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	)