Accounting Policies Cloud Computing (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Hosting Arrangement, Service Contract, Implementation Cost, Expense, Amortization	$ 11	$ 6	$ 2
Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, after Accumulated Amortization	$ 16	$ 24

Amount, after accumulated amortization, of capitalized implementation cost from hosting arrangement that is service contract.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-SubTopic 40
-Topic 350
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476168/350-40-50-3

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