Hedging Activities (Tables)

6 Months Ended

Sep. 30, 2015

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	September 30, 2015						March 31, 2015
		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	$	17	$	—	$	76	$	14	$	—	$	76
Foreign exchange contracts (non-current)	Other assets	69		—		323		53		—		323
Total		$	86	$	—			$	67	$	—
Derivatives not designated for hedge accounting
Foreign exchange contracts (current)	Prepaid expenses and other	$	26	$	—	$	1,769	$	7	$	—	$	493
Foreign exchange contracts (current)	Other accrued liabilities	—		7		125		—		79		1,262
Total		$	26	$	7			$	7	$	79