Stock-based Compensation (Tables)

6 Months Ended

Oct. 01, 2011

Stock-based Compensation [Abstract]

Summary of the total compensation expense recorded within SG&A expenses and the associated income tax benefits recognized related to stock-based compensation arrangements

	Three Months Ended						Six Months Ended
	October 1,			October 2,			October 1,			October 2,
	2011			2010			2011			2010
	(millions)
Compensation expense	$	16.1		$	15.3		$	34.0		$	30.8
Income tax benefit	$	(5.5	)	$	(5.5	)	$	(11.9	)	$	(11.3	)

Weighted-average assumptions used to estimate the fair value of stock options granted

	Six Months Ended
	October 1,			October 2,
	2011			2010
Expected term (years)		4.7			4.6
Expected volatility		44.7	%		44.2	%
Expected dividend yield		0.73	%		0.51	%
Risk-free interest rate		1.3	%		1.6	%
Weighted-average option grant date fair value	$	49.06		$	27.86

Summary of the stock option activity under all plans

	Number of
	Shares
	(thousands)
Options outstanding at April 2, 2011		3,804
Granted		539
Exercised		(514	)
Cancelled/Forfeited		(74	)
Options outstanding at October 1, 2011		3,755

Summary of the restricted stock and RSU activity

			Service-			Performance-
	Restricted Stock		based RSUs			based RSUs
	Number of		Number of			Number of
	Shares		Shares			Shares
			(thousands)
Nonvested at April 2, 2011		8		342			1,416
Granted		—		—			461
Vested		—		(120	)		(468	)
Cancelled		—		—			(44	)
Nonvested at October 1, 2011		8		222			1,365