Debt

12 Months Ended

Dec. 31, 2019

DEBT

Debt consisted of the following:



December 31		2019		2018
Fixed-rate notes due:	Interest rate:
May 2020	2.875%	$	2,000	$	2,000
May 2021	3.000%	2,000		2,000
July 2021	3.875%	500		500
November 2022	2.250%	1,000		1,000
May 2023	3.375%	750		750
August 2023	1.875%	500		500
November 2024	2.375%	500		500
May 2025	3.500%	750		750
August 2026	2.125%	500		500
November 2027	2.625%	500		500
May 2028	3.750%	1,000		1,000
November 2042	3.600%	500		500
Floating-rate notes due:
May 2020	3-month LIBOR + 0.29%	500		500
May 2021	3-month LIBOR + 0.38%	500		500
Commercial paper	2.568% at December 31, 2018	—		850
Other	Various	505		168
Total debt principal		12,005		12,518
Less unamortized debt issuance costs and discounts		75		101
Total debt		11,930		12,417
Less current portion		2,920		973
Long-term debt		$	9,010	$	11,444

Interest payments associated with our debt were $434 in 2019, $312 in 2018 and $93 in 2017.

Our fixed- and floating-rate notes are fully and unconditionally guaranteed by several of our 100%-owned subsidiaries. See Note T for condensed consolidating financial statements. We have the option to redeem the fixed-rate notes prior to their maturity in whole or in part for the principal plus any accrued but unpaid interest and applicable make-whole amounts.

The aggregate amounts of scheduled principal maturities of our debt are as follows:



Year Ended December 31	Debt Principal
2020	$	2,922
2021	3,009
2022	1,009
2023	1,255
2024	505
Thereafter	3,305
Total debt principal	$	12,005

On December 31, 2019, we had no commercial paper outstanding, but we maintain the ability to access the commercial paper market in the future. We have $5 billion in committed bank credit facilities for general corporate purposes and working capital needs and to support our commercial paper issuances. These credit facilities include a $2 billion 364-day facility expiring in March 2020, a $1 billion multi-year facility expiring in November 2020 and a $2 billion multi-year facility expiring in March 2023. We may renew or replace these credit facilities in whole or in part at or prior to their expiration dates. Our credit facilities are guaranteed by several of our 100%-owned subsidiaries. We also have an effective shelf registration on file with the Securities and Exchange Commission that allows us to access the debt markets.

Our financing arrangements contain a number of customary covenants and restrictions. We were in compliance with all covenants and restrictions on December 31, 2019.