Fair Value On a Recurring Basis) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	$5,389	$5,397
U.S. government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Transfers from Level 2 to Level 1	0	53
Debt instruments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	3,073	'
Debt instruments [Member] | U.S. government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	652	104
Debt instruments [Member] | Municipal debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	11	16
Debt instruments [Member] | Certificates Of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	1,599	2,041
Debt instruments [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	507	495
Debt instruments [Member] | Foreign government debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	3
Debt instruments [Member] | Corporate debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	169	128
Debt instruments [Member] | U.S. government agency mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	60	87
Debt instruments [Member] | Non-agency residential mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	5	5
Debt instruments [Member] | Non-agency commercial mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	43	51
Debt instruments [Member] | Asset-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	27	13
Equity instruments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	2,316	'
Equity instruments [Member] | Fixed income short-term sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	44	43
Equity instruments [Member] | Fixed income U.S. government sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	327	312
Equity instruments [Member] | Fixed income municipal sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	22	22
Equity instruments [Member] | Investment Grade Corporate Sector Fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	316	327
Equity instruments [Member] | Fixed income high-yield sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	45	42
Equity instruments [Member] | Fixed income real return sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	274	293
Equity instruments [Member] | Fixed income mortgage sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	520	648
Equity instruments [Member] | Fixed income asset-backed securities sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	50	47
Equity instruments [Member] | Fixed income emerging market sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	66	66
Equity instruments [Member] | Fixed income international sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	171	170
Equity instruments [Member] | Equity mutual fund - S&P 500 index [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	481	484
Level 3 [Member] | U.S. government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Reclassification from One Level 3 category to another	2	'
Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	3,569	4,251
Investments in marketable securities	5,389	5,397
Derivative assets	49	58
Total assets	10,084	9,706
Derivative liabilities	'	-5
Embedded derivative liabilities	'	-12
Total liabilities	-6	-17
Total net assets	10,078	9,689
Recurring [Member] | Foreign currency swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	874	1,139
Derivative liabilities	-252	-131
Recurring [Member] | Interest rate swap [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	361	580
Derivative liabilities	-553	-766
Recurring [Member] | Debt instruments [Member] | U.S. government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	652	104
Recurring [Member] | Debt instruments [Member] | Municipal debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	11	16
Recurring [Member] | Debt instruments [Member] | Certificates Of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	1,599	2,041
Recurring [Member] | Debt instruments [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	507	495
Recurring [Member] | Debt instruments [Member] | Foreign government debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	3
Recurring [Member] | Debt instruments [Member] | Corporate debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	169	128
Recurring [Member] | Debt instruments [Member] | U.S. government agency mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	60	87
Recurring [Member] | Debt instruments [Member] | Non-agency residential mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	5	5
Recurring [Member] | Debt instruments [Member] | Non-agency commercial mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	43	51
Recurring [Member] | Debt instruments [Member] | Asset-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	27	13
Recurring [Member] | Equity instruments [Member] | Fixed income short-term sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	44	43
Recurring [Member] | Equity instruments [Member] | Fixed income U.S. government sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	327	312
Recurring [Member] | Equity instruments [Member] | Fixed income municipal sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	22	22
Recurring [Member] | Equity instruments [Member] | Investment Grade Corporate Sector Fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	316	327
Recurring [Member] | Equity instruments [Member] | Fixed income high-yield sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	45	42
Recurring [Member] | Equity instruments [Member] | Fixed income real return sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	274	293
Recurring [Member] | Equity instruments [Member] | Fixed income mortgage sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	520	648
Recurring [Member] | Equity instruments [Member] | Fixed income asset-backed securities sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	50	47
Recurring [Member] | Equity instruments [Member] | Fixed income emerging market sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	66	66
Recurring [Member] | Equity instruments [Member] | Fixed income international sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	171	170
Recurring [Member] | Equity instruments [Member] | Equity mutual fund - S&P 500 index [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	481	484
Recurring [Member] | Money market instruments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	1,424	1,508
Restricted Cash Equivalents - money market instruments	1,077	'
Recurring [Member] | Certificates of deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	1,437	1,945
Recurring [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	708	798
Recurring [Member] | Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	730	900
Investments in marketable securities	879	526
Derivative assets	0	0
Total assets	2,686	1,426
Derivative liabilities	'	0
Embedded derivative liabilities	'	0
Total liabilities	0	0
Total net assets	2,686	1,426
Recurring [Member] | Level 1 [Member] | Foreign currency swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Recurring [Member] | Level 1 [Member] | Interest rate swap [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | U.S. government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	398	42
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | Municipal debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | Certificates Of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | Foreign government debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | Corporate debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | U.S. government agency mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | Non-agency residential mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | Non-agency commercial mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Debt instruments [Member] | Asset-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income short-term sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income U.S. government sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income municipal sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Investment Grade Corporate Sector Fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income high-yield sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income real return sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income mortgage sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income asset-backed securities sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income emerging market sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Fixed income international sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 1 [Member] | Equity instruments [Member] | Equity mutual fund - S&P 500 index [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	481	484
Recurring [Member] | Level 1 [Member] | Money market instruments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	730	900
Restricted Cash Equivalents - money market instruments	1,077	'
Recurring [Member] | Level 1 [Member] | Certificates of deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	0	0
Recurring [Member] | Level 1 [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	0	0
Recurring [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	2,839	3,351
Investments in marketable securities	4,421	4,798
Derivative assets	1,162	1,644
Total assets	8,422	9,793
Derivative liabilities	'	-889
Embedded derivative liabilities	'	0
Total liabilities	-805	-889
Total net assets	7,617	8,904
Recurring [Member] | Level 2 [Member] | Foreign currency swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	804	1,076
Derivative liabilities	-252	-123
Recurring [Member] | Level 2 [Member] | Interest rate swap [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	358	568
Derivative liabilities	-553	-766
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | U.S. government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	252	62
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | Municipal debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	11	16
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | Certificates Of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	1,599	2,041
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	507	495
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | Foreign government debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	3
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | Corporate debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	157	124
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | U.S. government agency mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	60	87
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | Non-agency residential mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | Non-agency commercial mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 2 [Member] | Debt instruments [Member] | Asset-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income short-term sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	44	43
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income U.S. government sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	327	312
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income municipal sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	22	22
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Investment Grade Corporate Sector Fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	316	327
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income high-yield sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	45	42
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income real return sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	274	293
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income mortgage sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	520	648
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income asset-backed securities sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	50	47
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income emerging market sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	66	66
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Fixed income international sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	171	170
Recurring [Member] | Level 2 [Member] | Equity instruments [Member] | Equity mutual fund - S&P 500 index [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 2 [Member] | Money market instruments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	694	608
Restricted Cash Equivalents - money market instruments	0	'
Recurring [Member] | Level 2 [Member] | Certificates of deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	1,437	1,945
Recurring [Member] | Level 2 [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	708	798
Recurring [Member] | Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	0	0
Investments in marketable securities	89	73
Derivative assets	73	75
Total assets	162	148
Derivative liabilities	'	-8
Embedded derivative liabilities	'	-12
Total liabilities	0	-20
Total net assets	162	128
Recurring [Member] | Level 3 [Member] | Foreign currency swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	70	63
Derivative liabilities	0	-8
Recurring [Member] | Level 3 [Member] | Interest rate swap [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	3	12
Derivative liabilities	0	0
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | U.S. government and agency obligations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	2	0
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | Municipal debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | Certificates Of Deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | Foreign government debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | Corporate debt securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	12	4
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | U.S. government agency mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | Non-agency residential mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	5	5
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | Non-agency commercial mortgage-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	43	51
Recurring [Member] | Level 3 [Member] | Debt instruments [Member] | Asset-backed securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	27	13
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income short-term sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income U.S. government sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income municipal sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Investment Grade Corporate Sector Fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income high-yield sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income real return sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income mortgage sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income asset-backed securities sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income emerging market sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Fixed income international sector fund [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Equity instruments [Member] | Equity mutual fund - S&P 500 index [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investments in marketable securities	0	0
Recurring [Member] | Level 3 [Member] | Money market instruments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	0	0
Restricted Cash Equivalents - money market instruments	0	'
Recurring [Member] | Level 3 [Member] | Certificates of deposit [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	0	0
Recurring [Member] | Level 3 [Member] | Commercial paper [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	0	0
Recurring [Member] | Counterparty Netting & Collateral [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative assets	-1,186	-1,661
Total assets	-1,186	-1,661
Derivative liabilities	799	892
Total liabilities	799	892
Total net assets	($387)	($769)

