Goodwill And Acquisition-Related Intangibles, Net (Schedule Of Future Amortization Of Acquisition-Related Intangibles) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Mar. 31, 2022
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$ 176
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	159
Finite-Lived Intangible Assets, Amortization Expense, Year Two	125
Finite-Lived Intangible Assets, Amortization Expense, Year Three	122
Finite-Lived Intangible Assets, Amortization Expense, Year Four	102
Finite-Lived Intangible Assets, Amortization Expense, Year Five	99
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	30
Finite-Lived Intangible Assets, Net	813	$ 882
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year through after Year Five [Member]
Finite-Lived Intangible Assets
Finite-Lived Intangible Assets, Net	$ 813