Leases (Tables)

12 Months Ended

Dec. 31, 2019

The components of lease expense were as follows (in millions):



	Year Ended December 31, 2019
Lease cost
Finance lease cost:
Amortization of assets	$	150
Interest of lease liabilities	15
Operating lease cost	321
Short-term lease cost	28
Variable lease cost	100
Sublease income	(2		)
Total lease cost	$	612

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



	Year Ended December 31, 2019
Other information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from financing leases	$	12
Operating cash flows from operating leases	275
Financing cash flows from financing leases	138
Right-of-use assets obtained in exchange for lease obligations:
Operating lease liabilities	$	918
Finance lease liabilities	251

Supplemental balance sheet information related to leases was as follows (in millions, except lease term and discount rate):



	As of December 31, 2019
Operating Leases
Operating lease right-of-use assets	$	1,594
Operating lease liability, current	196
Operating lease liabilities, non-current	1,523
Total operating lease liabilities	$	1,719



	As of December 31, 2019
Finance Leases
Property and equipment, at cost	$	539
Accumulated depreciation	(247		)
Property and equipment, net	$	292
Other current liabilities	$	165
Other long-term liabilities	143
Total finance leases liabilities	$	308



	As of December 31, 2019
Weighted-average remaining lease term
Operating leases	16 years
Finance leases	2 years
Weighted-average discount rate
Operating leases	7.1	%
Finance leases	5.0	%

Maturities of lease liabilities were as follows (in millions):



	As of December 31, 2019
	Operating Leases			Finance Leases
2020	216			176
2021	248			115
2022	283			32
2023	244			—
2024	201			—
Thereafter	2,195			—
Total undiscounted lease payments	3,387			323
Less: imputed interest	(1,668		)	(15		)
Total lease liabilities	$	1,719		$	308

Maturities of lease liabilities were as follows (in millions):



	As of December 31, 2019
	Operating Leases			Finance Leases
2020	216			176
2021	248			115
2022	283			32
2023	244			—
2024	201			—
Thereafter	2,195			—
Total undiscounted lease payments	3,387			323
Less: imputed interest	(1,668		)	(15		)
Total lease liabilities	$	1,719		$	308

Future minimum payments related to the financing obligations as of December 31, 2019 are summarized below (in millions):

Prior to the adoption of ASC 842, future minimum payments for noncancellable operating leases as of December 31, 2018 were as follows (in millions):