Fair_Value_Measurements_Using_

Fair Value Measurements (Using Significant Unobservable Inputs) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	$128	$79
Gains/(losses) included in earnings	34	25
Gains/(losses) included in other comprehensive income	-2	0
Purchases	26	44
Issuances	0	0
Sales	-8	-7
Settlements	-23	-40
Transfers in to Level 3	9	27
Transfers out of Level 3	-2	0
Fair value,	162	128
The amount of total gains or (losses) for the period included in earnings attributable to the change in unrealized gains or losses related to assets still held at the reporting date	21	11
Available-for-sale securities [Member]	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	73	21
Gains/(losses) included in earnings	0	0
Gains/(losses) included in other comprehensive income	-2	0
Purchases	26	44
Issuances	0	0
Sales	-8	-7
Settlements	-7	-12
Transfers in to Level 3	9	27
Transfers out of Level 3	-2	0
Fair value,	89	73
U.S. government and agency obligations [Member]	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	0	'
Gains/(losses) included in earnings	0	'
Gains/(losses) included in other comprehensive income	0	'
Purchases	0	'
Issuances	0	'
Sales	0	'
Settlements	0	'
Transfers in to Level 3	2	'
Transfers out of Level 3	0	'
Fair value,	2	'
Corporate debt securities [Member]	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	4	1
Gains/(losses) included in earnings	0	0
Gains/(losses) included in other comprehensive income	0	0
Purchases	3	0
Issuances	0	0
Sales	0	0
Settlements	0	0
Transfers in to Level 3	7	3
Transfers out of Level 3	-2	0
Fair value,	12	4
Mortgage-backed securities [Member]	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	56	19
Gains/(losses) included in earnings	0	0
Gains/(losses) included in other comprehensive income	-2	0
Purchases	7	37
Issuances	0	0
Sales	-8	-6
Settlements	-5	-7
Transfers in to Level 3	0	13
Transfers out of Level 3	0	0
Fair value,	48	56
Asset-backed securities [Member]	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	13	1
Gains/(losses) included in earnings	0	0
Gains/(losses) included in other comprehensive income	0	0
Purchases	16	7
Issuances	0	0
Sales	0	-1
Settlements	-2	-5
Transfers in to Level 3	0	11
Transfers out of Level 3	0	0
Fair value,	27	13
Derivative [Member]	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	55	58
Gains/(losses) included in earnings	34	25
Gains/(losses) included in other comprehensive income	0	0
Purchases	0	0
Issuances	0	0
Sales	0	0
Settlements	-16	-28
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair value,	73	55
The amount of total gains or (losses) for the period included in earnings attributable to the change in unrealized gains or losses related to assets still held at the reporting date	21	11
Interest rate swap [Member]	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	12	13
Gains/(losses) included in earnings	5	2
Gains/(losses) included in other comprehensive income	0	0
Purchases	0	0
Issuances	0	0
Sales	0	0
Settlements	-14	-3
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair value,	3	12
The amount of total gains or (losses) for the period included in earnings attributable to the change in unrealized gains or losses related to assets still held at the reporting date	-2	2
Foreign currency swaps [Member]	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	55	69
Gains/(losses) included in earnings	17	11
Gains/(losses) included in other comprehensive income	0	0
Purchases	0	0
Issuances	0	0
Sales	0	0
Settlements	-2	-25
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair value,	70	55
The amount of total gains or (losses) for the period included in earnings attributable to the change in unrealized gains or losses related to assets still held at the reporting date	23	8
Embedded derivative liabilities, net	'	'
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]	'	'
Fair value,	-12	-24
Gains/(losses) included in earnings	12	12
Gains/(losses) included in other comprehensive income	0	0
Purchases	0	0
Issuances	0	0
Sales	0	0
Settlements	0	0
Transfers in to Level 3	0	0
Transfers out of Level 3	0	0
Fair value,	0	-12
The amount of total gains or (losses) for the period included in earnings attributable to the change in unrealized gains or losses related to assets still held at the reporting date	$0	$1

Fair_Value_Measurements_Narrat

Fair Value Measurements (Narratives) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Fair Value Measurements [Abstract]	'	'
Derivative asset counterparty credit valuation adjustment	$1	$1
Derivative liability non-performance credit valuation adjustment	1	1
Nonrecurring [Member] | Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Net finance receivables	$177	$208

Financial_Instruments

Financial Instruments (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Other Quantitative Information	'	'
Finance receivables from related party	$89	$40
Receivables from direct finance leases	274	235
Carrying value [Member]	'	'
Financial liabilities	'	'
Commercial paper	27,709	24,590
Unsecured notes and loans payable	49,500	47,233
Secured notes and loans payable	8,158	7,009
Carrying value [Member] | Retail Loan [Member]	'	'
Financial assets	'	'
Finance receivables, net	48,892	47,312
Carrying value [Member] | Commercial [Member]	'	'
Financial assets	'	'
Finance receivables, net	174	134
Carrying value [Member] | Wholesale [Member]	'	'
Financial assets	'	'
Finance receivables, net	9,344	8,620
Carrying value [Member] | Real estate [Member]	'	'
Financial assets	'	'
Finance receivables, net	4,601	4,531
Carrying value [Member] | Working capital [Member]	'	'
Financial assets	'	'
Finance receivables, net	1,802	1,695
Fair value [Member]	'	'
Financial liabilities	'	'
Commercial paper	27,709	24,590
Unsecured notes and loans payable	50,433	48,775
Secured notes and loans payable	8,165	7,016
Fair value [Member] | Retail Loan [Member]	'	'
Financial assets	'	'
Finance receivables, net	49,392	48,313
Fair value [Member] | Commercial [Member]	'	'
Financial assets	'	'
Finance receivables, net	160	126
Fair value [Member] | Wholesale [Member]	'	'
Financial assets	'	'
Finance receivables, net	9,391	8,644
Fair value [Member] | Real estate [Member]	'	'
Financial assets	'	'
Finance receivables, net	4,552	4,480
Fair value [Member] | Working capital [Member]	'	'
Financial assets	'	'
Finance receivables, net	1,807	1,708
Fair value [Member] | Level 1 [Member]	'	'
Financial liabilities	'	'
Commercial paper	0	0
Unsecured notes and loans payable	0	0
Secured notes and loans payable	0	0
Fair value [Member] | Level 1 [Member] | Retail Loan [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 1 [Member] | Commercial [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 1 [Member] | Wholesale [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 1 [Member] | Real estate [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 1 [Member] | Working capital [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 2 [Member]	'	'
Financial liabilities	'	'
Commercial paper	27,709	24,590
Unsecured notes and loans payable	49,697	47,901
Secured notes and loans payable	0	0
Fair value [Member] | Level 2 [Member] | Retail Loan [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 2 [Member] | Commercial [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 2 [Member] | Wholesale [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 2 [Member] | Real estate [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 2 [Member] | Working capital [Member]	'	'
Financial assets	'	'
Finance receivables, net	0	0
Fair value [Member] | Level 3 [Member]	'	'
Financial liabilities	'	'
Commercial paper	0	0
Unsecured notes and loans payable	736	874
Secured notes and loans payable	8,165	7,016
Fair value [Member] | Level 3 [Member] | Retail Loan [Member]	'	'
Financial assets	'	'
Finance receivables, net	49,392	48,313
Fair value [Member] | Level 3 [Member] | Commercial [Member]	'	'
Financial assets	'	'
Finance receivables, net	160	126
Fair value [Member] | Level 3 [Member] | Wholesale [Member]	'	'
Financial assets	'	'
Finance receivables, net	9,391	8,644
Fair value [Member] | Level 3 [Member] | Real estate [Member]	'	'
Financial assets	'	'
Finance receivables, net	4,552	4,480
Fair value [Member] | Level 3 [Member] | Working capital [Member]	'	'
Financial assets	'	'
Finance receivables, net	$1,807	$1,708

Investments_in_Marketable_Secu2

Investments in Marketable Securities (AFS Securities) (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	$5,065,000,000	$5,057,000,000
Unrealized gains	333,000,000	355,000,000
Unrealized losses	-9,000,000	-15,000,000
Total, fair value	5,389,000,000	5,397,000,000
Investments in affiliates' commercial paper	0	2,000,000
90-day share redemption time period	'90 days	'
Private placement share redemption percentage	1.00%	'
Private placement share redemption amount	250,000	'
Fixed income mutual funds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	1,800,000,000	2,000,000,000
Debt instruments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	3,073,000,000	'
Debt instruments [Member] | U.S. government and agency obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	652,000,000	101,000,000
Unrealized gains	1,000,000	3,000,000
Unrealized losses	-1,000,000	0
Total, fair value	652,000,000	104,000,000
Debt instruments [Member] | Municipal debt securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	10,000,000	14,000,000
Unrealized gains	1,000,000	2,000,000
Unrealized losses	0	0
Total, fair value	11,000,000	16,000,000
Debt instruments [Member] | Certificates Of Deposit [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	1,599,000,000	2,040,000,000
Unrealized gains	0	1,000,000
Unrealized losses	0	0
Total, fair value	1,599,000,000	2,041,000,000
Debt instruments [Member] | Commercial paper [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	507,000,000	495,000,000
Unrealized gains	0	0
Unrealized losses	0	0
Total, fair value	507,000,000	495,000,000
Debt instruments [Member] | Foreign government debt securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	0	3,000,000
Unrealized gains	0	0
Unrealized losses	0	0
Total, fair value	0	3,000,000
Debt instruments [Member] | Corporate debt securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	164,000,000	122,000,000
Unrealized gains	6,000,000	6,000,000
Unrealized losses	-1,000,000	0
Total, fair value	169,000,000	128,000,000
Debt instruments [Member] | U.S. government agency mortgage-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	60,000,000	83,000,000
Unrealized gains	1,000,000	4,000,000
Unrealized losses	-1,000,000	0
Total, fair value	60,000,000	87,000,000
Debt instruments [Member] | Non-agency residential mortgage-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	4,000,000	4,000,000
Unrealized gains	1,000,000	1,000,000
Unrealized losses	0	0
Total, fair value	5,000,000	5,000,000
Debt instruments [Member] | Non-agency commercial mortgage-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	44,000,000	50,000,000
Unrealized gains	1,000,000	1,000,000
Unrealized losses	-2,000,000	0
Total, fair value	43,000,000	51,000,000
Debt instruments [Member] | Asset-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	27,000,000	13,000,000
Unrealized gains	0	0
Unrealized losses	0	0
Total, fair value	27,000,000	13,000,000
Equity instruments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	2,316,000,000	'
Equity instruments [Member] | Fixed income mutual funds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	1,835,000,000	'
Equity instruments [Member] | Fixed income short-term sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	41,000,000	40,000,000
Unrealized gains	3,000,000	3,000,000
Unrealized losses	0	0
Total, fair value	44,000,000	43,000,000
Equity instruments [Member] | Fixed income U.S. government sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	329,000,000	296,000,000
Unrealized gains	0	16,000,000
Unrealized losses	-2,000,000	0
Total, fair value	327,000,000	312,000,000
Equity instruments [Member] | Fixed income municipal sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	21,000,000	19,000,000
Unrealized gains	1,000,000	3,000,000
Unrealized losses	0	0
Total, fair value	22,000,000	22,000,000
Equity instruments [Member] | Investment Grade Corporate Sector Fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	283,000,000	273,000,000
Unrealized gains	33,000,000	54,000,000
Unrealized losses	0	0
Total, fair value	316,000,000	327,000,000
Equity instruments [Member] | Fixed income high-yield sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	38,000,000	34,000,000
Unrealized gains	7,000,000	8,000,000
Unrealized losses	0	0
Total, fair value	45,000,000	42,000,000
Equity instruments [Member] | Fixed income real return sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	275,000,000	284,000,000
Unrealized gains	0	9,000,000
Unrealized losses	-1,000,000	0
Total, fair value	274,000,000	293,000,000
Equity instruments [Member] | Fixed income mortgage sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	519,000,000	663,000,000
Unrealized gains	1,000,000	0
Unrealized losses	0	-15,000,000
Total, fair value	520,000,000	648,000,000
Equity instruments [Member] | Fixed income asset-backed securities sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	40,000,000	38,000,000
Unrealized gains	10,000,000	9,000,000
Unrealized losses	0	0
Total, fair value	50,000,000	47,000,000
Equity instruments [Member] | Fixed income emerging market sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	65,000,000	63,000,000
Unrealized gains	1,000,000	3,000,000
Unrealized losses	0	0
Total, fair value	66,000,000	66,000,000
Equity instruments [Member] | Fixed income international sector fund [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	170,000,000	163,000,000
Unrealized gains	2,000,000	7,000,000
Unrealized losses	-1,000,000	0
Total, fair value	171,000,000	170,000,000
Equity instruments [Member] | Equity mutual fund - S&P 500 index [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	217,000,000	259,000,000
Unrealized gains	264,000,000	225,000,000
Unrealized losses	0	0
Total, fair value	$481,000,000	$484,000,000

