Interim Financial Data	9 Months Ended
Dec. 31, 2016
Accounting Policies [Abstract]
Interim Financial Data	Note 1 – Interim Financial Data Basis of Presentation The information furnished in these unaudited interim consolidated financial statements for the three and nine months ended December 31, 2016 and 2015 has been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP”). In the opinion of management, the unaudited consolidated financial information reflects all adjustments, consisting of normal recurring adjustments, necessary for a fair statement of the results for the interim periods presented. The results of operations for the three and nine months ended December 31, 2016 do not necessarily indicate the results which may be expected for the full fiscal year ending March 31, 2017 (“fiscal 2017”). These financial statements should be read in conjunction with the Consolidated Financial Statements, significant accounting policies, and other Notes to Consolidated Financial Statements included in Toyota Motor Credit Corporation’s Annual Report on Form 10-K (“Form 10-K”) for the fiscal year ended March 31, 2016 (“fiscal 2016”), which was filed with the Securities and Exchange Commission on June 2, 2016. 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. Certain prior period amounts have been reclassified to conform to current period presentation. Related party transactions are disclosed in Note 14 – Related Party Transactions. On July 1, 2016, our parent company, Toyota Financial Services Americas Corporation, was renamed to Toyota Financial Services International Corporation. Note 1 – Interim Financial Data (Continued) New Accounting Guidance In May 2014, the Financial Accounting Standards Board ("FASB") issued new guidance on the recognition of revenue from contracts with customers. This comprehensive standard will supersede virtually all existing revenue recognition guidance. This standard applies to all contracts with customers except leases, insurance contracts, financial instruments, guarantees, and certain nonmonetary exchanges. In August 2015, the FASB issued a one-year deferral of the effective date, with early adoption as of the original effective date permitted. The FASB also subsequently issued guidance amending and clarifying various aspects of the new revenue recognition standard. We plan to adopt the new revenue guidance effective April 1, 2018 by recognizing the cumulative effect of implementing the new standard as an adjustment to the current period opening balance of shareholder’s equity. We do not expect the adoption of this standard to have a material impact on our operating lease, retail and dealer financing revenues as the majority of those revenues are outside the scope of the standard. However, certain products within our insurance operations fall within the scope of this guidance. We are currently evaluating the potential impact of this guidance on our consolidated financial statements and disclosures. In May 2015, the FASB issued new guidance that requires additional disclosures related to short-duration insurance contracts. This accounting guidance is effective for us for the annual period beginning April 1, 2016 and for interim periods within annual periods beginning April 1, 2017. The adoption of this guidance is limited to disclosure and will not have an impact on our consolidated financial statements. In January 2016, the FASB issued new guidance that addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments and will require entities to measure equity investments at fair value and recognize any changes in fair value in earnings. This accounting guidance will be effective for us on April 1, 2018. We are currently evaluating the potential impact of this guidance on our consolidated financial statements. In February 2016, the FASB issued new guidance that introduces a lessee model that brings most leases on the balance sheet and aligns many of the underlying principles of the new lessor model with those in the new revenue recognition standard. The new leasing standard represents a wholesale change to lease accounting for lessees. This accounting guidance will be effective for us on April 1, 2019. We are currently evaluating the potential impact of this guidance on our consolidated financial statements. In March 2016, the FASB issued new guidance which clarifies that a change in the counterparty to a designated derivative hedging instrument does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. This accounting guidance will be effective for us on April 1, 2017. The adoption of this guidance is not expected to have a material impact on our consolidated financial statements. In March 2016, the FASB issued new guidance which clarifies whether an embedded contingent put or call option is clearly and closely related to the debt host when bifurcating an embedded derivative. This accounting guidance will be effective for us on April 1, 2017. The adoption of this guidance is not expected to have a material impact on our consolidated financial statements. In June 2016, the FASB issued new guidance that introduces a new impairment model based on expected losses rather than incurred losses for certain types of financial instruments. It also modifies the impairment model for available-for-sale debt securities and provides for a simplified accounting model for purchased financial assets with credit deterioration since their origination. This accounting guidance will be effective for us on April 1, 2020. We are currently evaluating the potential impact of this guidance on our consolidated financial statements. In August 2016, the FASB issued new guidance that is intended to reduce diversity in practice in the classification of certain items in the statement of cash flows. This accounting guidance will be effective for us on April 1, 2018. We are currently evaluating the potential impact of this guidance on our consolidated financial statements. In October 2016, the FASB issued new guidance that further amends the analysis a reporting entity must perform to determine whether it should consolidate certain legal entities. The guidance specifically addresses interests held through related parties that are under common control. This accounting guidance will be effective for us on April 1, 2017. The adoption of this guidance is not expected to have a material impact on our consolidated financial statements. Note 1 – Interim Financial Data (Continued) In November 2016, the FASB issued new guidance that clarifies how restricted cash and cash equivalents should be classified and presented in the statement of cash flows and requires new disclosures related to restricted cash and cash equivalents. This guidance was intended to reduce diversity in practice in the classification of restricted cash and cash equivalents on the statement of cash flows. This accounting guidance will be effective for us on April 1, 2018 at which time we will no longer report the change in restricted cash and cash equivalents in the operating section in our Consolidated Statement of Cash Flows, and cash and cash equivalents at the beginning and end of the period will include restricted cash and cash equivalents. These changes will be applied using a retrospective transition method to each period presented. Recently Adopted Accounting Guidance In April 2016, we adopted new FASB accounting guidance that amends the analysis a reporting entity must perform to determine whether it should consolidate certain legal entities. The adoption of this guidance did not have a material impact on our consolidated financial statements. In April 2016, we adopted new FASB accounting guidance that requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of the related debt liability instead of being presented as an asset. As a result of adopting this guidance, we have reclassified our debt issuance costs from Other assets to Debt on our Consolidated Balance Sheet and conformed applicable footnote disclosures for all periods presented. These amounts are not material to our consolidated financial statements. In April 2016, we adopted new FASB accounting guidance to help entities evaluate the accounting for fees paid by a customer in a cloud computing arrangement. While similar guidance existed previously under US GAAP for cloud service providers, this update provides explicit guidance for a customer's accounting. The adoption of this guidance did not have a material impact on our consolidated financial statements. In April 2016, we adopted new FASB accounting guidance that removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. Note 2 – Fair Value Measurements has been updated, for all periods presented, to reflect the adoption of this guidance which did not have a material impact on our consolidated financial statements.

