DERIVATIVE FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Feb. 28, 2019

Derivative Instrument Detail [Abstract]

Fair Values of Derivative and Non-Derivative Instruments Designated as Hedges in Consolidated Balance Sheets

				Fair Value as of
(in millions)		Balance Sheet Location		February 28, 2019				May 31, 2018
Derivative assets:
Interest rate swap agreements designated as fair value hedges		Other non-current assets		$	—			$	24
Cross-currency interest rate swap agreements designated as fair value hedges		Other non-current assets			—				5
Total derivative assets				$	—			$	29
Derivative liabilities:
Interest rate swap agreements designated as fair value hedges		Other current liabilities		$	11			$	7
Interest rate swap agreements designated as fair value hedges		Other non-current liabilities			15				48
Cross-currency interest rate swap agreements designated as fair value hedges		Other non-current liabilities			15				—
Cross-currency swap agreements designated as cash flow hedges		Other non-current liabilities			165				103
Total derivative liabilities				$	206			$	158

Effects of Fair Value Hedging Relationships on Hedged Items in Condensed Consolidated Balance Sheet

(in millions)		February 28, 2019				May 31, 2018
Notes payable and other borrowings, current:
Carrying amount of hedged item		$	1,988			$	1,492
Cumulative hedging adjustments included in the carrying amount			(11	)			(7	)
Notes payable and other borrowings, non-current:
Carrying amounts of hedged items			3,631				5,584
Cumulative hedging adjustments included in the carrying amount			24				(19	)

Effects of Derivative and Non-Derivative Instruments Designated as Hedges on Income

		Three Months Ended February 28,
		2019								2018
(in millions)		Non-operating income, net				Interest expense				Non-operating income, net				Interest expense
Condensed consolidated statements of income line amounts in which the hedge effects were recorded		$	198			$	(509	)		$	409			$	(533	)
Gain (loss) on hedges recognized in income:
Interest rate swaps designated as fair value hedges:
Derivative instruments		$	—			$	43			$	—			$	(47	)
Hedged items			—				(43	)			—				47
Cross-currency interest rate swaps designated as fair value hedges:
Derivative instruments			7				9				—				—
Hedged items			(4	)			(9	)			—				—
Cross-currency swap agreements designated as cash flow hedges:
Amount of gain reclassified from accumulated OCI or OCL			11				—				51				—
Total gain on hedges recognized in income		$	14			$	—			$	51			$	—

		Nine Months Ended February 28,
		2019								2018
(in millions)		Non-operating income, net				Interest expense				Non-operating income, net				Interest expense
Condensed consolidated statements of income line amounts in which the hedge effects were recorded		$	681			$	(1,557	)		$	891			$	(1,477	)
Gain (loss) on hedges recognized in income:
Interest rate swaps designated as fair value hedges:
Derivative instruments		$	—			$	5			$	—			$	(94	)
Hedged items			—				(5	)			—				94
Cross-currency interest rate swaps designated as fair value hedges:
Derivative instruments			(21	)			10				—				—
Hedged items			22				(10	)			—				—
Cross-currency swap agreements designated as cash flow hedges:
Amount of gain (loss) reclassified from accumulated OCI or OCL			(26	)			—				142				—
Total gain (loss) on hedges recognized in income		$	(25	)		$	—			$	142			$	—

Effects of Derivative and Non-Derivative Instruments Designated as Hedges on Other Comprehensive Income (OCI) or Loss (OCL)

		Three Months Ended February 28,								Nine Months Ended February 28,
(in millions)		2019				2018				2019				2018
Cross-currency swap agreements designated as cash flow hedges		$	(7	)		$	57			$	(62	)		$	161
Foreign currency borrowings designated as net investment hedge			—				(31	)			—				(85	)