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Cover Page Document - USD ($)
 12 Months Ended
Dec. 31, 2020
Jan. 21, 2021
Jun. 30, 2020
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2020    
Document Transition Report false    
Entity File Number 1-9804    
Entity Incorporation, State or Country Code MI    
Entity Tax Identification Number 38-2766606    
Entity Address, Address Line One 3350 Peachtree Road NE, Suite 150    
Entity Address, City or Town Atlanta,    
Entity Address, State or Province GA    
Entity Address, Postal Zip Code 30326    
City Area Code 404    
Local Phone Number 978-6400    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 9,077,356,567
Entity Common Stock, Shares Outstanding   265,894,240  
Documents Incorporated by Reference [Text Block]
Documents Incorporated by Reference
Applicable portions of the Proxy Statement for the 2021 Annual Meeting of Shareholders are incorporated by reference in Part III of this Form.
    
Entity Registrant Name PULTEGROUP INC/MI/    
Entity Central Index Key 0000822416    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Amendment Flag false    
Common Shares      
Document Information [Line Items]      
Title of 12(b) Security Common Shares, par value $0.01    
Trading Symbol PHM    
Security Exchange Name NYSE    
Series A Junior Participating Preferred Share Purchase Rights [Member]      
Document Information [Line Items]      
Title of 12(b) Security Series A Junior Participating Preferred Share Purchase Rights    
Security Exchange Name NYSE    
No Trading Symbol Flag true