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Leases and Capacity Purchase Agreements (Tables)

12 Months Ended

Dec. 31, 2019

The Company's lease cost for the years ended December 31 included the following components (in millions):



	2019			2018			2017
Operating lease cost	$	1,038		$	1,213		$	1,433
Variable and short-term lease cost	2,548			2,569			2,209
Amortization of finance lease assets	68			75			77
Interest on finance lease liabilities	85			44			24
Sublease income	(32		)	(38		)	(36		)
Total lease cost	$	3,707		$	3,863		$	3,707

Summary of Scheduled Future Minimum Lease Payments under Operating Leases

The table below summarizes the Company's scheduled future minimum lease payments under operating and finance leases, recorded on the balance sheet, as of December 31, 2019 (in millions):



	Operating Leases			Finance Leases
2020	$	920		$	62
2021	754			75
2022	591			49
2023	633			38
2024	626			35
After 2024	4,214			57
Minimum lease payments	7,738			316
Imputed interest	(2,106		)	(50		)
Present value of minimum lease payments	5,632			266
Less: current maturities of lease obligations	(686		)	(46		)
Long-term lease obligations	$	4,946		$	220

Summary of Scheduled Future Minimum Lease Payments under Finance Leases

The table below summarizes the Company's scheduled future minimum lease payments under operating and finance leases, recorded on the balance sheet, as of December 31, 2019 (in millions):



	Operating Leases			Finance Leases
2020	$	920		$	62
2021	754			75
2022	591			49
2023	633			38
2024	626			35
After 2024	4,214			57
Minimum lease payments	7,738			316
Imputed interest	(2,106		)	(50		)
Present value of minimum lease payments	5,632			266
Less: current maturities of lease obligations	(686		)	(46		)
Long-term lease obligations	$	4,946		$	220

Additional Information Related to Leases

The table below presents additional information related to our leases as of December 31:



	2019		2018
Weighted-average remaining lease term - operating leases	11 years		10 years
Weighted-average remaining lease term - finance leases	6 years		5 years
Weighted-average discount rate - operating leases	5.2	%	5.2	%
Weighted-average discount rate - finance leases	5.7	%	45.8	%

Supplemental Cash Flow Information Related to Leases

The table below presents supplemental cash flow information related to leases during the year ended December 31 (in millions):



	2019		2018		2017
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	902	$	1,078	$	1,451
Operating cash flows for finance leases	70		53		24
Financing cash flows for finance leases	151		79		84

Future Lease Payment Under Terms of Capacity Purchase Agreement

Based on these assumptions as of December 31, 2019, our future payments through the end of the terms of our CPAs are presented in the table below (in billions):



2020	$	2.9
2021	2.9
2022	2.4
2023	1.5
2024	1.3
After 2024	4.7
	$	15.7