Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 07, 2014	Jun. 28, 2013
Document and Entity Information
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Trading Symbol	WLP
Entity Registrant Name	WellPoint, Inc.
Entity Central Index Key	0001156039
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 24,439,366,963
Entity Common Stock, Shares Outstanding		282,459,121