Long-term Debt (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Long-term Debt

The components of long-term debt, including the effects of issuance costs and issuance discounts, are as follows:

	As of September 30, 2021		As of December 31, 2020
	(in millions)
Outstanding debt principal balances:
3.450% senior notes due 2021	$	—	$	140
3.950% senior notes due 2022	244		244
0.550% senior notes due 2023	750		—
0.750% senior callable notes due 2024	750		—
0.250% convertible senior notes due 2025	1,323		1,323
1.125% senior notes due 2026	750		—
4.450% senior notes due 2026	500		500
5.625% senior notes due 2027	179		—
7.200% senior notes due 2028	241		241
4.125% senior notes due 2028	138		—
1.900% senior notes due 2030	1,100		1,100
2.150% senior notes due 2031	1,000		—
	6,975		3,548
Issuance costs and discounts, net	(46)		(248)
Total debt	6,929		3,300
Less current portion of long-term debt	244		140
Long-term debt	$	6,685	$	3,160

The interest costs recognized on the Convertible Notes, are as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(in millions)
Contractual coupon interest	$	1	$	1	$	3	$	1
Amortization of debt discount and issuance costs	1		12		3		19
	$	2	$	13	$	6	$	20