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Leases (Tables) | 12 Months Ended
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Dec. 31, 2021
Leases [Abstract] |
Schedule of Lease Related Assets and Liabilities | Operating lease amounts included on the Consolidated Balance Sheets are as follows:
|  | December 31,
|  | 2021 |  | 2020
|  | ($ in millions)
| Classification |  |  |
Assets |  |  |  |
ROU assets | Other assets | $ | 411 |  |  | $ | 433 |
Liabilities |  |  |  |
Current lease liabilities | Other current liabilities | $ | 82 |  |  | $ | 89 |
Non-current lease liabilities | Other liabilities | 331 |  |  | 344 |
Total lease liabilities |  | $ | 413 |  |  | $ | 433 |
Lease, Cost | The components of total lease expense, primarily included in “Purchased services and rents,” are as follows:
| 2021 |  | 2020
| ($ in millions)
Operating lease expense | $ | 106 |  |  | $ | 109 |
Variable lease expense | 44 |  |  | 42 |
Short-term lease expense | 9 |  |  | 9 |
Total lease expense | $ | 159 |  |  | $ | 160 |
Other information related to operating leases is as follows:
| December 31,
| 2021 |  | 2020
Weighted-average remaining lease term (years) on operating leases | 7.49 |  | 8.18
Weighted-average discount rates on operating leases | 3.04 | % |  | 3.50 | %
Lessee, Operating Lease, Liability, Maturity | Future minimum lease payments under non-cancellable operating leases are as follows:
| December 31, 2021
| ($ in millions)
2022 | $ | 92 |
2023 | 83 |
2024 | 73 |
2025 | 69 |
2026 | 55 |
2027 and subsequent years | 98 |
Total lease payments | 470 |
Less: Interest | 57 |
Present value of lease liabilities | $ | 413 |
| December 31, 2020
| ($ in millions)
2021 | $ | 101 |
2022 | 76 |
2023 | 67 |
2024 | 58 |
2025 | 57 |
2026 and subsequent years | 145 |
Total lease payments | 504 |
Less: Interest | 71 |
Present value of lease liabilities | $ | 433 |

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- Definition Assets And Liabilities, Lessee [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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