Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Amortization Of Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 61	$ 5	$ 131	$ 16
Cost of revenue
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	44	0	88	0
Operating expenses
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	61	5	131	16
Total amortization
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 105	$ 5	$ 219	$ 16