Financial Instruments (Tables)

12 Months Ended

Mar. 31, 2015

Carrying Amounts and Estimated Fair Values of Current and Long-Term Debt

The following table presents carrying amounts and estimated fair values of current and long-term debt:



	Carrying amount at March 31, 2015		Estimated Fair Value Using Input Type
	Carrying amount at March 31, 2015		Quoted prices in active markets		Observable		Unobservable		Total estimated fair value
	(in millions)
Current and long-term debt	$	33,434	$	27,238	$	4,906	$	1,410	$	33,554



	Carrying amount at March 31, 2014		Estimated Fair Value Using Input Type
	Carrying amount at March 31, 2014		Quoted prices in active markets		Observable		Unobservable		Total estimated fair value
	(in millions)
Current and long-term debt	$	32,277	$	27,516	$	5,421	$	1,262	$	34,199

- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

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