Related Party Transactions - Schedule of Condensed Combined Statement of Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Nov. 02, 2021
Related Party Transactions [Abstract]
Allocated operating expenses	$ 53	$ 45	$ 18
Major maintenance costs	8	6	0
Insurance expense	20	20	18
Other	43	43	23
Operations and maintenance – related parties	124	114	59
Allocated general corporate expenses	25	29	28
Management Agreement fee	10	9	9
Omnibus Agreement fee	10	11	11
Other	0	0	1
General and administrative – related parties	$ 45	$ 49	$ 49
Insurance coverage percentage (in percent)				5.00%