Note 1 – Interim Financial Data

Basis of Presentation

The information furnished in these unaudited interim consolidated financial statements for the three and nine months ended December 31, 2016 and 2015 has been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP”). In the opinion of management, the unaudited consolidated financial information reflects all adjustments, consisting of normal recurring adjustments, necessary for a fair statement of the results for the interim periods presented. The results of operations for the three and nine months ended December 31, 2016 do not necessarily indicate the results which may be expected for the full fiscal year ending March 31, 2017 (“fiscal 2017”).

These financial statements should be read in conjunction with the Consolidated Financial Statements, significant accounting policies, and other Notes to Consolidated Financial Statements included in Toyota Motor Credit Corporation’s Annual Report on Form 10-K (“Form 10-K”) for the fiscal year ended March 31, 2016 (“fiscal 2016”), which was filed with the Securities and Exchange Commission on June 2, 2016. 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.

Certain prior period amounts have been reclassified to conform to current period presentation. Related party transactions are disclosed in Note 14 – Related Party Transactions.

On July 1, 2016, our parent company, Toyota Financial Services Americas Corporation, was renamed to Toyota Financial Services International Corporation.

Note 1 – Interim Financial Data (Continued)

New Accounting Guidance

In May 2014, the Financial Accounting Standards Board ("FASB") issued new guidance on the recognition of revenue from contracts with customers. This comprehensive standard will supersede virtually all existing revenue recognition guidance. This standard applies to all contracts with customers except leases, insurance contracts, financial instruments, guarantees, and certain nonmonetary exchanges. In August 2015, the FASB issued a one-year deferral of the effective date, with early adoption as of the original effective date permitted. The FASB also subsequently issued guidance amending and clarifying various aspects of the new revenue recognition standard. We plan to adopt the new revenue guidance effective April 1, 2018 by recognizing the cumulative effect of implementing the new standard as an adjustment to the current period opening balance of shareholder’s equity. We do not expect the adoption of this standard to have a material impact on our operating lease, retail and dealer financing revenues as the majority of those revenues are outside the scope of the standard. However, certain products within our insurance operations fall within the scope of this guidance. We are currently evaluating the potential impact of this guidance on our consolidated financial statements and disclosures.

