SHORT AND LONG-TERM DEBT (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long-term debt consisted of the following:

December 31,	2016			2015
5.45% Notes due 2016	$	—		$	250,000
1.50% Notes due 2016	—			250,000
1.60% Notes due 2018	300,000			300,000
4.125% Notes due 2020	350,000			350,000
8.8% Debentures due 2021	84,715			84,715
2.625% Notes due 2023	250,000			250,000
3.20% Notes due 2025	300,000			300,000
2.30% Notes due 2026	500,000			—
7.2% Debentures due 2027	193,639			193,639
3.375% Notes due 2046	300,000			—
Lease obligations	83,619			82,747
Net impact of interest rate swaps, debt issuance costs and unamortized debt discounts	(14,275		)	(4,087		)
Total long-term debt	2,347,698			2,057,014
Less—current portion	243			499,923
Long-term portion	$	2,347,455		$	1,557,091

Schedule of Maturities of Long-term Debt

Aggregate annual maturities of long-term debt are as follows for the years ending December 31:

2017	$	243
2018	300,279
2019	367
2020	350,462
2021	85,279
Thereafter	1,611,068

Schedule Of Net Interest Expense

Net interest expense consisted of the following:

For the years ended December 31,	2016			2015			2014
Interest expense	$	97,851		$	93,520		$	93,777
Capitalized interest	(5,903		)	(12,537		)	(6,179		)
Loss on extinguishment of debt	—			28,326			—
Interest expense	91,948			109,309			87,598
Interest income	(1,805		)	(3,536		)	(4,066		)
Interest expense, net	$	90,143		$	105,773		$	83,532