Reconciliation of Net Earnings Attributable to Common Shareholders and Weighted Average Shares Outstanding used to Calculate Basic and Diluted Earnings per Share (Detail) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Numerator
Net earnings from continuing operations attributable to common shareowners	$ 691.3	$ 202.1	$ 225.6
Net loss from discontinued operations	(16.7)	(3.9)	(1.3)
Net earnings attributable to common shareowners	674.6	198.2	224.3
Less: Earnings attributable to participating restricted stock units ("RSU's")	1.4	0.5	0.3
Net Earnings - basic	673.2	197.7	224.0
Net Earnings - diluted	$ 674.6	$ 198.2	$ 224.3
Denominator
Basic earnings per share -- weighted-average shares	165,832	147,224	79,788
Dilutive effect of stock options and awards	4,273	2,943	608
Diluted earnings per share -- weighted-average shares	170,105	150,167	80,396
Basic earnings per share of common stock:
Continuing operations	$ 4.16	$ 1.37	$ 2.82
Discontinued operations	$ (0.10)	$ (0.03)	$ (0.01)
Total basic earnings per share of common stock	$ 4.06	$ 1.34	$ 2.81
Diluted earnings per share of common stock:
Continuing operations	$ 4.06	$ 1.35	$ 2.81
Discontinued operations	$ (0.10)	$ (0.03)	$ (0.01)
Total dilutive earnings per share of common stock	$ 3.97	$ 1.32	$ 2.79