CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2014
Cash flows provided from operating activities:
Net income attributable to AAR and noncontrolling interest	$ 47.7	$ 10.4	$ 73.2
Less: Loss (Income) from discontinued operations	(7.2)	(64.9)	(6.0)
Income (Loss) from continuing operations attributable to AAR	40.5	(54.5)	67.2
Adjustments to reconcile net income attributable to AAR and noncontrolling interest to net cash provided from operating activities:
Depreciation and intangible amortization	50.0	56.0	64.7
Impairment Charges		27.4
Amortization of stock-based compensation	6.7	7.4	8.6
Amortization of overhaul costs	20.8	23.2	33.0
Deferred tax provision (benefit)	4.8	(52.6)	19.0
Loss on extinguishment of debt	0.4	44.9
Changes in certain assets and liabilities, net of acquisitions:
Accounts receivable	(16.1)	(4.6)	21.1
Inventories	(26.4)	(32.2)	(26.0)
Rotable spares and equipment on or available for short-term lease	(7.4)	6.6	11.3
Equipment on or available for long-term lease	(10.2)	6.2	(41.7)
Accounts and trade notes payable	19.4	3.9	26.0
Accrued and other liabilities	(29.0)	37.7	4.8
Other, primarily program and overhaul costs	(23.1)	(0.8)	(21.7)
Net cash provided from operating activities-continuing operations	30.4	68.6	166.3
Net cash provided from (used in) operating activities -discontinued operations	1.7	(111.6)	(26.5)
Net cash provided from (used in) operating activities	32.1	(43.0)	139.8
Cash flows used in investing activities:
Property, plant and equipment expenditures	(88.4)	(42.1)	(20.8)
Proceeds from sale of assets	45.1	46.8	2.0
Other	(3.8)	2.5	(1.1)
Net cash provided by (used in) investing activities-continuing operations	(47.1)	7.2	(19.9)
Net cash provided from used in investing activities - discontinued operations	30.2	682.0	(21.0)
Net cash provided from (used in) investing activities	(16.9)	689.2	(40.9)
Cash flows (used in) provided from financing activities:
Short-term borrowings (repayments), net	60.0	(80.0)	10.0
Reduction in long-term borrowings	(70.6)	(394.8)	(88.9)
Cash dividends	(10.4)	(11.9)	(11.8)
Premium paid on early retirement of debt		(45.6)
Purchase of treasury stock	(18.8)	(151.5)	(1.0)
Other	1.4	6.3	5.8
Net cash used in financing activities- continuing operations	(38.4)	(677.5)	(85.9)
Net cash used in financing activities- discontinued operations		(0.6)
Net cash used in financing activities	(38.4)	(678.1)	(85.9)
Effect of exchange rate changes on cash	(0.3)	(2.6)	0.9
Increase (Decrease) in cash and cash equivalents	(23.5)	(34.5)	13.9
Cash and cash equivalents, beginning of year	54.7	89.2	75.3
Cash and cash equivalents, end of year	$ 31.2	$ 54.7	$ 89.2