Investments_in_Marketable_Secu3

Investments in Marketable Securities (Realized and Unrealized Losses) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
OTTI losses recognized in income	'	'	'
Impairment write-downs	$55	$0	$0
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	787	532	'
Less than 12 months, unrealized losses	-7	-12	'
Corporate debt securities [Member] | Debt instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	43	0	'
Less than 12 months, unrealized losses	-1	0	'
U.S. government and agency obligations [Member] | Debt instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	33	0	'
Less than 12 months, unrealized losses	-1	0	'
U.S. government agency mortgage-backed securities [Member] | Debt instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	35	0	'
Less than 12 months, unrealized losses	-1	0	'
U.S. government sector fund [Member] | Equity instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	270	0	'
Less than 12 months, unrealized losses	-2	0	'
Real return sector fund [Member] | Equity instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	268	0	'
Less than 12 months, unrealized losses	-1	0	'
International sector fund [Member] | Equity instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	138	0	'
Less than 12 months, unrealized losses	-1	0	'
Mortgage sector fund [Member] | Equity instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	0	532	'
Less than 12 months, unrealized losses	0	-12	'
Emerging market sector fund [Member] | Equity instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	0	0	'
Less than 12 months, unrealized losses	0	0	'
High-yield sector fund [Member] | Equity instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	0	0	'
Less than 12 months, unrealized losses	0	0	'
Investment Grade Corporate Sector Fund [Member] | Equity instruments [Member]	'	'	'
Aging of fair value and gross unrealized losses for AFS securities	'	'	'
Less than 12 months, fair value	0	0	'
Less than 12 months, unrealized losses	$0	$0	'

Investments_in_Marketable_Secu4

Investments in Marketable Securities (Realized Gains and Losses On AFS) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Realized gains and losses on sales of available-for-sale securities	'	'	'
Realized gains on sales	$59	$23	$16
Realized losses on sales	-4	-2	-41
Impairment write-downs	($55)	$0	$0

Investments_in_Marketable_Secu5

Investments in Marketable Securities (Naratives) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	$2,678	'
Due after 1 Year through 5 Years, Amount	131	'
Due after 5 Years through 10 Years, Amount	97	'
Due after 10 Years, Amount	167	'
Total, fair value	5,389	5,397
Due in 1 Year or Less, Yield	0.20%	'
Due after 1 Year through 5 Years, Yield	2.59%	'
Due after 5 Years through 10 Years, Yield	3.20%	'
Due after 10 Years, Yield	3.87%	'
Total, Yield	2.28%	'
Due in 1 Year or Less, Amortized Cost	2,679	'
Due after 1 Year through 5 Years, Amortized Cost	127	'
Due after 5 Years through 10 Years, Amortized Cost	97	'
Due after 10 Years, Amortized Cost	164	'
Amortized cost	5,065	5,057
Debt securities on deposit with state insurance authorities	6	6
Debt securities with amortized cost on deposit with state insurance authorities	6	6
Fixed income mutual funds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	1,800	2,000
Debt instruments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	2,678	'
Due after 1 Year through 5 Years, Amount	131	'
Due after 5 Years through 10 Years, Amount	97	'
Due after 10 Years, Amount	167	'
Total, fair value	3,073	'
Due in 1 Year or Less, Yield	0.20%	'
Due after 1 Year through 5 Years, Yield	2.59%	'
Due after 5 Years through 10 Years, Yield	3.20%	'
Due after 10 Years, Yield	3.87%	'
Total, Yield	0.70%	'
Debt instruments [Member] | U.S. government and agency obligations [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	570	'
Due after 1 Year through 5 Years, Amount	59	'
Due after 5 Years through 10 Years, Amount	23	'
Due after 10 Years, Amount	0	'
Total, fair value	652	104
Due in 1 Year or Less, Yield	0.13%	'
Due after 1 Year through 5 Years, Yield	1.57%	'
Due after 5 Years through 10 Years, Yield	1.61%	'
Due after 10 Years, Yield	0.00%	'
Total, Yield	0.81%	'
Amortized cost	652	101
Debt instruments [Member] | Municipal debt securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	0	'
Due after 1 Year through 5 Years, Amount	0	'
Due after 5 Years through 10 Years, Amount	2	'
Due after 10 Years, Amount	9	'
Total, fair value	11	16
Due in 1 Year or Less, Yield	0.00%	'
Due after 1 Year through 5 Years, Yield	0.00%	'
Due after 5 Years through 10 Years, Yield	5.58%	'
Due after 10 Years, Yield	5.57%	'
Total, Yield	5.58%	'
Amortized cost	10	14
Debt instruments [Member] | Certificates of deposit [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	1,599	'
Due after 1 Year through 5 Years, Amount	0	'
Due after 5 Years through 10 Years, Amount	0	'
Due after 10 Years, Amount	0	'
Total, fair value	1,599	2,041
Due in 1 Year or Less, Yield	0.23%	'
Due after 1 Year through 5 Years, Yield	0.00%	'
Due after 5 Years through 10 Years, Yield	0.00%	'
Due after 10 Years, Yield	0.00%	'
Total, Yield	0.23%	'
Amortized cost	1,599	2,040
Debt instruments [Member] | Commercial paper [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	507	'
Due after 1 Year through 5 Years, Amount	0	'
Due after 5 Years through 10 Years, Amount	0	'
Due after 10 Years, Amount	0	'
Total, fair value	507	495
Due in 1 Year or Less, Yield	0.17%	'
Due after 1 Year through 5 Years, Yield	0.00%	'
Due after 5 Years through 10 Years, Yield	0.00%	'
Due after 10 Years, Yield	0.00%	'
Total, Yield	0.17%	'
Amortized cost	507	495
Debt instruments [Member] | Foreign government debt securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	0	3
Amortized cost	0	3
Debt instruments [Member] | Corporate debt securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	2	'
Due after 1 Year through 5 Years, Amount	63	'
Due after 5 Years through 10 Years, Amount	64	'
Due after 10 Years, Amount	40	'
Total, fair value	169	128
Due in 1 Year or Less, Yield	5.51%	'
Due after 1 Year through 5 Years, Yield	3.67%	'
Due after 5 Years through 10 Years, Yield	3.75%	'
Due after 10 Years, Yield	4.68%	'
Total, Yield	3.90%	'
Amortized cost	164	122
Debt instruments [Member] | U.S. government agency mortgage-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	0	'
Due after 1 Year through 5 Years, Amount	1	'
Due after 5 Years through 10 Years, Amount	3	'
Due after 10 Years, Amount	56	'
Total, fair value	60	87
Due in 1 Year or Less, Yield	0.00%	'
Due after 1 Year through 5 Years, Yield	5.78%	'
Due after 5 Years through 10 Years, Yield	3.45%	'
Due after 10 Years, Yield	3.45%	'
Total, Yield	3.47%	'
Amortized cost	60	83
Debt instruments [Member] | Non-agency residential mortgage-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	0	'
Due after 1 Year through 5 Years, Amount	0	'
Due after 5 Years through 10 Years, Amount	0	'
Due after 10 Years, Amount	5	'
Total, fair value	5	5
Due in 1 Year or Less, Yield	0.00%	'
Due after 1 Year through 5 Years, Yield	0.00%	'
Due after 5 Years through 10 Years, Yield	0.00%	'
Due after 10 Years, Yield	9.49%	'
Total, Yield	9.49%	'
Amortized cost	4	4
Debt instruments [Member] | Non-agency commercial mortgage-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	0	'
Due after 1 Year through 5 Years, Amount	3	'
Due after 5 Years through 10 Years, Amount	1	'
Due after 10 Years, Amount	39	'
Total, fair value	43	51
Due in 1 Year or Less, Yield	0.00%	'
Due after 1 Year through 5 Years, Yield	2.24%	'
Due after 5 Years through 10 Years, Yield	3.28%	'
Due after 10 Years, Yield	3.11%	'
Total, Yield	3.06%	'
Amortized cost	44	50
Debt instruments [Member] | Asset-backed securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Due in 1 Year or Less, Amount	0	'
Due after 1 Year through 5 Years, Amount	5	'
Due after 5 Years through 10 Years, Amount	4	'
Due after 10 Years, Amount	18	'
Total, fair value	27	13
Due in 1 Year or Less, Yield	0.00%	'
Due after 1 Year through 5 Years, Yield	0.75%	'
Due after 5 Years through 10 Years, Yield	1.88%	'
Due after 10 Years, Yield	2.66%	'
Total, Yield	2.08%	'
Amortized cost	27	13
Equity instruments [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	2,316	'
Total, Yield	4.38%	'
Equity instruments [Member] | Fixed income mutual funds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	1,835	'
Total, Yield	4.41%	'
Equity instruments [Member] | Equity mutual funds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, fair value	481	484
Total, Yield	4.27%	'
Amortized cost	$217	$259

Finance_Receivables_Net_Detail

Finance Receivables, Net (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
In Millions, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Gross finance receivables	$65,774	$63,172	'	'
Allowance for credit losses	-454	-527	-619	-879
Finance receivables, net	65,176	62,567	'	'
Finance Receivables, Net [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Gross finance receivables	65,774	63,172	'	'
Deferred origination costs	651	634	'	'
Deferred income	-863	-794	'	'
Allowance for credit losses	-386	-445	-524	'
Finance receivables, net	65,176	62,567	'	'
Finance Receivables, Net [Member] | Retail receivables [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Gross finance receivables	40,216	40,508	'	'
Finance Receivables, Net [Member] | Pledged retail receivables [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Gross finance receivables	9,633	7,669	'	'
Finance Receivables, Net [Member] | Dealer financing [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Gross finance receivables	15,925	14,995	'	'
Allowance for credit losses	-88	-107	'	'
Finance Receivables, Net [Member] | Retail and Pledged Retail Receivables [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Allowance for credit losses	-298	-338	'	'
Investments In Operating Leases, Net [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Allowance for credit losses	($68)	($82)	'	'

