XML 9 R1.htm IDEA: XBRL DOCUMENT v3.20.4
Cover
Feb. 22, 2021
Feb. 02, 2021
Document Information [Line Items]    
Document Type 8-K  
Document Period End Date Feb. 22, 2021  
Entity Registrant Name UNITEDHEALTH GROUP INCORPORATED  
Entity Incorporation, State or Country Code DE  
Entity File Number 1-10864  
Entity Tax Identification Number 41-1321939  
Entity Address, Address Line One   UnitedHealth Group Center, 9900 Bren Road East,
Entity Address, City or Town   Minnetonka,
Entity Address, State or Province   MN
Entity Address, Postal Zip Code   55343
City Area Code 952  
Local Phone Number 936-1300  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Title of 12(b) Security Common Stock, $.01 par value  
Trading Symbol UNH  
Security Exchange Name NYSE  
Entity Emerging Growth Company false  
Entity Central Index Key 0000731766  
Amendment Flag false  
Current Fiscal Year End Date --12-31