Segments - Revenue Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Information
Revenue	$ 17,162	$ 16,977	$ 33,079	$ 31,519
Operating Segments
Segment Information
Revenue	17,110	17,009	32,979	31,489
Other
Segment Information
Other revenue	$ 52	$ (31)	$ 100	$ 30