Financial Instruments (Tables)

6 Months Ended

Jul. 02, 2017

Financial Instruments (Thousands of Dollars) [Abstract]

Schedule of Long-term Debt Instruments

	July 2, 2017				June 26, 2016				December 25, 2016
	Carrying		Fair		Carrying		Fair		Carrying		Fair
	Cost		Value		Cost		Value		Cost		Value
6.35% Notes Due 2040	$	500,000		614,800		500,000		608,600		500,000		584,850
6.30% Notes Due 2017		350,000		353,115		350,000		370,125		350,000		361,900
5.10% Notes Due 2044		300,000		325,500		300,000		317,490		300,000		297,600
3.15% Notes Due 2021		300,000		307,230		300,000		308,640		300,000		300,450
6.60% Debentures Due 2028		109,895		127,940		109,895		133,006		109,895		123,984
Total long-term debt	$	1,559,895		1,728,585		1,559,895		1,737,861		1,559,895		1,668,784
Less: Current portion		350,000		353,115		-		-		350,000		361,900
Less: Deferred debt expenses		10,781		-		12,142		-		11,216		-
Long-term debt	$	1,199,114		1,375,470		1,547,753		1,737,861		1,198,679		1,306,884