Leases

12 Months Ended

Dec. 31, 2017

Leases [Abstract]

Leases

  NOTE 6   Leases

The components of the net investment in sales-type and direct financing leases at December 31 were as follows:

(Dollars in Millions)	2017			2016
Aggregate future minimum lease payments to be received	$	12,709		$	11,257
Unguaranteed residual values accruing to the lessor’s benefit		1,731			1,175
Unearned income		(1,205	)		(1,023	)
Initial direct costs		274			237
Total net investment in sales-type and direct financing leases(a)	$	13,509		$	11,646

(a) The accumulated allowance for uncollectible minimum lease payments was $94 million and $83 million at December 31, 2017 and 2016, respectively.

The minimum future lease payments to be received from sales-type and direct financing leases were as follows at December 31, 2017:

(Dollars in Millions)
2018	$	3,709
2019		3,643
2020		3,239
2021		1,180
2022		410
Thereafter		528