Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 967,789	$ 1,120,790
Cash in consolidated joint ventures	114,604	108,406
Total cash and cash equivalents	1,082,393	1,229,196
Accounts receivable-net	2,581,708	2,619,491
Contract assets	1,349,285	1,369,031
Prepaid expenses and other current assets	741,739	739,044
Current assets held for sale	107,849	139,426
Income taxes receivable	67,294	77,355
TOTAL CURRENT ASSETS	5,930,268	6,173,543
PROPERTY AND EQUIPMENT-NET	400,902	398,876
DEFERRED TAX ASSETS-NET	373,301	360,260
INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES	327,500	328,906
GOODWILL	3,497,763	3,502,499
INTANGIBLE ASSETS-NET	50,174	54,867
OTHER NON-CURRENT ASSETS	278,117	307,927
OPERATING LEASE RIGHT-OF-USE ASSETS	584,993	607,076
TOTAL ASSETS	11,443,018	11,733,954
CURRENT LIABILITIES:
Short-term debt	6,718	4,369
Accounts payable	2,044,125	2,090,479
Accrued expenses and other current liabilities	2,263,126	2,174,201
Income taxes payable	57,671	50,511
Contract liabilities	1,011,811	1,058,643
Current liabilities held for sale	88,606	94,043
Current portion of long-term debt	41,406	49,469
TOTAL CURRENT LIABILITIES	5,513,463	5,521,715
OTHER LONG-TERM LIABILITIES	106,872	145,444
OPERATING LEASE LIABILITIES, NON-CURRENT	653,785	679,059
LONG-TERM LIABILITIES HELD FOR SALE	7,565	11,095
DEFERRED TAX LIABILITY-NET	5,693	5,420
PENSION BENEFIT OBLIGATIONS	371,520	383,904
LONG-TERM DEBT	2,157,881	2,157,740
TOTAL LIABILITIES	8,816,779	8,904,377
COMMITMENTS AND CONTINGENCIES (Note 15)
AECOM STOCKHOLDERS' EQUITY:
Common stock-authorized, 300,000,000 shares of $0.01 par value as of December 31, 2021 and September 30, 2021; issued and outstanding 141,335,424 and 143,168,815 shares as of December 31, 2021 and September 30, 2021, respectively	1,413	1,432
Additional paid-in capital	4,085,333	4,115,541
Accumulated other comprehensive loss	(899,172)	(900,377)
Accumulated deficits	(676,902)	(504,126)
TOTAL AECOM STOCKHOLDERS' EQUITY	2,510,672	2,712,470
Noncontrolling interests	115,567	117,107
TOTAL STOCKHOLDERS' EQUITY	2,626,239	2,829,577
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 11,443,018	$ 11,733,954