Finance_Receivables_Net_Contra

Finance Receivables, Net (Contractrual Maturities) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Receivables from direct finance leases	$274	$235
Estimated unguaranteed residual values related to direct finance leases	6	'
Dealer products portfolio segment accounts on nonaccrual status	54	69
Retail receivables [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
2015	14,336	'
2016	12,719	'
2017	10,397	'
2018	7,473	'
2019	3,768	'
Thereafter	1,150	'
Total	49,843	'
Dealer financing [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
2015	11,345	'
2016	1,546	'
2017	1,020	'
2018	731	'
2019	806	'
Thereafter	477	'
Total	$15,925	'

Finance_Receivables_Net_Credit

Finance Receivables, Net (Credit Quality Indicator) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Current	$65,180	$62,593
30-59 Days Past Due	469	460
60-89 Days Past Due	92	88
90 Days or Greater Past Due	33	31
Total Finance Receivables	65,774	63,172
Wholesale [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Current	9,436	8,689
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90 Days or Greater Past Due	0	0
Total Finance Receivables	9,436	8,689	[1]
Wholesale [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	8,129	7,740	[1]
Wholesale [Member] | Credit Watch [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	1,282	915	[1]
Wholesale [Member] | At Risk [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	24	33	[1]
Wholesale [Member] | Default [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	1	1	[1]
Real estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Current	4,653	4,580
30-59 Days Past Due	4	0
60-89 Days Past Due	1	0
90 Days or Greater Past Due	0	0
Total Finance Receivables	4,658	4,580
Real estate [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	3,791	3,968
Real estate [Member] | Credit Watch [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	855	583
Real estate [Member] | At Risk [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	12	28
Real estate [Member] | Default [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	0	1
Working capital [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Current	1,831	1,726
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90 Days or Greater Past Due	0	0
Total Finance Receivables	1,831	1,726
Working capital [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	1,642	1,616
Working capital [Member] | Credit Watch [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	158	80
Working capital [Member] | At Risk [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	25	28
Working capital [Member] | Default [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total Finance Receivables	6	2
Retail Loan [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Current	48,828	47,236
30-59 Days Past Due	459	454
60-89 Days Past Due	90	87
90 Days or Greater Past Due	33	31
Total Finance Receivables	49,410	47,808
Commercial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Current	432	362
30-59 Days Past Due	6	6
60-89 Days Past Due	1	1
90 Days or Greater Past Due	0	0
Total Finance Receivables	$439	$369
[1]	Certain prior period amounts have been reclassified to conform to the current period presentation.

Finance_Receivables_Net_Impair

Finance Receivables, Net (Impaired Finance Receivables) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Impaired Finance Receivables	'	'
Impaired Finance Receivables Individually Evaluated with Related Allowance	$63	$73
Impaired Finance Receivables Individually Evaluated with No Related Allowance	145	168
Impaired Finance Receivables Aggregated And Evaluated For Impairment	323	416
Impaired Finance Receivables	531	657
Unpaid Principal Balance	'	'
Unpaid Principal Balance Individually Evaluated with Related Allowance	63	73
Unpaid Principal Balance Individually Evaluated with No Related Allowance	145	168
Unpaid Principal Balance Aggregated And Evaluated For Impairment	319	411
Unpaid Principal Balance	527	652
Individually Evaluated Allowance	31	33
Average Impaired Finance Receivables	'	'
Average Impaired Finance Receivables Individually Evaluated For Impairment with An Allowance	72	121
Average Impaired Finance Receivables Individually Evaluated For Impairment Without An Allowance	156	124
Average Impaired Finance Receivables Account Balances Aggregated And Evaluated For Impairment	369	463
Average Impaired Finance Receivables	597	708
Interest Income Recognized	'	'
Interest Income Recognized Individually Evaluated with Related Allowance	3	2
Interest Income Recognized Individually Evaluated with No Related Allowance	5	6
Interest Income Recognized Aggregated And Evaluated For Impairment	27	37
Interest Income Recognized	35	45
Wholesale [Member]	'	'
Impaired Finance Receivables	'	'
Impaired Finance Receivables Individually Evaluated with Related Allowance	13	16
Impaired Finance Receivables Individually Evaluated with No Related Allowance	51	66
Impaired Finance Receivables	64	82
Unpaid Principal Balance	'	'
Unpaid Principal Balance Individually Evaluated with Related Allowance	13	16
Unpaid Principal Balance Individually Evaluated with No Related Allowance	51	66
Unpaid Principal Balance	64	82
Individually Evaluated Allowance	1	3
Average Impaired Finance Receivables	'	'
Average Impaired Finance Receivables Individually Evaluated For Impairment with An Allowance	16	22
Average Impaired Finance Receivables Individually Evaluated For Impairment Without An Allowance	59	63
Average Impaired Finance Receivables	75	85
Interest Income Recognized	'	'
Interest Income Recognized Individually Evaluated with Related Allowance	0	0
Interest Income Recognized Individually Evaluated with No Related Allowance	1	2
Interest Income Recognized	1	2
Real estate [Member]	'	'
Impaired Finance Receivables	'	'
Impaired Finance Receivables Individually Evaluated with Related Allowance	27	33
Impaired Finance Receivables Individually Evaluated with No Related Allowance	90	97
Impaired Finance Receivables	117	130
Unpaid Principal Balance	'	'
Unpaid Principal Balance Individually Evaluated with Related Allowance	27	33
Unpaid Principal Balance Individually Evaluated with No Related Allowance	90	97
Unpaid Principal Balance	117	130
Individually Evaluated Allowance	8	7
Average Impaired Finance Receivables	'	'
Average Impaired Finance Receivables Individually Evaluated For Impairment with An Allowance	32	75
Average Impaired Finance Receivables Individually Evaluated For Impairment Without An Allowance	93	59
Average Impaired Finance Receivables	125	134
Interest Income Recognized	'	'
Interest Income Recognized Individually Evaluated with Related Allowance	1	1
Interest Income Recognized Individually Evaluated with No Related Allowance	4	4
Interest Income Recognized	5	5
Working capital [Member]	'	'
Impaired Finance Receivables	'	'
Impaired Finance Receivables Individually Evaluated with Related Allowance	23	24
Impaired Finance Receivables Individually Evaluated with No Related Allowance	4	5
Impaired Finance Receivables	27	29
Unpaid Principal Balance	'	'
Unpaid Principal Balance Individually Evaluated with Related Allowance	23	24
Unpaid Principal Balance Individually Evaluated with No Related Allowance	4	5
Unpaid Principal Balance	27	29
Individually Evaluated Allowance	22	23
Average Impaired Finance Receivables	'	'
Average Impaired Finance Receivables Individually Evaluated For Impairment with An Allowance	24	24
Average Impaired Finance Receivables Individually Evaluated For Impairment Without An Allowance	4	2
Average Impaired Finance Receivables	28	26
Interest Income Recognized	'	'
Interest Income Recognized Individually Evaluated with Related Allowance	2	1
Interest Income Recognized Individually Evaluated with No Related Allowance	0	0
Interest Income Recognized	2	1
Retail Loan [Member]	'	'
Impaired Finance Receivables	'	'
Impaired Finance Receivables Aggregated And Evaluated For Impairment	322	415
Impaired Finance Receivables	322	415
Unpaid Principal Balance	'	'
Unpaid Principal Balance Aggregated And Evaluated For Impairment	318	410
Unpaid Principal Balance	318	410
Average Impaired Finance Receivables	'	'
Average Impaired Finance Receivables Account Balances Aggregated And Evaluated For Impairment	368	462
Average Impaired Finance Receivables	368	462
Interest Income Recognized	'	'
Interest Income Recognized Aggregated And Evaluated For Impairment	27	37
Interest Income Recognized	27	37
Commercial [Member]	'	'
Impaired Finance Receivables	'	'
Impaired Finance Receivables Aggregated And Evaluated For Impairment	1	1
Impaired Finance Receivables	1	1
Unpaid Principal Balance	'	'
Unpaid Principal Balance Aggregated And Evaluated For Impairment	1	1
Unpaid Principal Balance	1	1
Average Impaired Finance Receivables	'	'
Average Impaired Finance Receivables Account Balances Aggregated And Evaluated For Impairment	1	1
Average Impaired Finance Receivables	1	1
Interest Income Recognized	'	'
Interest Income Recognized Aggregated And Evaluated For Impairment	0	0
Interest Income Recognized	$0	$0

Investments_in_Operating_Lease2

Investments in Operating Leases, Net (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
In Millions, unless otherwise specified
Property Subject to or Available for Operating Lease [Line Items]	'	'	'	'
Allowance for credit losses	($454)	($527)	($619)	($879)
Future minimum rentals on operating leases	'	'	'	'
2015	4,220	'	'	'
2016	2,912	'	'	'
2017	1,093	'	'	'
2018	193	'	'	'
2019	29	'	'	'
Thereafter	1	'	'	'
Total	8,448	'	'	'
Finance Receivables, Net [Member]	'	'	'	'
Property Subject to or Available for Operating Lease [Line Items]	'	'	'	'
Allowance for credit losses	-386	-445	-524	'
Investments In Operating Leases, Net [Member]	'	'	'	'
Property Subject to or Available for Operating Lease [Line Items]	'	'	'	'
Investments in operating leases	31,271	26,587	'	'
Deferred origination fees	-146	-125	'	'
Deferred income	-826	-609	'	'
Accumulated depreciation	-5,462	-5,387	'	'
Allowance for credit losses	-68	-82	'	'
Investments in operating leases, net	24,769	20,384	'	'
Investments In Operating Leases, Net [Member] | Pledged Property Subject To Or Available For Operating Lease Gross [Member]	'	'	'	'
Property Subject to or Available for Operating Lease [Line Items]	'	'	'	'
Investments in operating leases	248	630	'	'
Investments In Operating Leases, Net [Member] | Investments in operating leases [Member]	'	'	'	'
Property Subject to or Available for Operating Lease [Line Items]	'	'	'	'
Investments in operating leases	$31,023	$25,957	'	'

