Condensed Consolidated Statements Of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Sep. 28, 2012	Sep. 30, 2011
Net revenue:
Content, subscription, and maintenance	$ 1,498	$ 1,452	$ 2,973	$ 2,891
License	201	229	394	443
Total net revenue	1,699	1,681	3,367	3,334
Cost of revenue:
Content, subscription, and maintenance	247	232	496	462
License	18	10	35	17
Amortization of intangible assets	19	23	37	45
Total cost of revenue	284	265	568	524
Gross profit	1,415	1,416	2,799	2,810
Operating expenses:
Sales and marketing	659	697	1,308	1,362
Research and development	247	247	496	486
General and administrative	109	106	219	211
Amortization of intangible assets	72	73	144	144
Restructuring and transition	23	8	58	20
Total operating expenses	1,110	1,131	2,225	2,223
Operating income	305	285	574	587
Interest income	2	4	5	8
Interest expense	(35)	(28)	(64)	(60)
Other income (expense), net	1	2	(5)	(2)
Loss from joint venture		(14)		(27)
Income before income taxes	273	249	510	506
Provision for income taxes	80	67	145	134
Net income	193	182	365	372
Less: Loss attributable to noncontrolling interest				(1)
Net income attributable to Symantec Corporation stockholders	$ 193	$ 182	$ 365	$ 373
Net income per share attributable to Symantec Corporation stockholders - basic	$ 0.27	$ 0.24	$ 0.51	$ 0.50
Net income per share attributable to Symantec Corporation stockholders - diluted	$ 0.27	$ 0.24	$ 0.51	$ 0.49
Weighted-average shares outstanding attributable to Symantec Corporation stockholders - basic	702	745	709	750
Weighted-average shares outstanding attributable to Symantec Corporation stockholders - diluted	708	751	714	758