Debt (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of Total Debt

Our total debt, including short-term and long-term debt, consisted of the following (in millions):

	As of December 31,
	2019		2018
Debt:
Short-term debt:
Commercial Paper	$	1,311	$	951
2020 Senior Notes (2.75% senior unsecured notes due December 1, 2020)	1,248		—
Other short-term debt	10		—
Total short-term debt	2,569		951
Long-term debt:
2020 Senior Notes (2.75% senior unsecured notes due December 1, 2020)	—		1,246
2022 Senior Notes (2.35% senior unsecured notes due September 15, 2022)	497		496
2023 Senior Notes (3.45% senior unsecured notes due September 21, 2023)	398		397
2023 Senior Notes (4.00% senior unsecured notes due October 15, 2023)	794		793
2025 Senior Notes (3.75% senior unsecured notes due December 1, 2025)	1,244		1,243
2027 Senior Notes (3.10% senior unsecured notes due September 15, 2027)	496		496
2028 Senior Notes (3.75% senior unsecured notes due September 21, 2028)	592		591
2048 Senior Notes (4.25% senior unsecured notes due September 21, 2048)	1,229		1,228
Total long-term debt	5,250		6,490
Total debt	$	7,819	$	7,441

Debt Repayment Schedule

As of December 31, 2019, the outstanding debt repayment schedule is as follows (in millions):

2020	$	2,574
2021	—
2022	500
2023	1,200
2024	—
Thereafter	3,600
Principal amounts repayable	7,874
Debt issuance costs	(35		)
Unamortized balance discounts on bonds, net	(20		)
Total debt outstanding	$	7,819