Document and Entity Information Document - Entity Information - $ / shares		3 Months Ended
	Apr. 29, 2019	Mar. 31, 2019
Document - Entity Information [Abstract]
Entity Common Stock, Shares Outstanding	361,499,141
Entity Listing, Par Value Per Share	$ 0.01
Entity Registrant Name		HARTFORD FINANCIAL SERVICES GROUP INC/DE
Entity Central Index Key		0000874766
Current Fiscal Year End Date		--12-31
Entity Filer Category		Large Accelerated Filer
Entity Emerging Growth Company		false
Entity Small Business		false
Document Type		10-Q
Document Period End Date		Mar. 31, 2019
Document Fiscal Year Focus		2019
Document Fiscal Period Focus		Q1
Amendment Flag		false