Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 42,122	$ 36,092
Marketable securities	42,274	18,929
Inventories	23,795	20,497
Accounts receivable, net and other	24,542	20,816
Total current assets	132,733	96,334
Property and equipment, net	113,114	72,705
Operating leases	37,553	25,141
Goodwill	15,017	14,754
Other assets	22,778	16,314
Total assets	321,195	225,248
Current liabilities:
Accounts payable	72,539	47,183
Accrued expenses and other	44,138	32,439
Unearned revenue	9,708	8,190
Total current liabilities	126,385	87,812
Long-term lease liabilities	52,573	39,791
Long-term debt	31,816	23,414
Other long-term liabilities	17,017	12,171
Commitments and contingencies (Note 7)
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 - 521 and 527 Outstanding shares - 498 and 503	5	5
Treasury stock, at cost	(1,837)	(1,837)
Additional paid-in capital	42,865	33,658
Accumulated other comprehensive income (loss)	(180)	(986)
Retained earnings	52,551	31,220
Total stockholders’ equity	93,404	62,060
Total liabilities and stockholders’ equity	$ 321,195	$ 225,248