Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Sep. 28, 2012		Sep. 30, 2011
OPERATING ACTIVITIES:
Net income	$ 365		$ 372
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	141		134
Amortization of intangible assets	181		189
Amortization of debt issuance costs and discounts	29		32
Stock-based compensation expense	83		77
Deferred income taxes	15		15
Excess income tax benefit from the exercise of stock options	(1)		(5)
Loss from joint venture			27
Other	8		5
Net change in assets and liabilities, excluding effects of acquisitions:
Trade accounts receivable, net	203		331
Inventories	5		2
Accounts payable	(34)		37
Accrued compensation and benefits	(107)		(130)
Deferred revenue	(339)		(346)
Income taxes payable	42		73
Other assets	(24)		(3)
Other liabilities	(49)		1
Net cash provided by operating activities	518		811
INVESTING ACTIVITIES:
Purchases of property and equipment	(168)		(124)
Cash payments for acquisitions, net of cash acquired	(28)		(364)
Purchases of held-to-maturity securities			(33)
Proceeds from held-to-maturity securities	46
Other	2		1
Net cash used in investing activities	(148)		(520)
FINANCING ACTIVITIES:
Net proceeds from sales of common stock under employee stock benefit plans	75		83
Excess income tax benefit from the exercise of stock options	1		5
Tax payments related to restricted stock units activities	(11)		(21)
Repurchase of common stock	(501)		(473)
Purchase of additional interest in subsidiary	(92)
Repayment of debt and other obligations			(601)
Proceeds from debt issuance, net of discount	996
Debt issuance costs	(7)
Net cash provided by (used in) financing activities	461		(1,007)
Effect of exchange rate fluctuations on cash and cash equivalents	9		(19)
Change in cash and cash equivalents	840		(735)
Beginning cash and cash equivalents	3,162	[1]	2,950
Ending cash and cash equivalents	$ 4,002		$ 2,215

[1] Derived from audited financial statements