Commitments and Contingencies - Litigation and Regulatory Matters (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Loss Contingencies [Line Items] | ||||
| Litigation settlement expense | $ 90,000,000 | $ 140,000,000 | $ 292,000,000 | $ 606,000,000 |
| Minimum | ||||
| Loss Contingencies [Line Items] | ||||
| Estimated range of possible loss | 0 | 0 | ||
| Maximum | ||||
| Loss Contingencies [Line Items] | ||||
| Estimated range of possible loss | $ 1,200,000,000 | $ 1,200,000,000 | ||
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- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. No definition available.
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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. No definition available.
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- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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