Segment Information (Schedule Of Reportable Segment Data) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 27, 2013	Sep. 28, 2012	Sep. 27, 2013 segment	Sep. 28, 2012
Segment Reporting Information [Line Items]
Net revenue	$ 1,637	$ 1,699	$ 3,346	$ 3,367
Percentage of total net revenue	100.00%	100.00%	100.00%	100.00%
Operating income	248	297	472	547
Number of Reportable Segments			3
Total Segment Operating Income [Member]
Segment Reporting Information [Line Items]
Operating income	451	459	883	875
User Productivity & Protection [Member]
Segment Reporting Information [Line Items]
Net revenue	719	743	1,451	1,480
Percentage of total net revenue	44.00%	44.00%	43.00%	44.00%
Operating income	257	267	514	525
Operating margin	36.00%	36.00%	35.00%	35.00%
Information Security [Member]
Segment Reporting Information [Line Items]
Net revenue	316	324	652	638
Percentage of total net revenue	19.00%	19.00%	20.00%	19.00%
Operating income	49	14	75	6
Operating margin	16.00%	4.00%	12.00%	1.00%
Information Management [Member]
Segment Reporting Information [Line Items]
Net revenue	602	632	1,243	1,249
Percentage of total net revenue	37.00%	37.00%	37.00%	37.00%
Operating income	$ 145	$ 178	$ 294	$ 344
Operating margin	24.00%	28.00%	24.00%	28.00%