Accrued and Other Liabilities - Accrued and Other Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Accrued liabilities
Dealer and customer allowances, claims and discounts	$ 10,402	$ 11,611
Deferred revenue	3,234	3,504
Product warranty and related liabilities	2,987	2,788
Payrolls and employee benefits excluding postemployment benefits	1,969	2,233
Other	7,895	7,913
Total accrued liabilities	26,487	28,049
Other liabilities
Deferred revenue	2,962	2,959
Product warranty and related liabilities	4,811	4,802
Operating lease liabilities	1,010	0
Employee benefits excluding postemployment benefits	704	658
Postemployment benefits including facility idling reserves	633	875
Other	3,026	3,063
Total other liabilities	$ 13,146	$ 12,357