Financial Instruments and Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Jul. 05, 2019	Jun. 29, 2018	Mar. 29, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of non-marketable equity investments	$ 186		$ 184
Equity method investment	22		32
Loss from equity interest	11	$ 26
Digicert Parent, Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity method investment	22		32
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of debt	4,029		$ 3,964
Other expense, net | Digicert Parent, Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loss from equity interest	$ 11	$ 26