Accrued Expenses and Other Liabilities (Accrued Expenses and Other Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current
Compensation and benefits	$ 1,127	$ 1,165
Pension and postretirement benefits	57	57
Taxes, income and other	582	621
Contract liabilities	1,465	1,456
Sales and product allowances	155	171
Operating lease liabilities	180	167
Contract settlement financing payable	75	75
Other	1,172	1,103
Total	4,813	4,815
Noncurrent
Compensation and benefits	254	198
Pension and postretirement benefits	544	492
Taxes, income and other	3,428	4,128
Contract liabilities	249	221
Sales and product allowances	6	6
Operating lease liabilities	954	772
Contract settlement financing payable	354	420
Other	228	261
Total	$ 6,017	$ 6,498