Total lease payments

[Table of Conten](#i207805ce14724a60909000a6c8cb9e11_7)[t](#i207805ce14724a60909000a6c8cb9e11_7)[s](#i207805ce14724a60909000a6c8cb9e11_7)Operating lease cost was $60 million, $60 million, and $58 million for the years ended December 31, 2021, 2020, and 2019, respectively. Short-term and variable lease cost was immaterial for the years ended December 31, 2021, 2020, and 2019.During the years ended December 31, 2021 and 2020, cash paid for operating leases included in operating cash flows was $53 million and $52 million, respectively. ROU assets obtained in exchange for operating lease liabilities were $34 million and $55 million for the years ended December 31, 2021 and 2020, respectively.The following table presents the maturities of our operating lease liabilities as of December 31, 2021 ($ in millions):

|  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- |
|  |  |  |  |  |  |
| 2022 | $ | 45.6  |  |
| 2023 | 36.7  |  |
| 2024 | 27.6  |  |
| 2025 | 19.5  |  |
| 2026 | 15.6  |  |
| Thereafter | 58.3  |  |
| Total lease payments | 203.3  |  |
| Less: imputed interest | (18.8) |  |
| Total lease liabilities | $ | 184.5  |  |

As of December 31, 2021 and 2020, the weighted average lease term of our operating leases was 7.85 years and 7.5 years, respectively, and the weighted average discount rate of our operating leases was 2.6% and 2.8%, respectively. We primarily use our incremental borrowing rate as the discount rate for our operating leases, as we are generally unable to determine the interest rate implicit in the lease. As of December 31, 2021, we did not enter into any operating leases for which the lease term had not yet commenced. NOTE 11. FINANCING The carrying value of the components of our long-term debt as of December 31 were as follows ($ in millions):

|  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  |  |  |  |  |  |  |  |  |  |  |  |
|  | 2021 |  | 2020 |
| U.S. dollar-denominated commercial paper | $ | 364.9  |  |  | $ | —  |  |
|  |  |  |  |
| 3.15% senior unsecured notes due 2026 | 895.1  |  |  | 894.1  |  |
| 4.30% senior unsecured notes due 2046 | 547.3  |  |  | 547.2  |  |
| 0.875% senior convertible notes due 2022 | 1,152.0  |  |  | 1,389.0  |  |
| Delayed-Draw Term Loan | 999.7  |  |  | —  |  |
| Term Loan due May 2021 | —  |  |  | 1,000.0  |  |
|  |  |  |  |
| Term Loan due March 2021 | —  |  |  | 399.8  |  |
|  |  |  |  |
|  |  |  |  |
| Long-term debt | 3,959.0  |  |  | 4,230.1  |  |
| Less: current portion of long-term debt | 2,151.7  |  |  | 1,399.8  |  |
| Long-term debt, net of current maturities | $ | 1,807.3  |  |  | $ | 2,830.3  |  |

Aggregate unamortized debt discounts, premiums, and issuance costs of $13 million and $57 million as of December 31, 2021 and December 31, 2020, respectively, are netted against the principal amounts of the components of debt in the table above.76
