Long-Term Debt and Revolving Credit Arrangements (Tables)

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

Schedule of Components of Debt

Components of debt, including the associated effective interest rates were as follows (in millions, except for percentages):

	As of
	December 31, 2018			September 30, 2019			Effective Interest Rate
2016 Senior Secured Term Loan	$	1,124		$	1,116		6.1	%
2018 Senior Secured Term Loan	1,493			1,481			6.2	%
2021 Convertible Notes	1,844			—			23.5	%
2022 Convertible Notes	1,030			—			13.7	%
2023 Senior Note	500			500			7.7	%
2026 Senior Note	1,500			1,500			8.1	%
2027 Senior Note	—			1,200			7.7	%
Total debt	7,491			5,797
Less: unamortized discount and issuance costs	(595		)	(59		)
Less: current portion of long-term debt	(27		)	(27		)
Total long-term debt	$	6,869		$	5,711

Schedule of Debt Expense

The following table presents the amount of interest expense recognized relating to the contractual interest coupon, amortization of the debt discount and issuance costs, and the IRR payout with respect to the Senior Secured Term Loan, the Convertible Notes, and the Senior Notes for the three and nine months ended September 30, 2018 and 2019 (in millions):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2018		2019		2018		2019
Contractual interest coupon	$	59	$	83	$	148	$	338
Amortization of debt discount and issuance costs	82		2		231		80
8% IRR payout	16		—		45		26
Total interest expense from long-term debt	$	157	$	85	$	424	$	444