Allowance_for_Credit_Losses_De

Allowance for Credit Losses (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Allowance for Credit Losses on Finance Receivables and Investments in Operating Leases	'	'	'	'	'	'	'	'	'	'	'
Allowance for credit losses at	'	'	'	$527	'	'	'	$619	$527	$619	$879
Provision for credit losses	68	63	28	11	14	88	3	16	170	121	-98
Charge-offs, net of recoveries	'	'	'	'	'	'	'	'	-243	-213	-162
Allowance for credit losses at	454	'	'	'	527	'	'	'	454	527	619
Recoveries from credit loss charge-offs	'	'	'	'	'	'	'	'	$85	$87	$123

Allowance_for_Credit_Losses_an

Allowance for Credit Losses and Recorded Investment in Finance Receivables by Portfolio Segment (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Allowance for Credit Losses for Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Allowance for credit losses at	'	'	'	$527	'	'	'	$619	$527	$619	$879
Provision for credit losses	68	63	28	11	14	88	3	16	170	121	-98
Allowance for credit losses at	454	'	'	'	527	'	'	'	454	527	619
Gross Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Ending Balance at	65,774	'	'	'	63,172	'	'	'	65,774	63,172	'
Finance Receivables, Net [Member]	'	'	'	'	'	'	'	'	'	'	'
Allowance for Credit Losses for Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Allowance for credit losses at	'	'	'	445	'	'	'	524	445	524	'
Charge-offs	'	'	'	'	'	'	'	'	-265	-249	'
Recoveries	'	'	'	'	'	'	'	'	65	71	'
Provision for credit losses	'	'	'	'	'	'	'	'	141	99	'
Allowance for credit losses at	386	'	'	'	445	'	'	'	386	445	'
Ending Balance: Individually Evaluated for Impairment	31	'	'	'	33	'	'	'	31	33	'
Ending Balance: Collectively Evaluated for Impairment	355	'	'	'	412	'	'	'	355	412	'
Gross Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Ending Balance at	65,774	'	'	'	63,172	'	'	'	65,774	63,172	'
Ending Balance: Individually Evaluated for Impairment	208	'	'	'	241	'	'	'	208	241	'
Ending Balance: Collectively Evaluated for Impairment	65,566	'	'	'	62,931	'	'	'	65,566	62,931	'
Finance Receivables, Net [Member] | Retail Loan [Member]	'	'	'	'	'	'	'	'	'	'	'
Allowance for Credit Losses for Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Allowance for credit losses at	'	'	'	333	'	'	'	395	333	395	'
Charge-offs	'	'	'	'	'	'	'	'	-263	-248	'
Recoveries	'	'	'	'	'	'	'	'	64	70	'
Provision for credit losses	'	'	'	'	'	'	'	'	162	116	'
Allowance for credit losses at	296	'	'	'	333	'	'	'	296	333	'
Ending Balance: Individually Evaluated for Impairment	0	'	'	'	0	'	'	'	0	0	'
Ending Balance: Collectively Evaluated for Impairment	296	'	'	'	333	'	'	'	296	333	'
Gross Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Ending Balance at	49,410	'	'	'	47,808	'	'	'	49,410	47,808	'
Ending Balance: Individually Evaluated for Impairment	0	'	'	'	0	'	'	'	0	0	'
Ending Balance: Collectively Evaluated for Impairment	49,410	'	'	'	47,808	'	'	'	49,410	47,808	'
Gross Finance Receivables	322	'	'	'	415	'	'	'	322	415	'
Finance Receivables, Net [Member] | Commercial [Member]	'	'	'	'	'	'	'	'	'	'	'
Allowance for Credit Losses for Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Allowance for credit losses at	'	'	'	5	'	'	'	10	5	10	'
Charge-offs	'	'	'	'	'	'	'	'	-2	-1	'
Recoveries	'	'	'	'	'	'	'	'	1	1	'
Provision for credit losses	'	'	'	'	'	'	'	'	-2	-5	'
Allowance for credit losses at	2	'	'	'	5	'	'	'	2	5	'
Ending Balance: Individually Evaluated for Impairment	0	'	'	'	0	'	'	'	0	0	'
Ending Balance: Collectively Evaluated for Impairment	2	'	'	'	5	'	'	'	2	5	'
Gross Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Ending Balance at	439	'	'	'	369	'	'	'	439	369	'
Ending Balance: Individually Evaluated for Impairment	0	'	'	'	0	'	'	'	0	0	'
Ending Balance: Collectively Evaluated for Impairment	439	'	'	'	369	'	'	'	439	369	'
Gross Finance Receivables	1	'	'	'	1	'	'	'	1	1	'
Finance Receivables, Net [Member] | Dealer Products [Member]	'	'	'	'	'	'	'	'	'	'	'
Allowance for Credit Losses for Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Allowance for credit losses at	'	'	'	107	'	'	'	119	107	119	'
Charge-offs	'	'	'	'	'	'	'	'	0	0	'
Recoveries	'	'	'	'	'	'	'	'	0	0	'
Provision for credit losses	'	'	'	'	'	'	'	'	-19	-12	'
Allowance for credit losses at	88	'	'	'	107	'	'	'	88	107	'
Ending Balance: Individually Evaluated for Impairment	31	'	'	'	33	'	'	'	31	33	'
Ending Balance: Collectively Evaluated for Impairment	57	'	'	'	74	'	'	'	57	74	'
Gross Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Ending Balance at	15,925	'	'	'	14,995	'	'	'	15,925	14,995	'
Ending Balance: Individually Evaluated for Impairment	208	'	'	'	241	'	'	'	208	241	'
Ending Balance: Collectively Evaluated for Impairment	15,717	'	'	'	14,754	'	'	'	15,717	14,754	'
Finance Receivables, Net [Member] | Dealer Products [Member] | TMS [Member] | Financial Guarantee [Member]	'	'	'	'	'	'	'	'	'	'	'
Gross Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Ending Balance: Collectively Evaluated for Impairment	836	'	'	'	812	'	'	'	836	812	'
Finance Receivables, Net [Member] | Dealer Products [Member] | Private Toyota Distributors [Member] | Financial Guarantee [Member]	'	'	'	'	'	'	'	'	'	'	'
Gross Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Ending Balance: Collectively Evaluated for Impairment	144	'	'	'	145	'	'	'	144	145	'
Investments In Operating Leases, Net [Member]	'	'	'	'	'	'	'	'	'	'	'
Allowance for Credit Losses for Finance Receivables:	'	'	'	'	'	'	'	'	'	'	'
Allowance for credit losses at	$68	'	'	'	$82	'	'	'	$68	$82	'

Allowance_for_Credit_Losses_Pa

Allowance for Credit Losses (Past Dues) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Past Due Finance Receivables and Investments in Operating Leases	'	'
Finance receivables	$125	$119
Operating leases	36	36
Total	161	155
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	469	460
60-89 Days Past Due	92	88
90 Days or Greater Past Due	33	31
Total Past Due	594	579
Current	65,180	62,593
Total Finance Receivables	65,774	63,172
90 Days or Greater Past Due and Accruing	33	31
Retail Loan [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	459	454
60-89 Days Past Due	90	87
90 Days or Greater Past Due	33	31
Total Past Due	582	572
Current	48,828	47,236
Total Finance Receivables	49,410	47,808
90 Days or Greater Past Due and Accruing	33	31
Commercial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	6	6
60-89 Days Past Due	1	1
90 Days or Greater Past Due	0	0
Total Past Due	7	7
Current	432	362
Total Finance Receivables	439	369
90 Days or Greater Past Due and Accruing	0	0
Wholesale [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90 Days or Greater Past Due	0	0
Total Past Due	0	0
Current	9,436	8,689
Total Finance Receivables	9,436	8,689	[1]
90 Days or Greater Past Due and Accruing	0	0
Real estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	4	0
60-89 Days Past Due	1	0
90 Days or Greater Past Due	0	0
Total Past Due	5	0
Current	4,653	4,580
Total Finance Receivables	4,658	4,580
90 Days or Greater Past Due and Accruing	0	0
Working capital [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90 Days or Greater Past Due	0	0
Total Past Due	0	0
Current	1,831	1,726
Total Finance Receivables	1,831	1,726
90 Days or Greater Past Due and Accruing	$0	$0
[1]	Certain prior period amounts have been reclassified to conform to the current period presentation.

