Investment in Operating Leases, Net (Tables)

3 Months Ended

Mar. 31, 2018

Leases, Operating [Abstract]

Schedule of Property Subject to or Available for Operating Lease [Table Text Block]

Investments in operating leases were as follows.

($ in millions)	March 31, 2018			December 31, 2017
Vehicles	$	10,206		$	10,556
Accumulated depreciation	(1,676		)	(1,815		)
Investment in operating leases, net	$	8,530		$	8,741

Depreciation Expense On Operating Lease Assets [Table Text Block]

Depreciation expense on operating lease assets includes remarketing gains and losses recognized on the sale of operating lease assets. The following summarizes the components of depreciation expense on operating lease assets.

	Three months ended March 31,
($ in millions)	2018			2017
Depreciation expense on operating lease assets (excluding remarketing gains and losses)	$	291		$	386
Remarketing (gains) losses	(18		)	3
Net depreciation expense on operating lease assets	$	273		$	389