Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 32	$ 39
Accounts receivable, net of allowance for doubtful accounts of $24 and $25, respectively	1,700	1,549
Other receivables	432	545
Parts and supplies	90	92
Other assets	122	120
Total current assets	2,376	2,345
Property and equipment, net of accumulated depreciation and amortization of $17,152 and $16,420, respectively	10,950	10,665
Goodwill	6,215	5,984
Other intangible assets, net	591	477
Investments in unconsolidated entities	320	360
Other assets	407	536
Total assets	20,859	20,367
Current liabilities:
Accounts payable	799	721
Accrued liabilities	1,085	1,064
Deferred revenues	493	472
Current portion of long-term debt	417	253
Total current liabilities	2,794	2,510
Long-term debt, less current portion	8,893	8,676
Deferred income taxes	1,482	1,391
Landfill and environmental remediation liabilities	1,675	1,584
Other liabilities	695	839
Total liabilities	15,539	15,000
Commitments and contingencies
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	4,850	4,827
Retained earnings	7,388	6,939
Accumulated other comprehensive income (loss)	(80)	(127)
Treasury stock at cost, 190,966,584 and 183,105,326 shares, respectively	(6,867)	(6,300)
Total Waste Management, Inc. stockholders' equity	5,297	5,345
Noncontrolling interests	23	22
Total equity	5,320	5,367
Total liabilities and equity	$ 20,859	$ 20,367

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.