Property, Plant, and Capitalized Software Property Plant and Equipment Table (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Land and improvements	$ 712	$ 697
Buildings and improvements	5,573	5,519
Computer equipment	2,007	2,093
Furniture and fixtures	2,375	2,113
Less accumulated depreciation	(4,210)	(4,499)
Property and equipment, net	6,457	5,923
Capitalized software	7,822	6,636
Less accumulated amortization	(2,829)	(2,431)
Capitalized software, net	4,993	4,205
Total property, equipment and capitalized software, net	$ 11,450	$ 10,128