Debt and Lines of Credit

12 Months Ended

Dec. 31, 2019

Short-term borrowings

We maintain a line of credit to support commercial paper borrowings, if any, and to provide additional liquidity through bank loans. As of December 31, 2019, we had a variable-rate revolving credit facility from a consortium of investment-grade banks that allows us to borrow up to $2 billion until March 2024. The interest rate on borrowings under this credit facility, if drawn, is indexed to the applicable London Interbank Offered Rate (LIBOR). As of December 31, 2019, our credit facility was undrawn, and we had no commercial paper outstanding.

Long-term debt

We retired $750 million of maturing debt in August 2019.

In March 2019, we issued a principal amount of $750 million of fixed-rate, long-term debt due in 2039. We incurred $7 million of issuance and other related costs. The proceeds of the offering were $743 million, net of the original issuance discount, and were used for general corporate purposes.

In September 2019, we issued a principal amount of $750 million of fixed-rate, long-term debt due in 2029. We incurred $5 million of issuance and other related costs. The proceeds of the offering were $748 million, net of the original issuance discount, and were used for general corporate purposes.

We retired $500 million of maturing debt in May 2018.

In the second quarter of 2018, we issued an aggregate principal amount of $1.5 billion of fixed-rate, long-term debt due in 2048, comprised of the issuance of $1.3 billion in May 2018 and an additional $200 million in June 2018. We incurred $16 million of issuance and other related costs. The proceeds of the offering were $1.5 billion, net of the original issuance discount and premium, and were used for general corporate purposes.

We retired $250 million of maturing debt in March 2017 and another $375 million in June 2017.

In May 2017, we issued an aggregate principal amount of $600 million of fixed-rate, long-term debt. The offering consisted of the reissuance of $300 million of 2.75% notes due in 2021 at a premium and the issuance of $300 million of 2.625% notes due in 2024 at a discount. We incurred $3 million of issuance and other related costs. The proceeds of the offerings were $605 million, net of the original issuance discount and premium, and were used for the repayment of maturing debt and general corporate purposes.

In November 2017, we issued a principal amount of $500 million of fixed-rate, long-term debt due in 2027. We incurred $3 million of issuance and other related costs. The proceeds of the offering were $494 million, net of the original issuance discount, and were used for general corporate purposes.

Long-term debt outstanding is as follows:


	December 31,
	2019		2018
Notes due 2019 at 1.65%	$	—	$	750
Notes due 2020 at 1.75%	500		500
Notes due 2021 at 2.75%	550		550
Notes due 2022 at 1.85%	500		500
Notes due 2023 at 2.25%	500		500
Notes due 2024 at 2.625%	300		300
Notes due 2027 at 2.90%	500		500
Notes due 2029 at 2.25%	750		—
Notes due 2039 at 3.875%	750		—
Notes due 2048 at 4.15%	1,500		1,500
Total debt	5,850		5,100
Net unamortized discounts, premiums and issuance costs	(47)		(32)
Total debt, including net unamortized discounts, premiums and issuance costs	5,803		5,068
Current portion of long-term debt	(500)		(749)
Long-term debt	$	5,303	$	4,319

Interest and debt expense was $170 million, $125 million and $78 million in 2019, 2018 and 2017, respectively. This was net of the amortized discounts, premiums and issuance costs. Cash payments for interest on long-term debt were $156 million, $114 million and $75 million in 2019, 2018 and 2017, respectively. Capitalized interest was not material.