Debt (Tables)

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Consolidated Debt

Long-term debt at December 31, 2019 and September 30, 2020 was as follows (in thousands):

	December 31, 2019		September 30, 2020
Commercial paper	$	—	$	248,000
4.25% Notes due 2021	550,000		—
3.20% Notes due 2025	250,000		250,000
5.00% Notes due 2026	650,000		650,000
3.25% Notes due 2030	—		500,000
6.40% Notes due 2037	250,000		250,000
4.20% Notes due 2042	250,000		250,000
5.15% Notes due 2043	550,000		550,000
4.20% Notes due 2045	250,000		250,000
4.25% Notes due 2046	500,000		500,000
4.20% Notes due 2047	500,000		500,000
4.85% Notes due 2049	500,000		500,000
3.95% Notes due 2050	500,000		500,000
Face value of long-term debt	4,750,000		4,948,000
Unamortized debt issuance costs(1)	(35,263)		(37,407)
Net unamortized debt discount(1)	(8,662)		(10,282)
Long-term debt, net	$	4,706,075	$	4,900,311

(1)        Debt issuance costs, note discounts and premiums and realized gains and losses of historical fair value hedges are being amortized or accreted to the applicable notes over the respective lives of those notes.