Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Feb. 28, 2022	May 31, 2021
CURRENT ASSETS
Cash and cash equivalents	$ 6,065	$ 7,087
Receivables, less allowances of $793 and $742	11,668	12,069
Spare parts, supplies, and fuel, less allowances of $356 and $349	611	587
Prepaid expenses and other	1,122	837
Total current assets	19,466	20,580
PROPERTY AND EQUIPMENT, AT COST	74,146	70,077
Less accumulated depreciation and amortization	36,770	34,325
Net property and equipment	37,376	35,752
OTHER LONG-TERM ASSETS
Operating lease right-of-use assets, net	16,605	15,383
Goodwill	6,755	6,992
Other assets	3,906	4,070
Total other long-term assets	27,266	26,445
ASSETS	84,108	82,777
CURRENT LIABILITIES
Current portion of long-term debt	116	146
Accrued salaries and employee benefits	2,489	2,903
Accounts payable	4,187	3,841
Operating lease liabilities	2,395	2,208
Accrued expenses	4,803	4,562
Total current liabilities	13,990	13,660
LONG-TERM DEBT, LESS CURRENT PORTION	20,393	20,733
OTHER LONG-TERM LIABILITIES
Deferred income taxes	4,331	3,927
Pension, postretirement healthcare, and other benefit obligations	3,100	3,501
Self-insurance accruals	2,597	2,430
Operating lease liabilities	14,450	13,375
Other liabilities	721	983
Total other long-term liabilities	25,199	24,216
COMMITMENTS AND CONTINGENCIES
COMMON STOCKHOLDERS' INVESTMENT
Common stock, $0.10 par value; 800 million shares authorized; 318 million shares issued as of February 28, 2022 and May 31, 2021	32	32
Additional paid-in capital	3,686	3,481
Retained earnings	32,225	29,817
Accumulated other comprehensive loss	(887)	(732)
Treasury stock, at cost	(10,530)	(8,430)
Total common stockholders’ investment	24,526	24,168
LIABILITIES AND COMMON STOCKHOLDERS' INVESTMENT	$ 84,108	$ 82,777