Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Summary of debt

A summary of our debt is as follows (amounts in millions):

	December 31, 2016
	Gross Carrying Amount		Unamortized Discount and Deferred Financing Costs			Net Carrying Amount
2016 TLA	$	2,690	$	(27	)	$	2,663
New 2021 Notes	650		(5		)	645
2023 Notes	750		(11		)	739
2026 Notes	850		(10		)	840
Total long-term debt	$	4,940	$	(53	)	$	4,887

	December 31, 2015
	Gross Carrying Amount		Unamortized Discount and Deferred Financing Costs			Net Carrying Amount
Original Term Loan	$	1,869	$	(11	)	$	1,858
Original 2021 Notes	1,500		(22		)	1,478
2023 Notes	750		(12		)	738
Total long-term debt	$	4,119	$	(45	)	$	4,074

Schedule of maturities of debt

As of December 31, 2016, without consideration to the voluntary prepayments made in February 2017, as discussed above, the scheduled maturities and contractual principal repayments of our debt for each of the five succeeding years are as follows (amounts in millions):

For the year ending December 31,
2017	$	—
2018	—
2019	103
2020	252
2021	2,985
Thereafter	1,600
Total	$	4,940