Leases (Tables)

12 Months Ended

Dec. 31, 2019

Components of operating lease expense were as follows (in millions):



	Year Ended
	December 31, 2019
Operating lease cost	$	1,820
Variable lease cost	541
Total operating lease cost	$	2,361

Supplemental Information Related to Operating Leases

Supplemental information related to operating leases was as follows (in millions):



	Year Ended
	December 31, 2019
Cash payments for operating leases	$	1,661
New operating lease assets obtained in exchange for operating lease liabilities	$	4,391

Future Minimum Operating Lease Payments

Future lease payments under operating leases as of December 31, 2019 were as follows (in millions):



2020	$	1,757
2021	1,845
2022	1,680
2023	1,508
2024	1,301
Thereafter	5,763
Total future lease payments	13,854
Less imputed interest	(2,441		)
Total lease liability balance	$	11,413

Future Minimum Lease Payments

As of December 31, 2018, prior to the adoption of Topic 842, future minimum payments under operating leases having initial or remaining non-cancelable lease terms in excess of one year, net of sublease income amounts, were as follows (in millions):



	Operating Leases⁽¹⁾		Sub-lease Income		Net Operating Leases
2019	$	1,319	$	16	$	1,303
2020	1,397		13		1,384
2021	1,337		10		1,327
2022	1,153		8		1,145
2023	980		3		977
Thereafter	3,916		5		3,911
Total minimum payments	$	10,102	$	55	$	10,047

⁽¹⁾

Includes future minimum payments for leases which have not yet commenced.