Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Aug. 31, 2021	May 31, 2021
CURRENT ASSETS
Cash and cash equivalents	$ 6,853	$ 7,087
Receivables, less allowances of $790 and $742	11,125	12,069
Spare parts, supplies, and fuel, less allowances of $348 and $349	577	587
Prepaid expenses and other	991	837
Total current assets	19,546	20,580
PROPERTY AND EQUIPMENT, AT COST	71,542	70,077
Less accumulated depreciation and amortization	35,061	34,325
Net property and equipment	36,481	35,752
OTHER LONG-TERM ASSETS
Operating lease right-of-use assets, net	15,414	15,383
Goodwill	6,843	6,992
Other assets	3,764	4,070
Total other long-term assets	26,021	26,445
ASSETS	82,048	82,777
CURRENT LIABILITIES
Current portion of long-term debt	125	146
Accrued salaries and employee benefits	2,200	2,903
Accounts payable	3,822	3,841
Operating lease liabilities	2,263	2,208
Accrued expenses	4,500	4,562
Total current liabilities	12,910	13,660
LONG-TERM DEBT, LESS CURRENT PORTION	20,554	20,733
OTHER LONG-TERM LIABILITIES
Deferred income taxes	3,969	3,927
Pension, postretirement healthcare, and other benefit obligations	3,451	3,501
Self-insurance accruals	2,484	2,430
Operating lease liabilities	13,382	13,375
Other liabilities	977	983
Total other long-term liabilities	24,263	24,216
COMMITMENTS AND CONTINGENCIES
COMMON STOCKHOLDERS' INVESTMENT
Common stock, $0.10 par value; 800 million shares authorized; 318 million shares issued as of August 31, 2021 and May 31, 2021	32	32
Additional paid-in capital	3,610	3,481
Retained earnings	30,462	29,817
Accumulated other comprehensive loss	(881)	(732)
Treasury stock, at cost	(8,902)	(8,430)
Total common stockholders’ investment	24,321	24,168
LIABILITIES AND COMMON STOCKHOLDERS' INVESTMENT	$ 82,048	$ 82,777