Hedging Activities (Tables)

9 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of information regarding the fair value of derivatives on a gross basis

Information regarding the fair value of derivatives on a gross basis is as follows:

	Balance Sheet Caption	December 31, 2018						March 31, 2018
		Fair Value of Derivative				U.S. Dollar Notional		Fair Value of Derivative				U.S. Dollar Notional
(In millions)		Asset		Liability				Asset		Liability
Derivatives designated for hedge accounting
Foreign exchange contracts (current)	Prepaid expenses and other	$	19	$	—	$	81	$	15	$	—	$	81
Foreign exchange contracts (noncurrent)	Other Noncurrent Assets	18		—		81		14		—		81
Cross currency swaps (current)	Prepaid expenses and other/Other accrued liabilities	40		16		371		—		7		504
Cross currency swaps (noncurrent)	Other Noncurrent Assets/Liabilities	173		49		4,912		—		222		3,508
Total		$	250	$	65			$	29	$	229
Derivatives not designated for hedge accounting
Foreign exchange contracts (current)	Prepaid expenses and other	$	—	$	—	$	6	$	—	$	—	$	13
Foreign exchange contracts (current)	Other accrued liabilities	—		—		4		—		—		16
Total		$	—	$	—			$	—	$	—