LEASES

As described in Note 1, effective January 1, 2019, we adopted ASC 842 using the optional transition method. In accordance with the optional transition method, we did not recast the prior period unaudited condensed consolidated financial statements and all prior period amounts and disclosures are presented under ASC 840. Finance leases are not material to our unaudited condensed consolidated financial statements and are therefore not included in the following disclosures.

Total Lease Cost

Total lease cost is included in Product and Service costs and General and administrative expenses in the unaudited condensed consolidated statement of earnings and comprehensive income and is recorded net of immaterial sublease income. Total lease cost is comprised of the following:



$ in millions	Three Months Ended March 31, 2019
Operating lease cost	$	82
Variable lease cost	2
Short-term lease cost	17
Total lease cost	$	101

Supplemental Balance Sheet Information

Supplemental operating lease balance sheet information consists of the following:



$ in millions	March 31, 2019
Operating lease right-of-use assets	$	1,283

Other current liabilities	229
Operating lease liabilities	1,098
Total operating lease liabilities	$	1,327

Other Supplemental Information

Other supplemental operating lease information consists of the following:



$ in millions	Three Months Ended March 31, 2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	84
Right-of-use assets obtained in exchange for new lease liabilities	54

Weighted average remaining lease term	11.0 years
Weighted average discount rate	4.0		%

Maturities of Lease Liabilities

Maturities of operating lease liabilities as of March 31, 2019 were as follows:



$ in millions
Year Ending December 31
2019⁽¹⁾	$	208
2020	260
2021	207
2022	170
2023	134
Thereafter	737
Total lease payments	1,716
Less: imputed interest	(389		)
Present value of operating lease liabilities	$	1,327


⁽¹⁾	Excludes the three months endedMarch 31, 2019.

As of March 31, 2019, we have a rental commitment of $226 million for a real estate lease that has not yet commenced. This operating lease is expected to commence in the fourth quarter of 2019 with a lease term of approximately 17 years.

Rental expense for operating leases classified under ASC 840 for the three months ended March 31, 2018 was $92 million, net of immaterial amounts of sublease income. As of December 31, 2018, future minimum lease payments under long-term non-cancelable operating leases as classified under ASC 840 were as follows:



$ in millions
Year Ending December 31
2019	$	312
2020	270
2021	221
2022	186
2023	152
Thereafter	939
Total minimum lease payments	$	2,080