Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt at December 31, 2015 and 2014 consisted of the following (in thousands):

	2015		2014
Commercial Paper	$	259,718	$	—
2.95% Senior Notes due 2015	—		500,000
2.500% Senior Notes due 2016	400,000		400,000
5.875% Senior Notes due 2017	600,000		600,000
6.875% Senior Notes due 2018	350,000		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		—
6.65% Senior Notes due 2028	140,000		140,000
3.90% Senior Notes due 2035	500,000		—
Long-Term Debt	6,649,718		5,890,000
Capital Lease Obligation	45,064		51,221
Less: Current Portion of Long-Term Debt	6,579		6,579
Unamortized Debt Discount	34,518		31,288
Total Long-Term Debt	$	6,653,685	$	5,903,354