Casualty, Environmental and Other Reserves - Narrative (Details)	3 Months Ended								12 Months Ended
	Dec. 30, 2016 USD ($) claim site $ / shares	Sep. 23, 2016 $ / shares	Jun. 24, 2016 $ / shares	Mar. 25, 2016 $ / shares	Dec. 25, 2015 USD ($) $ / shares	Sep. 25, 2015 $ / shares	Jun. 26, 2015 $ / shares	Mar. 27, 2015 $ / shares	Dec. 30, 2016 USD ($) claim site $ / shares	Dec. 25, 2015 USD ($) $ / shares	Dec. 26, 2014 USD ($) $ / shares	Dec. 27, 2013 USD ($)
Loss Contingencies [Line Items]
Net Earnings Per Share, Basic (in dollars per share) | $ / shares	$ 0.49	$ 0.48	$ 0.47	$ 0.37	$ 0.48	$ 0.52	$ 0.56	$ 0.45	$ 1.81	$ 2.00	$ 1.93
Casualty Reserves
Loss Contingencies [Line Items]
Reserves	$ 229,000,000				$ 269,000,000				$ 229,000,000	$ 269,000,000	$ 265,000,000	$ 280,000,000
Self-insured retention amount per injury									$ 50,000,000
Individual claims expected to exceed self-insured retention amount | claim	0								0
Change in Estimate									$ (28,000,000)
Earnings from continuing operations									$ 18,000,000
Net Earnings Per Share, Basic (in dollars per share) | $ / shares									$ 0.02
Change in estimate recorded to adjust reserves										0	0
Environmental
Loss Contingencies [Line Items]
Reserves	$ 95,000,000				82,000,000				$ 95,000,000	82,000,000	94,000,000	100,000,000
Change in Estimate									$ 0
Environmental impaired site | site	222								222
Other Reserves
Loss Contingencies [Line Items]
Reserves	$ 50,000,000				$ 49,000,000				$ 50,000,000	$ 49,000,000	$ 59,000,000	$ 71,000,000
Change in Estimate									$ 0
Minimum | Asbestos
Loss Contingencies [Line Items]
Loss contingency, latency period (in years)									10 years
Maximum | Asbestos
Loss Contingencies [Line Items]
Loss contingency, latency period (in years)									40 years