v3.25.2
Document and Entity Information
Jul. 29, 2025
Document And Entity Information [Line Items]  
Amendment Flag false
Entity Central Index Key 0001601712
Document Type 8-K
Document Period End Date Jul. 29, 2025
Entity Registrant Name SYNCHRONY FINANCIAL
Entity Incorporation State Country Code DE
Entity File Number 001-36560
Entity Tax Identification Number 51-0483352
Entity Address, Address Line One 777 Long Ridge Road
Entity Address, City or Town Stamford
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06902
City Area Code (203)
Local Phone Number 585-2400
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common stock, par value $0.001 per share
Trading Symbol SYF
Security Exchange Name NYSE
Series A Preferred Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Depositary Shares Each Representing a 1/40th Interest in a Share of 5.625% Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series A
Trading Symbol SYFPrA
Security Exchange Name NYSE
Series B Preferred Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Depositary Shares Each Representing a 1/40th Interest in a Share of 8.250% Fixed Rate Reset Non-Cumulative Perpetual Preferred Stock, Series B
Trading Symbol SYFPrB
Security Exchange Name NYSE