CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 118	$ 553
Accounts receivable, net of allowance for doubtful accounts of $25 and $33, respectively	2,278	2,097
Other receivables, net of allowance for doubtful accounts of $8 and $7, respectively	268	527
Parts and supplies	135	124
Other assets	270	239
Total current assets	3,069	3,540
Property and equipment, net of accumulated depreciation and amortization of $20,537 and $19,337, respectively	14,419	14,148
Goodwill	9,028	8,994
Other intangible assets, net	898	1,024
Restricted trust and escrow accounts	348	347
Investments in unconsolidated entities	432	426
Other assets	903	866
Total assets	29,097	29,345
Current liabilities:
Accounts payable	1,375	1,121
Accrued liabilities	1,428	1,342
Deferred revenues	571	539
Current portion of long-term debt	708	551
Total current liabilities	4,082	3,553
Long-term debt, less current portion	12,697	13,259
Deferred income taxes	1,694	1,806
Landfill and environmental remediation liabilities	2,373	2,222
Other liabilities	1,125	1,051
Total liabilities	21,971	21,891
Commitments and contingencies (Note 10)
Waste Management, Inc. stockholders' equity:
Common stock, $0.01 par value; 1,500,000,000 shares authorized; 630,282,461 shares issued	6	6
Additional paid-in capital	5,169	5,129
Retained earnings	12,004	11,159
Accumulated other comprehensive income (loss)	17	39
Treasury stock at cost, 214,158,636 and 207,480,827 shares, respectively	(10,072)	(8,881)
Total Waste Management, Inc. stockholders' equity	7,124	7,452
Noncontrolling interests	2	2
Total equity	7,126	7,454
Total liabilities and equity	$ 29,097	$ 29,345