Contingencies (Antitrust Litigation and Shareholder Class Action and Shareholder Derivative Lawsuits) (Details) $ in Millions	1 Months Ended		12 Months Ended
	May 31, 2023 USD ($)	Apr. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Oct. 28, 2024 lawsuit	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Nov. 30, 2020 complaint
Loss Contingencies [Line Items]
Loss contingency, number of complaints | complaint											3
Pre-tax charge			$ 71		$ 136	$ 151	$ 346	$ 373	$ 381
Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss contingency, class action lawsuit | lawsuit				17
Federal And State Shareholder Derivative Lawsuits [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision			$ 27
Loss contingency, settlement funding amount	$ 100
Loss contingency, settlement funding period	5 years
Pre-tax charge										$ 100
Judgments paid		$ 15