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Leases
 12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Leases Leases
We have entered into various non-cancelable operating lease agreements mostly for certain of our offices, data centers, colocations, and land. We have also entered into various non-cancelable finance lease agreements for certain network infrastructure. Our leases have original lease periods expiring between 2022 and 2093. Many leases include one or more options to renew. We do not assume renewals in our determination of the lease term unless the renewals are deemed to be reasonably assured. Our lease agreements generally do not contain any material residual value guarantees or material restrictive covenants.

The components of lease costs are as follows (in millions):
Year Ended December 31,
202120202019
Finance lease cost
Amortization of right-of-use assets$344 $259 $195 
Interest15 14 12 
Operating lease cost1,540 1,391 1,139 
Variable lease cost and other, net272 269 160 
Total lease cost$2,171 $1,933 $1,506 
Supplemental balance sheet information related to leases is as follows:
December 31,
20212020
Weighted-average remaining lease term
Finance leases13.9 years14.9 years
Operating leases13.0 years12.2 years
Weighted-average discount rate
Finance leases2.7 %2.9 %
Operating leases2.8 %3.1 %

The following is a schedule, by years, of maturities of lease liabilities as of December 31, 2021 (in millions):
Operating LeasesFinance Leases
2022$1,425 $90 
20231,542 65 
20241,513 45 
20251,354 45 
20261,295 45 
Thereafter9,995 406 
Total undiscounted cash flows17,124 696 
Less: Imputed interest(3,251)(115)
Present value of lease liabilities$13,873 $581 
Lease liabilities, current$1,127 $75 
Lease liabilities, non-current12,746 506 
Present value of lease liabilities$13,873 $581 

The table above does not include lease payments that were not fixed at commencement or lease modification. As of December 31, 2021, we have additional operating and finance leases, that have not yet commenced, with lease obligations of approximately $8.34 billion and $1.62 billion, respectively, mostly for offices, data centers, and network infrastructure. These operating and finance leases will commence between 2022 and 2028 with lease terms of greater than one year to 30 years.

Supplemental cash flow information related to leases is as follows (in millions):
Year Ended December 31,
202120202019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$1,406 $1,208 $902 
Operating cash flows for finance leases$15 $14 $12 
Financing cash flows for finance leases$677 $604 $552 
Lease liabilities arising from obtaining right-of-use assets:
Operating leases$4,466 $1,158 $5,081 
Finance leases$160 $121 $193 
Leases Leases
We have entered into various non-cancelable operating lease agreements mostly for certain of our offices, data centers, colocations, and land. We have also entered into various non-cancelable finance lease agreements for certain network infrastructure. Our leases have original lease periods expiring between 2022 and 2093. Many leases include one or more options to renew. We do not assume renewals in our determination of the lease term unless the renewals are deemed to be reasonably assured. Our lease agreements generally do not contain any material residual value guarantees or material restrictive covenants.

The components of lease costs are as follows (in millions):
Year Ended December 31,
202120202019
Finance lease cost
Amortization of right-of-use assets$344 $259 $195 
Interest15 14 12 
Operating lease cost1,540 1,391 1,139 
Variable lease cost and other, net272 269 160 
Total lease cost$2,171 $1,933 $1,506 
Supplemental balance sheet information related to leases is as follows:
December 31,
20212020
Weighted-average remaining lease term
Finance leases13.9 years14.9 years
Operating leases13.0 years12.2 years
Weighted-average discount rate
Finance leases2.7 %2.9 %
Operating leases2.8 %3.1 %

The following is a schedule, by years, of maturities of lease liabilities as of December 31, 2021 (in millions):
Operating LeasesFinance Leases
2022$1,425 $90 
20231,542 65 
20241,513 45 
20251,354 45 
20261,295 45 
Thereafter9,995 406 
Total undiscounted cash flows17,124 696 
Less: Imputed interest(3,251)(115)
Present value of lease liabilities$13,873 $581 
Lease liabilities, current$1,127 $75 
Lease liabilities, non-current12,746 506 
Present value of lease liabilities$13,873 $581 

The table above does not include lease payments that were not fixed at commencement or lease modification. As of December 31, 2021, we have additional operating and finance leases, that have not yet commenced, with lease obligations of approximately $8.34 billion and $1.62 billion, respectively, mostly for offices, data centers, and network infrastructure. These operating and finance leases will commence between 2022 and 2028 with lease terms of greater than one year to 30 years.

Supplemental cash flow information related to leases is as follows (in millions):
Year Ended December 31,
202120202019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$1,406 $1,208 $902 
Operating cash flows for finance leases$15 $14 $12 
Financing cash flows for finance leases$677 $604 $552 
Lease liabilities arising from obtaining right-of-use assets:
Operating leases$4,466 $1,158 $5,081 
Finance leases$160 $121 $193