Subsequent Events (Tables)

3 Months Ended

Mar. 31, 2019

Subsequent Events [Abstract]

Schedule of private exchange offer for outstanding senior unsecured notes

On April 3, 2019, we issued at par approximately $919 million of 8.00% Senior Notes due 2026 (“2026 notes”) pursuant to a private exchange offer for the following outstanding senior unsecured notes:

	Amount of Notes Exchanged
	($ in millions)
6.625% senior notes due 2020	$	229
6.875% senior notes due 2020	134
6.125% senior notes due 2021	381
5.375% senior notes due 2021	140
Total	$	884