Fair Value Measurements (Narrative) (Details) - USD ($) |
Sep. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Fair Value Disclosures [Abstract] | ||
| Transfers from Level I to Level II | $ 0 | |
| Transfers from Level II to Level I | 14,000,000 | |
| Life insurance contracts and other non-majority owned investments, fair value | $ 302,000,000 | $ 279,000,000 |
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- Definition Life insurance contracts and cost method investments fair value disclosure No definition available.
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- Definition Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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