Divestiture and Held for Sale - Narrative (Details) - USD ($)			3 Months Ended	12 Months Ended
	Aug. 10, 2020	Oct. 30, 2019	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Feb. 03, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets impairment charge				$ 0		$ 0
Proceeds from divestitures				0	$ 198,000,000	0
Gain on disposal				$ 0	(91,000,000)	$ 0
Disposal Group, Held-for-sale, Not Discontinued Operations | VBS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets impairment charge					$ 144,000,000
Aggregate purchase price	$ 1
Proceeds from divestitures	$ 22,000,000
Gain on disposal			$ 0
Disposal Group, Held-for-sale, Not Discontinued Operations | VBNS
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate purchase price							$ 176,000,000
Gain on disposal		$ 175,000,000
Gain on disposal, net of closing costs		$ 77,000,000