Fair Value Measurements (Tables)

3 Months Ended

Jun. 30, 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 June 30, 2015		(Level 1)		(Level 2)		(Level 3)		Balance Sheet Classification
Assets
Bank and time deposits	$	174	$	174	$	—	$	—	Cash equivalents
Money market funds	14		14		—		—		Cash equivalents
Available-for-sale securities:
Corporate bonds	568		—		568		—		Short-term investments and cash equivalents
U.S. Treasury securities	218		218		—		—		Short-term investments
U.S. agency securities	191		—		191		—		Short-term investments
Commercial paper	119		—		119		—		Short-term investments and cash equivalents
Foreign currency derivatives	9		—		9		—		Other current assets
Deferred compensation plan assets (a)	9		9		—		—		Other assets
Total assets at fair value	$	1,302	$	415	$	887	$	—
Liabilities
Foreign currency derivatives	12		—		12		—		Accrued and other current liabilities
Deferred compensation plan liabilities (a)	10		10		—		—		Other liabilities
Total liabilities at fair value	$	22	$	10	$	12	$	—