Derivatives_Hedging_Activities2

Derivatives, Hedging Activities and Interest Expense (Effect of Derivative Instruments on Balance Sheet) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Other assets:	'	'
Carrying value of derivative contracts - Other assets	$49	$58
Collateral held	718	953
Collateral posted in excess of the fair value of derivative liabilities	3	6
Other liabilities:	'	'
Carrying value of derivative contracts - Other liabilities	6	17
Collateral posted	331	184
Collateral held in excess of the fair value of derivative assets	5	3
Other assets [Member]	'	'
Other assets:	'	'
Notional	34,633	31,545
Fair value	1,235	1,719
Counterparty netting and collateral	-1,186	-1,661
Carrying value of derivative contracts - Other assets	49	58
Other assets [Member] | Interest rate swap [Member]	'	'
Other assets:	'	'
Notional	26,407	22,801
Fair value	361	580
Other assets [Member] | Foreign currency swaps [Member]	'	'
Other assets:	'	'
Notional	8,226	8,744
Fair value	874	1,139
Other liabilities [Member]	'	'
Other liabilities:	'	'
Notional	61,718	55,349
Fair value	805	909
Counterparty netting and collateral	-799	-892
Carrying value of derivative contracts - Other liabilities	6	17
Other liabilities [Member] | Interest rate swap [Member]	'	'
Other liabilities:	'	'
Notional	57,689	51,342
Fair value	553	766
Other liabilities [Member] | Interest rate cap [Member]	'	'
Other liabilities:	'	'
Notional	50	50
Fair value	0	0
Other liabilities [Member] | Foreign currency swaps [Member]	'	'
Other liabilities:	'	'
Notional	3,979	3,893
Fair value	252	131
Other liabilities [Member] | Embedded derivatives	'	'
Other liabilities:	'	'
Notional	'	64
Fair value	'	12
Hedge accounting derivatives [Member] | Other assets [Member]	'	'
Other assets:	'	'
Notional	1,317	1,711
Fair value	367	535
Hedge accounting derivatives [Member] | Other assets [Member] | Interest rate swap [Member]	'	'
Other assets:	'	'
Notional	465	465
Fair value	25	44
Hedge accounting derivatives [Member] | Other assets [Member] | Foreign currency swaps [Member]	'	'
Other assets:	'	'
Notional	852	1,246
Fair value	342	491
Hedge accounting derivatives [Member] | Other liabilities [Member]	'	'
Other liabilities:	'	'
Notional	157	790
Fair value	14	29
Hedge accounting derivatives [Member] | Other liabilities [Member] | Interest rate swap [Member]	'	'
Other liabilities:	'	'
Notional	0	0
Fair value	0	0
Hedge accounting derivatives [Member] | Other liabilities [Member] | Interest rate cap [Member]	'	'
Other liabilities:	'	'
Notional	0	0
Fair value	0	0
Hedge accounting derivatives [Member] | Other liabilities [Member] | Foreign currency swaps [Member]	'	'
Other liabilities:	'	'
Notional	157	790
Fair value	14	29
Hedge accounting derivatives [Member] | Other liabilities [Member] | Embedded derivatives	'	'
Other liabilities:	'	'
Notional	'	0
Fair value	'	0
Non-hedge accounting derivatives [Member] | Other assets [Member]	'	'
Other assets:	'	'
Notional	33,316	29,834
Fair value	868	1,184
Non-hedge accounting derivatives [Member] | Other assets [Member] | Interest rate swap [Member]	'	'
Other assets:	'	'
Notional	25,942	22,336
Fair value	336	536
Non-hedge accounting derivatives [Member] | Other assets [Member] | Foreign currency swaps [Member]	'	'
Other assets:	'	'
Notional	7,374	7,498
Fair value	532	648
Non-hedge accounting derivatives [Member] | Other liabilities [Member]	'	'
Other liabilities:	'	'
Notional	61,561	54,559
Fair value	791	880
Non-hedge accounting derivatives [Member] | Other liabilities [Member] | Interest rate swap [Member]	'	'
Other liabilities:	'	'
Notional	57,689	51,342
Fair value	553	766
Non-hedge accounting derivatives [Member] | Other liabilities [Member] | Interest rate cap [Member]	'	'
Other liabilities:	'	'
Notional	50	50
Fair value	0	0
Non-hedge accounting derivatives [Member] | Other liabilities [Member] | Foreign currency swaps [Member]	'	'
Other liabilities:	'	'
Notional	3,822	3,103
Fair value	238	102
Non-hedge accounting derivatives [Member] | Other liabilities [Member] | Embedded derivatives	'	'
Other liabilities:	'	'
Notional	'	64
Fair value	'	$12

Derivatives_Hedging_Activities3

Derivatives, Hedging Activities and Interest Expense (Effect of Derivative Instruments on Income Statement) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Derivatives, Hedging Activities and Interest Expense [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Interest expense on debt	'	'	'	'	'	'	'	'	$1,262	$1,330	$1,677
Interest expense on hedge accounting derivatives	'	'	'	'	'	'	'	'	-85	-103	-221
Interest expense on non-hedge accounting foreign currency swaps	'	'	'	'	'	'	'	'	-202	-258	-386
Interest expense on non-hedge accounting interest rate swaps	'	'	'	'	'	'	'	'	210	359	606
Interest expense on debt and derivatives	'	'	'	'	'	'	'	'	1,185	1,328	1,676
Derivative Instruments, Loss (Gain) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Total interest expense	104	386	314	536	315	284	283	58	1,340	940	1,300
Relative fair value allocation of derivative credit valuation adjustments within interest expense	'	'	'	'	'	'	'	'	'	'	'
Gains related to hedge accounting derivatives	'	'	'	'	'	'	'	'	0	-2	-3
Gains on non-hedge accounting foreign currency swaps	'	'	'	'	'	'	'	'	0	0	-6
Total credit valuation adjustment allocated to interest expense	'	'	'	'	'	'	'	'	0	-2	-9
Interest expense [Member]	'	'	'	'	'	'	'	'	'	'	'
Derivative Instruments, Loss (Gain) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Loss (gain) on hedge accounting derivatives	'	'	'	'	'	'	'	'	28	289	17
Less hedged item: change in fair value of fixed rate debt	'	'	'	'	'	'	'	'	-31	-299	-38
Ineffectiveness related to hedge accounting derivatives	'	'	'	'	'	'	'	'	-3	-10	-21
(Gain) on foreign currency transactions	'	'	'	'	'	'	'	'	-45	-430	-182
Total interest expense	'	'	'	'	'	'	'	'	1,340	940	1,300
Interest expense [Member] | Interest rate swap [Member]	'	'	'	'	'	'	'	'	'	'	'
Derivative Instruments, Loss (Gain) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Loss (gain) on hedge accounting derivatives	'	'	'	'	'	'	'	'	20	15	-6
Loss (gain) on interest rate swaps	'	'	'	'	'	'	'	'	18	-379	-89
Interest expense [Member] | Foreign currency swaps [Member]	'	'	'	'	'	'	'	'	'	'	'
Derivative Instruments, Loss (Gain) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Loss (gain) on hedge accounting derivatives	'	'	'	'	'	'	'	'	8	274	23
Loss (gain) on foreign currency swaps	'	'	'	'	'	'	'	'	$185	$431	($84)

Derivatives_Hedging_Activities4

Derivatives, Hedging Activities and Interest Expense (Narratives) (Details) (USD $)	Mar. 31, 2014
In Millions, unless otherwise specified
Derivative, Credit Risk Related Contingent Features [Line Items]	'
Aggregate fair value of derivative instruments in a net liability position	$6
Collateral required to be posted to the counterparties, net liability position	$6

Other_Assets_and_Other_Liabili2

Other Assets and Other Liabilities (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
In Millions, unless otherwise specified
Other assets:	'	'	'
Notes receivable from alliliates	$1,172	$931	'
Used vehicle held for sale	139	265	'
Deferred charges	116	120	'
Income taxes receivable	0	13	'
Derivative assets	49	58	'
Other assets	394	353	'
Total other assets	1,870	1,740	'
Other liabilities:	'	'	'
Unearned insurance premiums and contract revenues	1,665	1,528	'
Derivative liabilities	6	17	'
Accounts payable and accrued expenses	746	685	'
Deferred income	332	255	'
Other liabilities	139	192	'
Total other liabilities	2,888	2,677	'
Non cash activities for used vehicles held for sale	$147	$183	$80

Debt_Details

Debt (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Debt Instrument [Line Items]	'	'
Debt	$85,367,000,000	$78,832,000,000
Weighted average contractual interest rate	1.26%	1.43%
Increase (decrease) in carrying value adjustment on debt	-101,000,000	'
Debt maturity dates	'As of March 31, 2014, our notes and loans payable mature on various dates through fiscal 2047.	'
Commercial paper [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt	27,709,000,000	24,590,000,000
Weighted average contractual interest rate	0.18%	0.24%
Commercial paper average remaining maturity	'As of March 31, 2014, our commercial paper had a weighted average remaining maturity of 87 days.	'
Unsecured notes and loans payable [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt	49,075,000,000	46,707,000,000
Weighted average contractual interest rate	1.99%	2.19%
Debt denominated in foreign currency	12,600,000,000	13,200,000,000
Unsecured notes and loans payable [Member] | Floating rate [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt	17,600,000,000	16,800,000,000
Contractual interest rate, minimum	0.00%	0.00%
Contractual interest rate, maximum	3.30%	6.00%
Unsecured notes and loans payable [Member] | Fixed rate [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt	31,900,000,000	30,400,000,000
Contractual interest rate, minimum	0.50%	0.50%
Contractual interest rate, maximum	9.40%	9.40%
Secured notes and loans payable [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt	8,158,000,000	7,009,000,000
Weighted average contractual interest rate	0.54%	0.60%
Secured notes and loans payable [Member] | Floating rate [Member]	'	'
Debt Instrument [Line Items]	'	'
Contractual interest rate, minimum	0.40%	0.40%
Contractual interest rate, maximum	1.60%	1.90%
Secured notes and loans payable [Member] | Fixed rate [Member]	'	'
Debt Instrument [Line Items]	'	'
Contractual interest rate, minimum	0.40%	0.40%
Contractual interest rate, maximum	1.60%	1.90%
Carrying value adjustment [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt	$425,000,000	$526,000,000

Debt_Maturities_Details

Debt (Maturities) (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Other debt due in the fiscal years ending:	'	'	'
2015	$44,944,000,000	'	'
2016	13,718,000,000	'	'
2017	7,887,000,000	'	'
2018	8,117,000,000	'	'
2019	3,506,000,000	'	'
Thereafter	7,195,000,000	'	'
Total debt	85,367,000,000	78,832,000,000	'
Interest payments	$1,100,000,000	$1,300,000,000	$1,600,000,000

Variable_Interest_Entities_Det

Variable Interest Entities (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Variable Interest Entity [Line Items]	'	'
Securities retained by TMCC	$1,169	$466
Variable Interest Entities Securitized Assets [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Restricted Cash	644	491
Gross Securitized Assets	9,881	8,299
Net Securitized Assets	9,657	7,990
Other assets	7	12
Variable Interest Entities Securitized Assets [Member] | Retail Finance Receivables [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Restricted Cash	624	458
Gross Securitized Assets	9,633	7,669
Net Securitized Assets	9,501	7,556
Other assets	3	3
Variable Interest Entities Securitized Assets [Member] | Investments In Operating Leases, Net [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Restricted Cash	20	33
Gross Securitized Assets	248	630
Net Securitized Assets	156	434
Other assets	4	9
Related Liabilities [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Debt	8,158	7,009
Other Liabilities	2	1
Related Liabilities [Member] | Retail Finance Receivables [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Debt	8,146	6,738
Other Liabilities	2	1
Related Liabilities [Member] | Investments In Operating Leases, Net [Member]	'	'
Variable Interest Entity [Line Items]	'	'
Debt	12	271
Other Liabilities	$0	$0

Liquidity_Facilities_and_Lette1

Liquidity Facilities and Letters of Credit (Details) (USD $)

