Share Repurchase Authorization Share Repurchase Authorization (Tables)

12 Months Ended

Dec. 27, 2016

Equity, Class of Treasury Stock [Line Items]

Schedule of Repurchase Agreements [Table Text Block]

	For the fiscal year ended
	December 27, 2016		December 29, 2015		December 30, 2014
2016 Repurchase Authorization
Shares repurchased	975,673
Average price per share		$207.31
Aggregate purchase price (in millions)		$202.3
2014 Repurchase Authorization
Shares repurchased	839,759		2,201,719		427,521
Average price per share		$201.15		$181.65		$155.78
Aggregate purchase price (in millions)		$168.9		$399.9		$66.6
2012 Repurchase Authorization
Shares repurchased					514,357
Average price per share						$170.15
Aggregate purchase price (in millions)						$87.5
Total
Shares repurchased	1,815,432		2,201,719		941,878
Average price per share		$204.46		$181.65		$163.62
Aggregate purchase price (in millions)		$371.2		$399.9		$154.1