DERIVATIVE FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

May 31, 2018

Derivative Instrument Detail [Abstract]

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

		Fair Value as of May 31,
(in millions)	Balance Sheet Location	2018			2017
Interest rate swap agreements designated as fair value hedges	Other current liabilities	$	(7	)	$	—
Interest rate swap agreements designated as fair value hedges	Other non-current assets	$	29		$	40
Interest rate swap agreements designated as fair value hedges	Other non-current liabilities	$	(48	)	$	—
Cross-currency swap agreements designated as cash flow hedges	Other non-current liabilities	$	(103	)	$	(191	)
Foreign currency borrowings designated as net investment hedge	Notes payable, non-current	$	—		$	(980	)

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

	Amount of Gain (Loss) Recognized in Accumulated OCI or OCL (Effective Portion)
	Year Ended May 31,
(in millions)	2018			2017			2016
Cross-currency swap agreements designated as cash flow hedges	$	88		$	27		$	26
Foreign currency borrowings designated as net investment hedge	$	(30	)	$	(1	)	$	(25	)

	Amount of Gain (Loss) Reclassified from Accumulated OCI or OCL into Income (Effective Portion)
		Year Ended May 31,
(in millions)	Location	2018		2017		2016
Cross-currency swap agreements designated as cash flow hedges	Non-operating income (expense), net	$	51	$	2	$	41

	Amount of Gain (Loss) Recognized in Income on Derivative
		Year Ended May 31,
(in millions)	Location	2018			2017			2016
Interest rate swap agreements designated as fair value hedges	Interest expense	$	(66	)	$	(82	)	$	48

	Amount of Gain (Loss) on Hedged Item Recognized in Income Attributable to Risk Being Hedged
		Year Ended May 31,
(in millions)	Location	2018		2017		2016
Interest rate swap agreements designated as fair value hedges	Interest expense	$	66	$	82	$	(48	)