Restructuring (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Charges [Abstract]
Restructuring reserves	$ 216	$ 135	$ 67
Restructuring, Incurred Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Labor and Related Expense	Labor and Related Expense	Labor and Related Expense
Restructuring charges, net of revisions	$ 179	$ 142	$ (10)
Cumulative restructuring expense	$ 277