Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 1,120,790	$ 1,599,688
Cash in consolidated joint ventures	108,406	108,644
Total cash and cash equivalents	1,229,196	1,708,332
Accounts receivable-net	2,619,491	2,920,730
Contract assets	1,369,031	1,611,525
Prepaid expenses and other current assets	739,044	691,707
Current assets held for sale	139,426	562,435
Income taxes receivable	77,355	35,637
TOTAL CURRENT ASSETS	6,173,543	7,530,366
PROPERTY AND EQUIPMENT-NET	398,876	381,672
DEFERRED TAX ASSETS-NET	360,260	361,675
INVESTMENTS IN UNCONSOLIDATED JOINT VENTURES	328,906	297,595
GOODWILL	3,502,499	3,484,221
INTANGIBLE ASSETS-NET	54,867	76,917
OTHER NON-CURRENT ASSETS	307,927	160,036
OPERATING LEASE RIGHT-OF-USE ASSETS	607,076	652,115
NON-CURRENT ASSETS HELD FOR SALE		54,354
TOTAL ASSETS	11,733,954	12,998,951
CURRENT LIABILITIES:
Short-term debt	4,369	223
Accounts payable	2,090,479	2,358,228
Accrued expenses and other current liabilities	2,174,201	2,249,704
Income taxes payable	50,511	47,103
Contract liabilities	1,058,643	996,922
Current liabilities held for sale	94,043	417,623
Current portion of long-term debt	49,469	20,651
TOTAL CURRENT LIABILITIES	5,521,715	6,090,454
OTHER LONG-TERM LIABILITIES	145,444	162,784
OPERATING LEASE LIABILITIES, NON-CURRENT	679,059	745,287
LONG-TERM LIABILITIES HELD FOR SALE	11,095	79,254
DEFERRED TAX LIABILITY-NET	5,420	3,491
PENSION BENEFIT OBLIGATIONS	383,904	463,001
LONG-TERM DEBT	2,157,740	2,041,136
TOTAL LIABILITIES	8,904,377	9,585,407
COMMITMENTS AND CONTINGENCIES (Note 18)
AECOM STOCKHOLDERS' EQUITY:
Common stock-authorized, 300,000,000 shares of $0.01 par value as of September 30, 2021 and 2020; issued and outstanding 143,168,815 and 157,044,687 shares as of September 30, 2021 and 2020, respectively	1,432	1,570
Additional paid-in capital	4,115,541	4,035,414
Accumulated other comprehensive loss	(900,377)	(918,674)
(Accumulated deficits) / Retained earnings	(504,126)	174,248
TOTAL AECOM STOCKHOLDERS' EQUITY	2,712,470	3,292,558
Noncontrolling interests	117,107	120,986
TOTAL STOCKHOLDERS' EQUITY	2,829,577	3,413,544
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 11,733,954	$ 12,998,951