Fair Value Measurements (Tables)

9 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Fair Value Assets And Liabilities Measured On Recurring Basis

			Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets  for Identical Financial Instruments		Significant Other Observable Inputs		Significant Unobservable Inputs
	As of March 31, 2015		(Level 1)		(Level 2)		(Level 3)		Balance Sheet Classification
Assets
Bank and time deposits	$	175	$	175	$	—	$	—	Cash equivalents
Money market funds	7		7		—		—		Cash equivalents
Available-for-sale securities:
Corporate bonds	468		—		468		—		Short-term investments and cash equivalents
U.S. Treasury securities	214		214		—		—		Short-term investments
U.S. agency securities	180		—		180		—		Short-term investments and cash equivalents
Commercial paper	140		—		140		—		Short-term investments and cash equivalents
Foreign currency derivatives	18		—		18		—		Other current assets
Deferred compensation plan assets (a)	9		9		—		—		Other assets
Total assets at fair value	$	1,211	$	405	$	806	$	—
Liabilities
Foreign currency derivatives	9		—		9		—		Accrued and other current liabilities
Deferred compensation plan liabilities (a)	9		9		—		—		Other liabilities
Total liabilities at fair value	$	18	$	9	$	9	$	—

			Fair Value Measurements at Reporting Date Using
			Quoted Prices in Active Markets  for Identical Financial Instruments		Significant Other Observable Inputs		Significant Unobservable Inputs
	As of December 31, 2015		(Level 1)		(Level 2)		(Level 3)		Balance Sheet Classification
Assets
Bank and time deposits	$	392	$	392	$	—	$	—	Cash equivalents
Money market funds	5		5		—		—		Cash equivalents
Available-for-sale securities:
Corporate bonds	578		—		578		—		Short-term investments
U.S. Treasury securities	206		206		—		—		Short-term investments and cash equivalents
U.S. agency securities	159		—		159		—		Short-term investments and cash equivalents
Commercial paper	63		—		63		—		Short-term investments and cash equivalents
Foreign currency derivatives	17		—		17		—		Other current assets and other assets
Deferred compensation plan assets (a)	9		9		—		—		Other assets
Total assets at fair value	$	1,429	$	612	$	817	$	—
Liabilities
Foreign currency derivatives	8		—		8		—		Accrued and other current liabilities and other liabilities
Deferred compensation plan liabilities (a)	10		10		—		—		Other liabilities
Total liabilities at fair value	$	18	$	10	$	8	$	—