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Receivables - Rollforward of Allowances for Doubtful Accounts for Finance and Contract Receivables (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Receivables [Abstract]      
Finance receivables, Allowance for doubtful accounts, Beginning of year $ 38.2 $ 32.7  
Finance receivables, Provision 44.0 31.6 $ 27.4
Finance receivables, Charge-offs (39.8) (31.7)  
Finance receivables, Recoveries 6.2 5.9  
Finance receivables, Currency translation   (0.3)  
Finance receivables, Allowance for doubtful accounts,End of year 48.6 38.2 32.7
Contract receivables, Allowance for doubtful accounts, Beginning of year 4.4 3.5  
Contract receivables, Provision 1.0 2.5  
Contract receivables, Charge-offs (1.8) (1.9)  
Contract receivables, Recoveries 0.4 0.4  
Contract receivables, Currency translation (0.1) (0.1)  
Contract receivables, Allowance for doubtful accounts, End of year $ 3.9 $ 4.4 $ 3.5