v3.19.3
Cover
Oct. 18, 2019
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 18, 2019
Entity File Number 1-12154
Entity Registrant Name Waste Management, Inc.
Entity Central Index Key 0000823768
Entity Tax Identification Number 73-1309529
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 1001 Fannin
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77002
City Area Code 713
Local Phone Number 512-6200
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.01 par value
Trading Symbol WM
Security Exchange Name NYSE
Entity Emerging Growth Company false