Leases - (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Operating lease payments

Future minimum lease payments as of June 30, 2019 and December 31, 2018 were as follows:

(in millions)	June 30, 2019 (2)			December 31, 2018 (3)
2019(1)	$	10		$	18
2020	18			17
2021	11			11
2022	10			9
2023	9			8
2024	6			5
2025 and thereafter	19			20
Total future minimum lease payments	$	83		$	88
Less: imputed interest	(11		)	N/A(4)
Total operating lease liabilities	72			N/A(4)
Current portion	17			N/A(4)
Non-current portion	55			N/A(4)

(1)    The remaining payments as of June 30, 2019 exclude those made during the six months ended June 30, 2019.

(2) Presented in accordance with ASC 842, which excludes base payments of $4 million for leases that do not yet have a commencement date.

(3)    Presented in accordance with ASC 840.

(4)    N/A - Not Applicable under ASC 840.