v3.8.0.1

Goodwill and Other Intangibles (Changes in the Book Value of Goodwill by Segment) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Goodwill [Roll Forward] |  |  |
Gross Goodwill, Beginning of the year | $ 833 | $ 824 | $ 831
Accumulated Impairment Losses, Beginning of the year | 0 | 0 | 0
Net Goodwill, Beginning of the year | 833 | 824 | 831
Acquisitions | 0 | 0 | 0
Other | 10 | 9 | (7)
Gross Goodwill, End of the year | 843 | 833 | 824
Accumulated Impairment Losses, End of the year | 0 | 0 | 0
Net Goodwill, End of the year | 843 | 833 | 824
Retirement |  |  |
Goodwill [Roll Forward] |  |  |
Gross Goodwill, Beginning of the year | 444 | 444 | 444
Accumulated Impairment Losses, Beginning of the year | 0 | 0 | 0
Net Goodwill, Beginning of the year | 444 | 444 | 444
Acquisitions | 0 | 0 | 0
Other | 0 | 0 | 0
Gross Goodwill, End of the year | 444 | 444 | 444
Accumulated Impairment Losses, End of the year | 0 | 0 | 0
Net Goodwill, End of the year | 444 | 444 | 444
Investment Management |  |  |
Goodwill [Roll Forward] |  |  |
Gross Goodwill, Beginning of the year | 230 | 231 | 235
Accumulated Impairment Losses, Beginning of the year | 0 | 0 | 0
Net Goodwill, Beginning of the year | 230 | 231 | 235
Acquisitions | 0 | 0 | 0
Other | 5 | (1) | (4)
Gross Goodwill, End of the year | 235 | 230 | 231
Accumulated Impairment Losses, End of the year | 0 | 0 | 0
Net Goodwill, End of the year | 235 | 230 | 231
International Insurance |  |  |
Goodwill [Roll Forward] |  |  |
Gross Goodwill, Beginning of the year | 159 | 149 | 152
Accumulated Impairment Losses, Beginning of the year | 0 | 0 | 0
Net Goodwill, Beginning of the year | 159 | 149 | 152
Acquisitions | 0 | 0 | 0
Other | 5 | 10 | (3)
Gross Goodwill, End of the year | 164 | 159 | 149
Accumulated Impairment Losses, End of the year | 0 | 0 | 0
Net Goodwill, End of the year | $ 164 | $ 159 | $ 149

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e961-128460 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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