Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 10,237	$ 14,557
Marketable securities	3,544	2,859
Inventories	7,369	8,299
Accounts receivable, net and other	4,772	5,612
Total current assets	25,922	31,327
Property and equipment, net	17,736	16,967
Goodwill	3,491	3,319
Other assets	2,926	2,892
Total assets	50,075	54,505
Current liabilities:
Accounts payable	11,917	16,459
Accrued expenses and other	8,840	9,807
Unearned revenue	2,420	1,823
Total current liabilities	23,177	28,089
Long-term debt	8,257	8,265
Other long-term liabilities	7,768	7,410
Commitments and contingencies (Note 3)
Stockholders’ equity:
Preferred stock, $0.01 par value: Authorized shares - 500 Issued and outstanding shares - none	0	0
Common stock, $0.01 par value: Authorized shares - 5,000 Issued shares - 489 and 488 Outstanding shares - 466 and 465	5	5
Treasury stock, at cost	(1,837)	(1,837)
Additional paid-in capital	11,565	11,135
Accumulated other comprehensive loss	(752)	(511)
Retained earnings	1,892	1,949
Total stockholders’ equity	10,873	10,741
Total liabilities and stockholders’ equity	$ 50,075	$ 54,505