Condensed Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2015	Feb. 28, 2014
Condensed Consolidated Statements of Income
REVENUES	$ 11,716	$ 11,301	$ 35,339	$ 33,728
OPERATING EXPENSES:
Salaries and employee benefits	4,411	4,167	12,904	12,392
Purchased transportation	2,165	2,063	6,404	5,982
Rentals and landing fees	686	662	2,009	1,950
Depreciation and amortization	652	652	1,954	1,938
Fuel	810	1,163	2,982	3,403
Maintenance and repairs	505	438	1,604	1,397
Other	1,525	1,515	4,520	4,403
OPERATING EXPENSES	10,754	10,660	32,377	31,465
OPERATING INCOME	962	641	2,962	2,263
OTHER INCOME (EXPENSE):
Interest, net	(58)	(38)	(153)	(95)
Other, net	5	(9)	8	(16)
OTHER INCOME (EXPENSE)	(53)	(47)	(145)	(111)
INCOME BEFORE INCOME TAXES	909	594	2,817	2,152
PROVISION FOR INCOME TAXES	329	216	1,015	785
NET INCOME	$ 580	$ 378	$ 1,802	$ 1,367
EARNINGS PER COMMON SHARE:
Basic	$ 2.05	$ 1.24	$ 6.34	$ 4.38
Diluted	$ 2.01	$ 1.23	$ 6.25	$ 4.34
DIVIDENDS DECLARED PER COMMON SHARE	$ 0.20	$ 0.15	$ 0.80	$ 0.60