Debt (Tables)

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

Schedule of Debt

A summary of short-term and long-term debt outstanding is as follows:

(in millions)	September 30, 2019		December 31, 2018
3.3% Senior Notes, due 2020 1	699		698
4.0% Senior Notes, due 2025 2	694		693
4.4% Senior Notes, due 2026 3	893		892
2.95% Senior Notes, due 2027 4	493		493
6.55% Senior Notes, due 2037 5	396		396
4.5% Senior Notes, due 2048 6	490		490
Total debt	3,665		3,662
Less: short-term debt including current maturities	699		—
Long-term debt	$	2,966	$	3,662

¹  Interest payments are due semiannually on February 14 and August 14, and as of September 30, 2019, the unamortized debt discount and issuance costs total $1 million.

²  Interest payments are due semiannually on June 15 and December 15, and as of September 30, 2019, the unamortized debt discount and issuance costs total $6 million.

³  Interest payments are due semiannually on February 15 and August 15, and as of September 30, 2019, the unamortized debt discount and issuance costs total $7 million.

⁴  Interest payments are due semiannually on January 22 and July 22, and as of September 30, 2019, the unamortized debt discount and issuance costs total $7 million.

⁵  Interest payments are due semiannually on May 15 and November 15, and as of September 30, 2019, the unamortized debt discount and issuance costs total $4 million.

⁶  Interest payments are due semiannually on May 15 and November 15, beginning on November 15, 2018, and as of September 30, 2019, the unamortized debt discount and issuance costs total $10 million.