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Leases - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2018 | Jan. 01, 2020 | Dec. 31, 2019
Lessee, Lease, Description [Line Items] |  |  |  |
Operating leases, rent expense |  | $ 118 |  |
Net investment in leases | $ 237 |  |  | $ 250
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Reserve for estimated credit losses on lease payment receivables | $ 64 |  | $ 56 |
Minimum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Operating leases, remaining lease term | 1 month |  |  |
Finance leases, remaining lease term | 1 month |  |  |
Lessor lease term | 1 month |  |  |
Maximum |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Operating leases, remaining lease term | 17 years |  |  |
Finance leases, remaining lease term | 17 years |  |  |
Lessor lease term | 5 years |  |  |

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- Definition Lessor, Operating And Sales-Type Lease, Term of Contract + References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Remaining lease term of finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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- Definition Amount of net investment in sales-type and direct financing lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121561866&loc=SL77919306-209978 + Details
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- Definition Amount of allowance for credit loss on net investment in sales-type and direct financing leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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