Diamond Acquisition - Schedule of Acquisition Pro Forma Information (Details) - USD ($) $ in Millions	2 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues	$ 245	$ 928	$ 208	$ 1,497	$ 682
Net income (loss)	$ 30
Diamond Acquisition [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Revenues		2,321		1,431
Net income (loss)		$ 173		$ (307)