Intangibles - Definite and Indefinite Lived Intangible Assets (Details) $ in Millions	9 Months Ended
Sep. 30, 2020 USD ($)
Customer relationships and contracts
Finite-Lived Intangible Assets [Line Items]
Cost	$ 768
Accumulated amortization	(594)
Net carrying amount	$ 174
Weighted average useful life (years)	10 years
Software
Finite-Lived Intangible Assets [Line Items]
Cost	$ 394
Accumulated amortization	(246)
Net carrying amount	$ 148
Software \| Minimum
Finite-Lived Intangible Assets [Line Items]
Weighted average useful life (years)	2 years
Software \| Maximum
Finite-Lived Intangible Assets [Line Items]
Weighted average useful life (years)	10 years
Value of Distribution Asset (VODA)
Finite-Lived Intangible Assets [Line Items]
Cost	$ 140
Accumulated amortization	(6)
Net carrying amount	$ 134
Weighted average useful life (years)	15 years
FGL
Finite-Lived Intangible Assets [Line Items]
Intangibles, net	$ 543
FGL \| Licensing Agreements
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived, cost	40
FGL \| Trade names
Finite-Lived Intangible Assets [Line Items]
Cost	69
Accumulated amortization	(22)
Net carrying amount	$ 47
Weighted average useful life (years)	10 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

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- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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