Reconciliation of Net Earnings Attributable to Common Shareowners and Weighted-Average Shares Outstanding used to Calculate Basic and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Numerator
Net Earnings Attributable to Common Shareowners	$ 169.9	$ 170.6
Denominator:
Basic earnings per share - weighted-average shares	147,863	150,612
Weighted Average Number Diluted Shares Outstanding Adjustment	2,045	3,293
Diluted earnings per share - weighted-average shares	149,908	153,905
Basic earnings per share of common stock:
Total basic earnings per share of common stock	$ 1.15	$ 1.13
Diluted earnings per share of common stock:
Total dilutive earnings per share of common stock	$ 1.13	$ 1.11