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Pension Plans - Summary of Change in Fair Value of Plan Assets (Detail) - USD ($)
$ in Millions
12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Compensation and Retirement Disclosure [Abstract]    
Fair value of plan assets at beginning of year $ 1,103.4 $ 1,015.4
Actual return (loss) on plan assets (17.8) 112.9
Plan participant contributions 1.1 1.2
Employer contributions 39.2 44.8
Benefits paid (62.4) (59.2)
Foreign currency impact (14.3) (11.7)
Fair value of plan assets at end of year 1,049.2 1,103.4
Unfunded status at end of year $ (230.2) $ (222.5)