Debt (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Consolidated Debt

onsolidated debt at December 31, 2015 and September 30, 2016 was as follows (in thousands, except as otherwise noted):

	December 31, 2015		September 30, 2016		Weighted-Average Interest Rate for the Nine Months Ended September 30, 2016 (1)
Commercial paper(2)	$	279,801	$	34,880	0.8%
$250.0 million of 5.65% Notes due 2016(3)	250,208		250,020		5.7%
$250.0 million of 6.40% Notes due 2018	254,694		253,298		5.5%
$550.0 million of 6.55% Notes due 2019	562,600		560,042		5.7%
$550.0 million of 4.25% Notes due 2021	553,002		552,620		4.1%
$250.0 million of 3.20% Notes due 2025	247,788		247,967		3.2%
$650.0 million of 5.00% Notes due 2026(2)	—		644,129		5.1%
$250.0 million of 6.40% Notes due 2037	247,230		247,312		6.4%
$250.0 million of 4.20% Notes due 2042	246,142		246,230		4.3%
$550.0 million of 5.15% Notes due 2043	550,819		550,885		5.1%
$250.0 million of 4.20% Notes due 2045	247,338		247,408		4.7%
$500.0 million of 4.25% Notes due 2046(2)	—		488,731		4.8%
Total debt	3,439,622		4,323,522		4.9%
Less: current portion of long-term debt, net	250,335		250,020
Long-term debt, net(4)	$	3,189,287	$	4,073,502

(1) Weighted-average interest rate includes the amortization/accretion of discounts, premiums and gains/losses realized on historical cash flow and fair value hedges recognized as interest expense.

(2) These borrowings were outstanding for only a portion of the nine-month period ending September 30, 2016. The weighted-average interest rate for these borrowings was calculated based on the number of days the borrowings were outstanding during the noted period.

(3) These borrowings will mature in October 2016 and are reflected in current debt on our consolidated balance sheets at December 31, 2015 and September 30, 2016.

(4) Long-term debt is presented net of unamortized debt issuance costs of $18.7 million and $27.4 million at December 31, 2015 and September 30, 2016, respectively.