XML 25 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Cover - shares
3 Months Ended
Mar. 31, 2020
Apr. 24, 2020
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2020  
Document Transition Report false  
Entity File Number 000-32191  
Entity Registrant Name PRICE T ROWE GROUP INC  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 52-2264646  
Entity Address, Address Line One 100 East Pratt Street  
Entity Address, City or Town Baltimore  
Entity Address, State or Province MD  
Entity Address, Postal Zip Code 21202  
City Area Code 410  
Local Phone Number 345-2000  
Title of 12(b) Security Common stock, $.20 par value per share  
Trading Symbol TROW  
Security Exchange Name NASDAQ  
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  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   227,548,883
Entity Central Index Key 0001113169  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2020  
Amendment Flag false