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v3.19.3.a.u2

Capital Management - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2019 USD ($) | Dec. 31, 2018
Disclosure of objectives, policies and processes for managing capital [line items] |  |
Targeted debt-to-EBITDA ratio | 2 |
Debt-to-capitalization ratio, maximum | 0.6 |
Actual debt-to-EBITDA ratio | 360.00% | 90.00%
Actual net debt-to-capitalization ratio | 0.15 | 0.13
Revolving Credit Facility Due November 2023 |  |
Disclosure of objectives, policies and processes for managing capital [line items] |  |
Maximum borrowing capacity | $ 4,000,000,000 |

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Debt Instrument, Covenant, Maximum Ratio Of Indebtedness To New Capital + References No definition available. + Details
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- Details
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