Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt at December 31, 2018 and 2017 consisted of the following (in thousands):

	2018		2017
6.875% Senior Notes due 2018	$	—	$	350,000
5.625% Senior Notes due 2019	900,000		900,000
4.40% Senior Notes due 2020	500,000		500,000
2.45% Senior Notes due 2020	500,000		500,000
4.100% Senior Notes due 2021	750,000		750,000
2.625% Senior Notes due 2023	1,250,000		1,250,000
3.15% Senior Notes due 2025	500,000		500,000
4.15% Senior Notes due 2026	750,000		750,000
6.65% Senior Notes due 2028	140,000		140,000
3.90% Senior Notes due 2035	500,000		500,000
5.10% Senior Notes due 2036	250,000		250,000
Long-Term Debt	6,040,000		6,390,000
Capital Lease Obligation	71,571		32,155
Less: Current Portion of Long-Term Debt	913,093		356,235
Unamortized Debt Discount	24,640		30,564
Debt Issuance Costs	3,669		4,520
Total Long-Term Debt	$	5,170,169	$	6,030,836