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Commitments Contingencies and Guarantees (Maximum Potential Obligation) (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Commitment Period Two Thousand Twenty Six [Member] |
Guarantor Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 500.0
Commitment Period Two Thousand Thirty Three [Member] |
Guarantor Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | 450.0
Commitment Period Two Thousand Thirty Four [Member] |
Guarantor Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | 2,000.0
Commitment Period Two Thousand Thirty Five [Member] |
Guarantor Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | 1,314.2
Commitment Period Two Thousand Thirty Six [Member] |
Guarantor Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | 2,658.0
Commitment Period Two Thousand Thirty Seven [Member] |
Guarantor Obligations [Line Items] |
Guarantor Obligations, Maximum Exposure, Undiscounted | $ 6,750.0

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248 + Details
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