In May 2015, the FASB issued new guidance that requires additional disclosures related to short-duration insurance contracts. This accounting guidance is effective for us for the annual period beginning April 1, 2016 and for interim periods within annual periods beginning April 1, 2017. The adoption of this guidance is limited to disclosure and will not have an impact on our consolidated financial statements.

In January 2016, the FASB issued new guidance that addresses certain aspects of recognition, measurement, presentation, and disclosure of financial instruments and will require entities to measure equity investments at fair value and recognize any changes in fair value in earnings. This accounting guidance will be effective for us on April 1, 2018. We are currently evaluating the potential impact of this guidance on our consolidated financial statements.

In February 2016, the FASB issued new guidance that introduces a lessee model that brings most leases on the balance sheet and aligns many of the underlying principles of the new lessor model with those in the new revenue recognition standard. The new leasing standard represents a wholesale change to lease accounting for lessees. This accounting guidance will be effective for us on April 1, 2019. We are currently evaluating the potential impact of this guidance on our consolidated financial statements.

In March 2016, the FASB issued new guidance which clarifies that a change in the counterparty to a designated derivative hedging instrument does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. This accounting guidance will be effective for us on April 1, 2017. The adoption of this guidance is not expected to have a material impact on our consolidated financial statements.

In March 2016, the FASB issued new guidance which clarifies whether an embedded contingent put or call option is clearly and closely related to the debt host when bifurcating an embedded derivative. This accounting guidance will be effective for us on April 1, 2017. The adoption of this guidance is not expected to have a material impact on our consolidated financial statements.

In June 2016, the FASB issued new guidance that introduces a new impairment model based on expected losses rather than incurred losses for certain types of financial instruments. It also modifies the impairment model for available-for-sale debt securities and provides for a simplified accounting model for purchased financial assets with credit deterioration since their origination. This accounting guidance will be effective for us on April 1, 2020. We are currently evaluating the potential impact of this guidance on our consolidated financial statements.

In August 2016, the FASB issued new guidance that is intended to reduce diversity in practice in the classification of certain items in the statement of cash flows. This accounting guidance will be effective for us on April 1, 2018. We are currently evaluating the potential impact of this guidance on our consolidated financial statements.

In October 2016, the FASB issued new guidance that further amends the analysis a reporting entity must perform to determine whether it should consolidate certain legal entities. The guidance specifically addresses interests held through related parties that are under common control. This accounting guidance will be effective for us on April 1, 2017. The adoption of this guidance is not expected to have a material impact on our consolidated financial statements.

Note 1 – Interim Financial Data (Continued)

In November 2016, the FASB issued new guidance that clarifies how restricted cash and cash equivalents should be classified and presented in the statement of cash flows and requires new disclosures related to restricted cash and cash equivalents. This guidance was intended to reduce diversity in practice in the classification of restricted cash and cash equivalents on the statement of cash flows. This accounting guidance will be effective for us on April 1, 2018 at which time we will no longer report the change in restricted cash and cash equivalents in the operating section in our Consolidated Statement of Cash Flows, and cash and cash equivalents at the beginning and end of the period will include restricted cash and cash equivalents. These changes will be applied using a retrospective transition method to each period presented.

Recently Adopted Accounting Guidance

In April 2016, we adopted new FASB accounting guidance that amends the analysis a reporting entity must perform to determine whether it should consolidate certain legal entities. The adoption of this guidance did not have a material impact on our consolidated financial statements.

In April 2016, we adopted new FASB accounting guidance that requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of the related debt liability instead of being presented as an asset. As a result of adopting this guidance, we have reclassified our debt issuance costs from Other assets to Debt on our Consolidated Balance Sheet and conformed applicable footnote disclosures for all periods presented. These amounts are not material to our consolidated financial statements.

In April 2016, we adopted new FASB accounting guidance to help entities evaluate the accounting for fees paid by a customer in a cloud computing arrangement. While similar guidance existed previously under US GAAP for cloud service providers, this update provides explicit guidance for a customer's accounting. The adoption of this guidance did not have a material impact on our consolidated financial statements.

In April 2016, we adopted new FASB accounting guidance that removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. Note 2 – Fair Value Measurements has been updated, for all periods presented, to reflect the adoption of this guidance which did not have a material impact on our consolidated financial statements.