Mar. 31, 2013

Nov. 30, 2013

Mar. 31, 2014

Mar. 31, 2013

Nov. 30, 2013

Mar. 31, 2014

Mar. 31, 2013

Nov. 30, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

In Millions, unless otherwise specified

364 Day Credit Agreement Expiring 2014 [Member]

364 Day Credit Agreement Expiring 2015 [Member]

364 Day Credit Agreement Expiring 2015 [Member]

Three Year Agreement Expiring 2016 [Member]

Three Year Agreement Expiring 2017 [Member]

Three Year Agreement Expiring 2017 [Member]

Five Year Agreement Expiring 2018 [Member]

Five Year Agreement Expiring 2019 [Member]

Five Year Agreement Expiring 2019 [Member]

Total Commited Bank Credit Facilities [Member]

Committed Bank Credit Facility Expiring 2015 [Member]

Committed Bank Credit Facility Expiring 2015 [Member]

Committed Bank Credit Facility Expiring 2016 [Member]

Committed Bank Credit Facility Expiring 2016 [Member]

Committed Bank Credit Facility Expiring 2017 [Member]

Committed Bank Credit Facility Expiring 2017 [Member]

Line of Credit Facility [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Initiation Date

'

30-Nov-13

'

'

30-Nov-13

'

'

30-Nov-13

'

'

'

'

'

'

'

'

Maximum Borrowing Capacity

$3,800

$4,300

$4,300

$3,800

$4,300

$4,300

$3,800

$4,300

$4,300

$5,700

$3,300

'

$2,000

'

$400

'

Expiration Date

'

30-Nov-13

'

'

30-Nov-13

'

'

30-Nov-13

'

'

'

'

'

'

'

'

Credit facilities amount outstanding

$0

'

$0

$0

'

$0

$0

'

$0

'

$0

$0

$0

$0

$0

$0

Pension_and_Other_Benefits_Det

Pension and Other Benefits (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Employee benefits expense	$38	$30	$27
TMS [Member] | Defined Benefit Plan [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Vesting Period	'5 years	'	'
Total Number of Last Employment Months	120	'	'
Employee benefits expense	15	8	7
Highest average compensation consecutive number of months	60	'	'
Maximum employee credited service years	25	'	'
TMS [Member] | Defined Contribution Plan [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Vesting Period	'four years	'	'
Annual Maximum Contribution Percentage by Employee	30.00%	'	'
Employer Matching Contribution Percentage	66.67%	'	'
Maximum Annual Employer Contribution Percentage Per Employee	6.00%	'	'
Employer Matching Contribution, Annual Vesting Percentage	25.00%	'	'
Employer contributions to defined contribution plan	7	7	7
TMS [Member] | Other Post-employment Benefits [Member]	'	'	'
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]	'	'	'
Vesting Period	'10 years	'	'
Employee Minimum Age Eligibility For Post Employment Benefits	55	'	'
Employee benefits expense	$16	$15	$13

Income_Tax_Provision_Component

Income Tax Provision (Components of Income Tax Expense and Effective Income Tax Rate Reconciliation ) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Current	'	'	'	'	'	'	'	'	'	'	'
Federal	'	'	'	'	'	'	'	'	($24)	($15)	($33)
State	'	'	'	'	'	'	'	'	-3	41	7
Foreign	'	'	'	'	'	'	'	'	8	6	9
Total Current	'	'	'	'	'	'	'	'	-19	32	-17
Deferred	'	'	'	'	'	'	'	'	'	'	'
Federal	'	'	'	'	'	'	'	'	460	721	830
State	'	'	'	'	'	'	'	'	54	69	123
Foreign	'	'	'	'	'	'	'	'	2	2	1
Total Deferred	'	'	'	'	'	'	'	'	516	792	954
Provision for income taxes	$182	$113	$149	$53	$189	$156	$200	$279	$497	$824	$937
Reconciliation Between U.S. Federal Statutory Tax Rate and Effective Tax Rate	'	'	'	'	'	'	'	'	'	'	'
Provision for income taxes at U.S. federal statutory tax rate	'	'	'	'	'	'	'	'	35.00%	35.00%	35.00%
State and local taxes (net of federal tax benefit)	'	'	'	'	'	'	'	'	3.10%	3.20%	3.40%
Other	'	'	'	'	'	'	'	'	-1.40%	0.00%	0.30%
Effective tax rate	'	'	'	'	'	'	'	'	36.70%	38.20%	38.70%

Income_Tax_Provision_Deferred_

Income Tax Provision (Deferred Tax Assets and Liabilities) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2013
In Millions, unless otherwise specified
Deferred Tax Assets Liabilities, Net [Line Items]	'	'
Net deferred income tax liability	$6,747	$6,236
Tax Liabilities	'	'
Lease transactions	7,133	6,509
State Taxes	482	446
Mark-to-market of investments in marketable securities	138	210
Other	295	295
Deferred tax liabilities	8,048	7,460
Tax Assets	'	'
Provsion for credit and residual value losses	310	347
Deferred costs and fees	211	167
Net operating loss and tax credit carry forwards	742	679
Other	56	47
Deferred tax assets	1,319	1,240
Valuation Allowance	-18	-16
Net deferred tax asset	1,301	1,224
Net deferred income tax liability	6,747	6,236
Federal [Member]	'	'
Deferred Tax Assets Liabilities, Net [Line Items]	'	'
Net deferred income tax liability	6,217	5,763
Tax Assets	'	'
Net deferred income tax liability	6,217	5,763
State [Member]	'	'
Deferred Tax Assets Liabilities, Net [Line Items]	'	'
Net deferred income tax liability	529	475
Tax Assets	'	'
Net deferred income tax liability	529	475
Foreign [Member]	'	'
Deferred Tax Assets Liabilities, Net [Line Items]	'	'
Net deferred income tax liability	1	-2
Tax Assets	'	'
Net deferred income tax liability	$1	($2)

Income_Tax_Provision_Unrecogni

Income Tax Provision (Unrecognized Tax Benefits) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Change in Unrecognized Tax Benefits	'	'	'
Balance at beginning of the period	$7	$8	$6
Increases related to positions taken during the prior years	0	0	2
Increases related to positions taken during the current year	0	1	0
Decreases related to positions taken during the prior years	-1	0	0
Settlements	0	-2	0
Balance at end of period	$6	$7	$8

Income_Tax_Provision_Narrative

Income Tax Provision (Narratives) (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Operating Loss Carryforwards [Line Items]	'	'	'
Income Taxes Receivable	$0	$13,000,000	'
Deferred Tax Assets, Tax Credit Carryforwards, Federal and State	80,000,000	58,000,000	'
Valuation Allowance	18,000,000	16,000,000	'
Net Taxes paid	-30,000,000	21,000,000	-112,000,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	1,000,000	1,000,000	2,000,000
Interest on Income Taxes Accrued, Maximum	1,000,000	1,000,000	1,000,000
Income Tax Penalties Accrued	0	0	0
Unremitted earnings in foreign subsidiary	184,000,000	'	'
TMCC-affiliated companies [Member]	'	'	'
Operating Loss Carryforwards [Line Items]	'	'	'
Income Taxes Receivable	1,000,000	1,100,000	'
Federal [Member]	'	'	'
Operating Loss Carryforwards [Line Items]	'	'	'
Operating Loss Carryforwards	591,000,000	552,000,000	'
Federal [Member] | Expiration End Date [Member]	'	'	'
Operating Loss Carryforwards [Line Items]	'	'	'
Expiration Dates	31-Mar-34	'	'
Federal [Member] | Expiration Beginning Date [Member]	'	'	'
Operating Loss Carryforwards [Line Items]	'	'	'
Expiration Dates	31-Mar-29	'	'
State [Member]	'	'	'
Operating Loss Carryforwards [Line Items]	'	'	'
Operating Loss Carryforwards	56,000,000	55,000,000	'
Income Taxes Receivable	'	7,000,000	'
Income Tax Payable	$11,000,000	'	'
State [Member] | Expiration End Date [Member]	'	'	'
Operating Loss Carryforwards [Line Items]	'	'	'
Expiration Dates	31-Mar-34	31-Mar-32	'
State [Member] | Expiration Beginning Date [Member]	'	'	'
Operating Loss Carryforwards [Line Items]	'	'	'
Expiration Dates	31-Mar-15	31-Mar-14	'

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Commitment:	'	'	'
Credit facilities commitments with vehicle and industrial equipment dealers	$1,295,000,000	$1,106,000,000	'
Minimum lease commitments	62,000,000	74,000,000	'
Total commitments	1,357,000,000	1,180,000,000	'
Guarantor Obligations [Line Items]	'	'	'
Guarantees of affiliate pollution control and solid waste disposal bonds	100,000,000	100,000,000	'
Minimum lease commitments	62,000,000	74,000,000	'
Total commitments and guarantees	1,457,000,000	1,280,000,000	'
Future minimum lease payments under non-cancelable operating leases	'	'	'
2015	19,000,000	'	'
2016	18,000,000	'	'
2017	13,000,000	'	'
2018	8,000,000	'	'
2019	3,000,000	'	'
Thereafter	1,000,000	'	'
Total	62,000,000	74,000,000	'
TMS [Member]	'	'	'
Commitment:	'	'	'
Minimum lease commitments	30,000,000	37,000,000	'
Guarantor Obligations [Line Items]	'	'	'
Rental expense payments to affiliates	25,000,000	22,000,000	23,000,000
15-year lease agreement between TMCC and TMS	'15 years	'	'
Minimum lease commitments	30,000,000	37,000,000	'
Future minimum lease payments under non-cancelable operating leases	'	'	'
Total	30,000,000	37,000,000	'
Affiliate Pollution Control and Solid Waste Disposal Bonds [Member] | TMCC Affiliates [Member]	'	'	'
Guarantor Obligations [Line Items]	'	'	'
Guarantees of affiliate pollution control and solid waste disposal bonds	100,000,000	'	'
Guaranty Fee	78,000	'	'
Affiliate Pollution Control and Solid Waste Disposal Bonds [Member] | 2028 [Member] | TMCC Affiliates [Member]	'	'	'
Guarantor Obligations [Line Items]	'	'	'
Guarantees of affiliate pollution control and solid waste disposal bonds	20,000,000	'	'
Affiliate Pollution Control and Solid Waste Disposal Bonds [Member] | 2029 [Member] | TMCC Affiliates [Member]	'	'	'
Guarantor Obligations [Line Items]	'	'	'
Guarantees of affiliate pollution control and solid waste disposal bonds	50,000,000	'	'
Affiliate Pollution Control and Solid Waste Disposal Bonds [Member] | 2030 [Member] | TMCC Affiliates [Member]	'	'	'
Guarantor Obligations [Line Items]	'	'	'
Guarantees of affiliate pollution control and solid waste disposal bonds	10,000,000	'	'
Affiliate Pollution Control and Solid Waste Disposal Bonds [Member] | 2031 [Member] | TMCC Affiliates [Member]	'	'	'
Guarantor Obligations [Line Items]	'	'	'
Guarantees of affiliate pollution control and solid waste disposal bonds	10,000,000	'	'
Affiliate Pollution Control and Solid Waste Disposal Bonds [Member] | 2032 [Member] | TMCC Affiliates [Member]	'	'	'
Guarantor Obligations [Line Items]	'	'	'
Guarantees of affiliate pollution control and solid waste disposal bonds	$10,000,000	'	'

