Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Nov. 30, 2021	May 31, 2021
CURRENT ASSETS
Cash and cash equivalents	$ 6,833	$ 7,087
Receivables, less allowances of $792 and $742	12,197	12,069
Spare parts, supplies, and fuel, less allowances of $351 and $349	594	587
Prepaid expenses and other	1,123	837
Total current assets	20,747	20,580
PROPERTY AND EQUIPMENT, AT COST	72,974	70,077
Less accumulated depreciation and amortization	35,821	34,325
Net property and equipment	37,153	35,752
OTHER LONG-TERM ASSETS
Operating lease right-of-use assets, net	16,018	15,383
Goodwill	6,702	6,992
Other assets	3,627	4,070
Total other long-term assets	26,347	26,445
ASSETS	84,247	82,777
CURRENT LIABILITIES
Current portion of long-term debt	117	146
Accrued salaries and employee benefits	2,537	2,903
Accounts payable	4,190	3,841
Operating lease liabilities	2,371	2,208
Accrued expenses	4,669	4,562
Total current liabilities	13,884	13,660
LONG-TERM DEBT, LESS CURRENT PORTION	20,386	20,733
OTHER LONG-TERM LIABILITIES
Deferred income taxes	4,162	3,927
Pension, postretirement healthcare, and other benefit obligations	3,353	3,501
Self-insurance accruals	2,594	2,430
Operating lease liabilities	13,955	13,375
Other liabilities	973	983
Total other long-term liabilities	25,037	24,216
COMMITMENTS AND CONTINGENCIES
COMMON STOCKHOLDERS' INVESTMENT
Common stock, $0.10 par value; 800 million shares authorized; 318 million shares issued as of November 30, 2021 and May 31, 2021	32	32
Additional paid-in capital	3,653	3,481
Retained earnings	31,307	29,817
Accumulated other comprehensive loss	(977)	(732)
Treasury stock, at cost	(9,075)	(8,430)
Total common stockholders’ investment	24,940	24,168
LIABILITIES AND COMMON STOCKHOLDERS' INVESTMENT	$ 84,247	$ 82,777