Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2020	Nov. 06, 2020
Document Information [Line Items]
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Entity Registrant Name	Foley Trasimene Acquisition II
Entity Current Reporting Status	Yes
Transition Report	false
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Entity Central Index Key	0001818355
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Trading Symbol	BFT
Title of 12(b) Security	Class A Common Stock, par value $0.0001 per share
Security Exchange Name	NYSE
Class A common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		146,703,345
Class B common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		36,675,836