Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 3,272	$ 1,437
Receivables from customers, less allowances of $20 in both 2014 and 2013 (N)	1,480	1,221
Other receivables (N)	925	597
Inventories (F)	3,138	2,705
Prepaid expenses and other current assets	874	1,009
Total current assets	9,689	6,969
Properties, plants, and equipment	36,747	36,866
Less: accumulated depreciation, depletion, and amortization	20,031	19,227
Properties, plants, and equipment, net	16,716	17,639
Goodwill	3,389	3,415
Investments	1,946	1,907
Deferred income taxes	2,981	3,184
Other noncurrent assets	2,401	2,628
Total assets	37,122	35,742
Current liabilities:
Short-term borrowings (G)	57	57
Commercial paper	99	0
Accounts payable, trade	2,979	2,960
Accrued compensation and retirement costs	951	1,013
Taxes, including income taxes	275	376
Other current liabilities	958	1,044
Long-term debt due within one year (G)	35	655
Total current liabilities	5,354	6,105
Long-term debt, less amount due within one year (G)	8,797	7,607
Accrued pension benefits	2,840	3,183
Accrued other postretirement benefits (O)	2,119	2,354
Other noncurrent liabilities and deferred credits	2,877	2,971
Total liabilities	21,987	22,220
CONTINGENCIES AND COMMITMENTS (H)
Alcoa shareholders' equity:
Preferred stock	55	55
Mandatory convertible preferred stock (K)	3	0
Common stock (G)	1,267	1,178
Additional capital (G) & (K)	8,760	7,509
Retained earnings	9,276	9,272
Treasury stock, at cost	(3,129)	(3,762)
Accumulated other comprehensive loss (C)	(3,836)	(3,659)
Total Alcoa shareholders' equity	12,396	10,593
Noncontrolling interests	2,739	2,929
Total equity	15,135	13,522
Total liabilities and equity	$ 37,122	$ 35,742