Financing Receivables - Credit Quality Year of Origination (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Amortized cost/recorded investment for each class of receivables, by credit quality indicator
Amortized Cost/Recorded Investment	$ 20,072	$ 22,421
Americas | Aaa - Baa3
Amortized cost/recorded investment for each class of receivables, by credit quality indicator
2020	1,422
2019	2,213
2018	1,148
2017	722
2016	292
2015 and prior	18
Amortized Cost/Recorded Investment	5,815
Americas | Ba1 - D
Amortized cost/recorded investment for each class of receivables, by credit quality indicator
2020	883
2019	1,601
2018	736
2017	386
2016	309
2015 and prior	30
Amortized Cost/Recorded Investment	3,945
EMEA | Aaa - Baa3
Amortized cost/recorded investment for each class of receivables, by credit quality indicator
2020	633
2019	966
2018	400
2017	141
2016	94
2015 and prior	45
Amortized Cost/Recorded Investment	2,278
EMEA | Ba1 - D
Amortized cost/recorded investment for each class of receivables, by credit quality indicator
2020	806
2019	1,043
2018	359
2017	191
2016	68
2015 and prior	40
Amortized Cost/Recorded Investment	2,506
Asia Pacific | Aaa - Baa3
Amortized cost/recorded investment for each class of receivables, by credit quality indicator
2020	251
2019	1,607
2018	208
2017	79
2016	36
2015 and prior	20
Amortized Cost/Recorded Investment	2,200
Asia Pacific | Ba1 - D
Amortized cost/recorded investment for each class of receivables, by credit quality indicator
2020	163
2019	678
2018	82
2017	37
2016	20
2015 and prior	16
Amortized Cost/Recorded Investment	$ 996