Share Based Compensation - Stock-Based Awards (Details) $ in Millions	Dec. 31, 2021 USD ($)
Stock-Based Compensation Details [Line Items]
Aggregate intrinsic value of award outstanding, options	$ 0
Restricted Stock Units (RSUs)
Stock-Based Compensation Details [Line Items]
Aggregate intrinsic value of award outstanding	72
Performance Shares
Stock-Based Compensation Details [Line Items]
Aggregate intrinsic value of award outstanding	$ 64

Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant