Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Nov. 30, 2017	May 31, 2017
CURRENT ASSETS
Cash and cash equivalents	$ 2,768	$ 3,969
Receivables, less allowances of $353 and $252	8,655	7,599
Spare parts, supplies and fuel, less allowances of $248 and $237	533	514
Prepaid expenses and other	925	546
Total current assets	12,881	12,628
PROPERTY AND EQUIPMENT, AT COST	53,240	50,626
Less accumulated depreciation and amortization	25,950	24,645
Net property and equipment	27,290	25,981
OTHER LONG-TERM ASSETS
Goodwill	7,325	7,154
Other assets	2,785	2,789
Total other long-term assets	10,110	9,943
ASSETS	50,281	48,552
CURRENT LIABILITIES
Short-term borrowings	250
Current portion of long-term debt	11	22
Accrued salaries and employee benefits	1,912	1,914
Accounts payable	3,147	2,752
Accrued expenses	2,907	3,230
Total current liabilities	8,227	7,918
LONG-TERM DEBT, LESS CURRENT PORTION	15,180	14,909
OTHER LONG-TERM LIABILITIES
Deferred income taxes	3,088	2,485
Pension, postretirement healthcare and other benefit obligations	3,868	4,487
Self-insurance accruals	1,651	1,494
Deferred lease obligations	633	531
Deferred gains, principally related to aircraft transactions	122	137
Other liabilities	457	518
Total other long-term liabilities	9,819	9,652
COMMITMENTS AND CONTINGENCIES
COMMON STOCKHOLDERS' INVESTMENT
Common stock, $0.10 par value; 800 million shares authorized; 318 million shares issued as of November 30, 2017 and May 31, 2017	32	32
Additional paid-in capital	3,055	3,005
Retained earnings	21,785	20,833
Accumulated other comprehensive loss	(434)	(415)
Treasury stock, at cost	(7,383)	(7,382)
Total common stockholders’ investment	17,055	16,073
LIABILITIES AND STOCKHOLDERS' INVESTMENT	$ 50,281	$ 48,552