Our long-term debt consisted of the following (in millions):


	December 31,
	2016		2015
Notes
2.13% and 7.65% due 2016	$	—	$	952
1.85% due 2018		750		750
4.25% due 2019		900		900
2.50% due 2020		1,250		1,250
3.35% due 2021		900		900
3.10% due 2023		500		500
2.90% due 2025		750		750
3.55% due 2026		2,000		2,000
3.60% due 2035		500		500
4.50% and 6.15% due 2036		1,152		1,152
4.85% due 2041		600		600
4.07% due 2042		1,336		1,336
3.80% due 2045		1,000		1,000
4.70% due 2046		2,000		2,000
Other notes with rates from 5.50% to 8.50%, due 2023 to 2040		1,656		1,706
Total debt		15,294		16,296
Less: unamortized discounts and issuance costs		(1,012)		(1,035)
Total debt, net		14,282		15,261
Less: current portion		—		(956)
Long-term debt, net	$	14,282	$	14,305