Segment Information (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) Segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting [Abstract]
Number of segments | Segment	6
Segment Reporting Information [Line Items]
Total Assets	$ 677,457	$ 687,584
Total revenues	70,986	$ 66,905	$ 68,770
One.U.S.Customer | RIS
Segment Reporting Information [Line Items]
Total revenues	$ 8,100
Revenue Benchmark | Customer Concentration Risk | One.U.S.Customer | RIS
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	14.00%
Customer Concentration Risk
Segment Reporting Information [Line Items]
Concentration Risk, Benchmark Description	10	10