Document and Entity Information Document - shares	6 Months Ended
	Jun. 30, 2020	Aug. 05, 2020
Entity Information
Entity Registrant Name	CATERPILLAR FINANCIAL SERVICES CORPORATION
Entity Central Index Key	0000764764
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Interactive Data Current	Yes
Document Type	10-Q
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1
Entity Current Reporting Status	Yes