Financial Instruments (Tables)

9 Months Ended

Sep. 27, 2015

Financial Instruments (Thousands of Dollars) [Abstract]

Schedule of Long-term Debt Instruments

The Company's financial instruments include cash and cash equivalents, accounts receivable, short-term borrowings, accounts payable and certain accrued liabilities. At September 27, 2015, September 28, 2014 and December 28, 2014, the carrying cost of these instruments approximated their fair value. The Company's financial instruments at September 27, 2015, September 28, 2014 and December 28, 2014 also include certain assets and liabilities measured at fair value (see Notes 6 and 8) as well as long-term borrowings. The carrying costs of the long-term borrowings are equal to the outstanding principal amounts, and fair values of the Company's long-term borrowings as of September 27, 2015, September 28, 2014 and December 28, 2014 are as follows:

	September 27, 2015				September 28, 2014				December 28, 2014
	Carrying Cost		Fair Value		Carrying Cost		Fair Value		Carrying Cost		Fair Value
6.35% Notes Due 2040	$	500,000		563,400		500,000		602,050		500,000		617,700
6.30% Notes Due 2017		350,000		379,925		350,000		392,595		350,000		387,660
5.10% Notes Due 2044		300,000		291,900		300,000		310,500		300,000		316,980
3.15% Notes Due 2021		300,000		303,990		300,000		302,130		300,000		302,700
6.60% Debentures Due 2028		109,895		123,225		109,895		125,764		109,895		128,698
Total long-term debt	$	1,559,895		1,662,440		1,559,895		1,733,039		1,559,895		1,753,738