Restructuring and Other Charges - Summary of 2015 Restructuring Impact on the Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Mar. 31, 2017	Dec. 30, 2016	Apr. 01, 2016	Mar. 31, 2017	Apr. 01, 2016
Restructuring Charges [Line Items]
Restructuring Charges	$ 52,266	$ 31,741	$ 35,368	$ 84,007	$ 103,751
Operating Segments | Aerospace & Technology
Restructuring Charges [Line Items]
Restructuring Charges	834		239	1,004	2,435
Operating Segments | Buildings & Infrastructure
Restructuring Charges [Line Items]
Restructuring Charges	8,315		601	16,223	15,567
Operating Segments | Industrial
Restructuring Charges [Line Items]
Restructuring Charges	6,964		2,316	9,488	19,893
Operating Segments | Petroleum & Chemicals
Restructuring Charges [Line Items]
Restructuring Charges	15,791		29,039	29,375	53,015
Corporate Non-Segment
Restructuring Charges [Line Items]
Restructuring Charges	$ 20,362		$ 3,173	$ 27,917	$ 12,841