Finance Receivables (Details 5) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Customer
Financing Receivable, Recorded Investment, Past Due
Recorded investment in finance receivables on non-accrual status	$ 744	$ 807
Customer | North America
Financing Receivable, Recorded Investment, Past Due
Recorded investment in finance receivables on non-accrual status	38	77
Customer | EAME
Financing Receivable, Recorded Investment, Past Due
Recorded investment in finance receivables on non-accrual status	168	154
Customer | Asia/Pacific
Financing Receivable, Recorded Investment, Past Due
Recorded investment in finance receivables on non-accrual status	19	4
Customer | Mining
Financing Receivable, Recorded Investment, Past Due
Recorded investment in finance receivables on non-accrual status	44	50
Customer | Latin America
Financing Receivable, Recorded Investment, Past Due
Recorded investment in finance receivables on non-accrual status	103	106
Customer | Caterpillar Power Finance
Financing Receivable, Recorded Investment, Past Due
Recorded investment in finance receivables on non-accrual status	372	416
Dealer | Latin America
Financing Receivable, Recorded Investment, Past Due
Recorded investment in finance receivables on non-accrual status	$ 81	$ 78