Derivative Instruments (Narrative) (Details) $ in Millions	9 Months Ended
	Dec. 30, 2016 USD ($)
Derivative [Line Items]
Cash flow hedge gains to be reclassified during next 12 months	$ 8
Derivatives designated for hedge accounting | Total return swaps
Derivative [Line Items]
Notional amount of derivatives outstanding	602
Notional amount of derivatives terminated	18
Fair value of derivatives terminated (less than)	1
Loss on termination of derivative (less than)	1
Derivatives designated for hedge accounting | Foreign Currency forward contracts
Derivative [Line Items]
Notional amount of derivatives outstanding	371
Derivatives not designated for hedge accounting | Foreign Currency forward contracts
Derivative [Line Items]
Notional amount of derivatives outstanding	$ 1,900