Document and Entity Information - shares	3 Months Ended
	Jun. 30, 2019	Jul. 31, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Amendment Flag	false
Entity Registrant Name	Toyota Motor Credit Corporation
Entity Central Index Key	0000834071
Current Fiscal Year End Date	--03-31
Trading Symbol	TM/28
Entity Filer Category	Non-accelerated Filer
Entity Common Stock Shares Outstanding		91,500
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	1-9961
Entity Tax Identification Number	953775816
Entity Address, Address Line One	6565 Headquarters Drive
Entity Address, City or Town	Plano
Entity Address, State or Province	Texas
Entity Address, Postal Zip Code	75024
City Area Code	469
Local Phone Number	486-9300