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Net financing revenues:	'	'	'
Manufacturer's subvention support and other revenues	$994	$940	$949
Credit support fees incurred	-82	-72	-33
Foreign exchange loss on loans payable to affiliates	0	-39	-4
Interest expense on loans payable to affiliates	-3	-6	-49
Insurance earned premiums and contract revenues:	'	'	'
Affiliate insurance premiums and contract revenues	131	161	216
Investments and other income, net:	'	'	'
Interest earned on notes receivable from affiliates	6	6	3
Expenses:	'	'	'
Shared services charges and other expenses	61	64	67
Employee benefits expense	38	30	27
Investment in marketable securities	'	'	'
Investments in affiliates' commercial paper	0	2	'
Finance receivables, net	'	'	'
Accounts receivable from affiliates	74	22	'
Direct finance receivables from affiliates	6	6	'
Notes receivable under home loan programs	15	18	'
Deferred retail origination costs paid to affiliates	1	0	'
Deferred retail subvention income from affiliates	-768	-699	'
Investments in operating leases, net	'	'	'
Leases to affiliates	7	7	'
Deferred lease subvention income from affiliates	-806	-604	'
Other assets	'	'	'
Notes receivable from alliliates	1,172	931	'
Other receivables from affiliates	2	1	'
Subvention support receivable from affiliates	159	88	'
Other liabilities	'	'	'
Unearned affiliates insurance premiums and contract revenues	244	235	'
Accounts payable to affiliates	216	192	'
Notes payable to affiliate	22	48	'
Shareholder's Equity:	'	'	'
Dividends paid	$665	$1,487	'

Related_Party_Transactions_Fin

Related Party Transactions (Financing Support) (Details)

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

USD ($)

USD ($)

BTB [Member]

BTB [Member]

TFA [Member]

TFA [Member]

TFSA [Member]

TFSA [Member]

TMFNL [Member]

TMFNL [Member]

TMFNL [Member]

TCCI [Member]

TCCI [Member]

TCCI [Member]

TFSB [Member]

TFSB [Member]

TFSMX [Member]

TFSMX [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

EUR (€)

USD ($)

USD ($)

CAD

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Financing available to TMCC

'

'

'

'

$1,000,000,000

'

$200,000,000

'

'

€ 1,000,000,000

'

'

1,500,000,000

'

'

'

'

'

Amounts oustanding provided by parent and affiliates

22,000,000

48,000,000

'

'

0

0

22,000,000

48,000,000

0

'

0

0

'

0

'

'

'

'

Amounts outstanding provided to affiliates

1,172,000,000

931,000,000

105,000,000

127,000,000

200,000,000

350,000,000

0

0

827,000,000

'

419,000,000

0

'

0

40,000,000

35,000,000

0

0

Financing made available by TMCC

'

'

$300,000,000

'

$1,000,000,000

'

$200,000,000

'

'

€ 1,000,000,000

'

'

2,500,000,000

'

$400,000,000

'

$500,000,000

'

Related_Party_Transactions_Nar

Related Party Transactions (Narratives) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Related Party Transaction [Line Items]	'	'	'
Credit Support Fees	$82	$72	$33
Notes Payable	22	48	'
Notes Receivable	1,172	931	'
Accounts Receivable	74	22	'
Accounts Payable	216	192	'
Subvention Revenues	994	940	949
Operating Leases to Affiliates	7	7	'
Employee benefits expense	38	30	27
Investments in affiliates' commercial paper	0	2	'
TFSC Credit Support Agreement [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Credit Support Fees	82	72	33
TMCC-TFSB Loan Agreement [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Maximum Lending Amount	150	'	'
TFSB Master Participation Agreement [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Annual Maximum Participation	60	'	'
Loan Purchased	52	55	'
TMIS Service Type One [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Risk Ceded to Reinsures	99.00%	'	'
TMCC Affiliates [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Stock-based Compensation Expense	$2	$2	'

Segment_Information_Details

Segment Information (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2012

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total financing revenues

$1,881

$1,876

$1,845

$1,795

$1,804

[1]

$1,821

[1]

$1,822

[1]

$1,797

$7,397

$7,244

$7,458

[1]

Insurance earned premiums and contract revenues

'

'

'

'

'

'

'

'

567

571

604

Investment and other income, net

'

'

'

'

'

'

'

'

135

173

113

Total gross revenues

'

'

'

'

'

'

'

'

8,099

7,988

8,175

Depreciation on operating leases

1,062

1,033

966

951

915

[1]

907

[1]

891

[1]

855

4,012

3,568

3,368

[1]

Interest expense

104

386

314

536

315

284

283

58

1,340

940

1,300

Provision for credit losses

68

63

28

11

14

88

3

16

170

121

-98

Operating and administrative expenses

'

'

'

'

'

'

'

'

965

911

857

Insurance losses and loss adjustment expenses

'

'

'

'

'

'

'

'

258

293

325

Provision for income taxes

182

113

149

53

189

156

200

279

497

824

937

Net income

329

193

244

91

245

283

326

477

857

1,331

1,486

Total assets

102,740

'

'

'

95,302

'

'

'

102,740

95,302

88,913

Intercompany Eliminations [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total financing revenues

'

'

'

'

'

'

'

'

26

25

16

[1]

Insurance earned premiums and contract revenues

'

'

'

'

'

'

'

'

-26

-25

-16

Investment and other income, net

'

'

'

'

'

'

'

'

0

0

-3

Total gross revenues

'

'

'

'

'

'

'

'

0

0

-3

Depreciation on operating leases

'

'

'

'

'

'

'

'

0

0

0

[1]

Interest expense

'

'

'

'

'

'

'

'

0

0

-3

Provision for credit losses

'

'

'

'

'

'

'

'

0

0

0

Operating and administrative expenses

'

'

'

'

'

'

'

'

0

0

0

Insurance losses and loss adjustment expenses

'

'

'

'

'

'

'

'

0

0

0

Provision for income taxes

'

'

'

'

'

'

'

'

0

0

0

Net income

'

'

'

'

'

'

'

'

0

0

0

Total assets

-725

'

'

'

-704

'

'

'

-725

-704

-369

Finance Operations [Member] | Operating Segments [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total financing revenues

'

'

'

'

'

'

'

'

7,371

7,219

7,442

[1]

Insurance earned premiums and contract revenues

'

'

'

'

'

'

'

'

0

0

0

Investment and other income, net

'

'

'

'

'

'

'

'

98

57

44

Total gross revenues

'

'

'

'

'

'

'

'

7,469

7,276

7,486

Depreciation on operating leases

'

'

'

'

'

'

'

'

4,012

3,568

3,368

[1]

Interest expense

'

'

'

'

'

'

'

'

1,340

940

1,303

Provision for credit losses

'

'

'

'

'

'

'

'

170

121

-98

Operating and administrative expenses

'

'

'

'

'

'

'

'

767

734

703

Insurance losses and loss adjustment expenses

'

'

'

'

'

'

'

'

0

0

0

Provision for income taxes

'

'

'

'

'

'

'

'

437

730

860

Net income

'

'

'

'

'

'

'

'

743

1,183

1,350

Total assets

99,737

'

'

'

92,504

'

'

'

99,737

92,504

86,049

Insurance Operations [Member] | Operating Segments [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total financing revenues

'

'

'

'

'

'

'

'

0

0

0

[1]

Insurance earned premiums and contract revenues

'

'

'

'

'

'

'

'

593

596

620

Investment and other income, net

'

'

'

'

'

'

'

'

37

116

72

Total gross revenues

'

'

'

'

'

'

'

'

630

712

692

Depreciation on operating leases

'

'

'

'

'

'

'

'

0

0

0

[1]

Interest expense

'

'

'

'

'

'

'

'

0

0

0

Provision for credit losses

'

'

'

'

'

'

'

'

0

0

0

Operating and administrative expenses

'

'

'

'

'

'

'

'

198

177

154

Insurance losses and loss adjustment expenses

'

'

'

'

'

'

'

'

258

293

325

Provision for income taxes

'

'

'

'

'

'

'

'

60

94

77

Net income

'

'

'

'

'

'

'

'

114

148

136

Total assets

$3,728

'

'

'

$3,502

'

'

'

$3,728

$3,502

$3,233

[1]

Certain prior period amounts have been reclassified to conform to the current period presentation.

Selected_Quarterly_Financial_D2

Selected Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended											12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Selected Quarterly Financial Data (Unaudited) [Abstract]	'	'	'	'	'		'		'		'	'	'	'
Total financing revenues	$1,881	$1,876	$1,845	$1,795	$1,804	[1]	$1,821	[1]	$1,822	[1]	$1,797	$7,397	$7,244	$7,458	[1]
Depreciation on operating leases	1,062	1,033	966	951	915	[1]	907	[1]	891	[1]	855	4,012	3,568	3,368	[1]
Interest expense	104	386	314	536	315		284		283		58	1,340	940	1,300
Net financing revenues	715	457	565	308	574		630		648		884	2,045	2,736	2,790
Other income	191	209	157	145	173		203		183		185	'	'	'
Provision for credit losses	68	63	28	11	14		88		3		16	170	121	-98
Expenses	327	297	301	298	299		306		302		297	'	'	'
Income before income taxes	511	306	393	144	434		439		526		756	1,354	2,155	2,423
Provision for income taxes	182	113	149	53	189		156		200		279	497	824	937
Net income	$329	$193	$244	$91	$245		$283		$326		$477	$857	$1,331	$1,486
[1]	Certain prior period amounts have been reclassified to conform to the current period presentation.