Income Taxes (Tables)

12 Months Ended

Mar. 31, 2012

Income Taxes [Abstract]

Income tax provision (benefit)

	Year Ended March 31,
	2012			2011			2010
				(In millions)
Current:
Federal	$	67.0		$	(14.4	)	$	26.2
State		11.2			7.7			(0.5	)
Foreign		49.1			40.9			44.2
Total current		127.3			34.2			69.9
Deferred:
Federal		4.7			37.7			24.6
State		(0.7	)		3.1			4.3
Foreign		(2.3	)		0.1			(0.7	)
Total deferred		1.7			40.9			28.2
Income tax provision	$	129.0		$	75.1		$	98.1

Reconciliation of income tax computed at United States federal statutory rate to reported income tax expense

	Year Ended March 31,
	2012						2011						2010
	Amount			Percent			Amount			Percent			Amount			Percent
Expense computed at United States statutory rate	$	185.5			35.0	%	$	186.0			35.0	%	$	176.5			35.0	%
Effect of foreign rate differentials		(40.6	)		(7.7	)%		(54.6	)		(10.3	)%		(29.7	)		(5.9	)%
Extraterritorial income and production activities		(25.7	)		(4.8	)%		(24.7	)		(4.6	)%		(21.5	)		(4.3	)%
deductions
State income taxes, net of federal benefit		6.8			1.3	%		8.7			1.6	%		3.1			0.6	%
Settlements with tax authorities		(6.2	)		(1.2	)%		(57.2	)		(10.8	)%		(30.0	)		(5.9	)%
Other, net		9.2			1.7	%		16.9			3.2	%		(0.3	)		0.0	%
	$	129.0			24.3	%	$	75.1			14.1	%	$	98.1			19.5	%

Significant components of deferred tax assets and liabilities

	March 31,
	2012			2011
	(In millions)
Deferred tax assets:
Deferred revenue	$	66.5		$	53.7
Compensation plans		47.0			46.5
Property and equipment, net		4.0			4.6
Net operating loss carryforwards		52.8			36.0
Tax credit carryforwards		10.0			6.2
Other		65.7			77.1
Total gross deferred tax assets		246.0			224.1
Valuation allowance		(20.5	)		(10.1	)
Total deferred tax assets		225.5			214.0
Deferred tax liabilities:
Software development costs		(88.2	)		(70.7	)
Acquired intangible assets		(95.0	)		(13.5	)
Other		(55.0	)		(59.4	)
Total deferred tax liabilities		(238.2	)		(143.6	)
Net deferred tax assets (liabilities)	$	(12.7	)	$	70.4
As reported:
Current deferred tax assets	$	71.0		$	65.1
Other long-term assets	$	22.7		$	29.3
Accrued liabilities	$	(0.4	)	$	(3.7	)
Other long-term liabilities	$	(106.0	)	$	(20.3	)

Unrecognized tax benefits (excluding interest and penalties)

	Year Ended March 31,
	2012			2011			2010
				(In millions)
Beginning of year	$	55.8		$	106.4		$	106.3
Increases related to current year tax positions		3.1			6.6			6.0
Increases related to prior year tax positions		8.8			20.8			21.0
Decreases related to prior year tax positions		(8.1	)		(58.9	)		(22.7	)
Decreases related to lapses of statutes of limitations		(2.6	)		(19.0	)		(3.9	)
Impact of foreign currency exchange rate changes		(0.2	)		(0.1	)		(0.3	)
End of year	$	56.8		$	55.8		$	106.4