Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits, beginning of year	$ 1,214	$ 1,139	$ 1,095
Additions based on tax positions related to the current year	64	72	44
Additions for tax positions of prior years	21	41	49
Reductions for tax positions of prior years	(14)	(15)	(10)
Acquisitions, divestitures and other	(12)	(14)	6
Lapse of statute of limitations	(14)	(11)	(16)
Settlements	(9)	(8)	(7)
Effect of foreign currency translation	(21)	10	(22)
Unrecognized tax benefits, end of year	$ 1,229	$ 1,214	$ 1,139