Policyholder Account Balances (Guaranteed Minimum) (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	$ 25,167		$ 22,118
Americas [Member] | Life Insurance Product Line [Member] | Other Segments
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	3,285	$ 3,273	1,581	$ 1,612
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2,111		496
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	57		103
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	53		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,064		982
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	113		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	112		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	621		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	498		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	7		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	116		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,754		1,581
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	714		496
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	48		103
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	52		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	940		982
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	730		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	730		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	67		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	57		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Life Insurance Product Line [Member] | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	8		0
Americas [Member] | Insurance, Other | Other Segments
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	16,908	16,432	16,757	17,838
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	15,727		15,518
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	271		287
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	583		599
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	137		194
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	190		159
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,827		2,141
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,127		1,367
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	8		15
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	550		560
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	111		164
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	31		35
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	3,675		4,175
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	3,293		3,835
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	223		225
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	6		2
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2		0
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	151		113
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	10,220		8,935
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	10,191		8,902
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	29		33
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,186		1,506
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	1,116		1,414
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	11		14
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	27		37
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	24		30
Americas [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	8		11
Asia Pacific [Member] | Insurance, Other | Other Segments
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	4,926	$ 4,285	3,734	$ 3,990
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	4,926		3,734
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	519		602
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	519		602
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	998		1,144
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	998		1,144
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399 | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2,674		1,206
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	2,674		1,206
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	293		218
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	293		218
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeLessThan100Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	442		564
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	442		564
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 and Greater
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	0		0
Asia Pacific [Member] | Insurance, Other | Other Segments | PolicyholderAccountBalanceGuaranteedMinimumCreditingRateRangeFrom0100To0199Member | PolicyholderAccountBalanceAboveGuaranteedMinimumCreditingRateRangeFrom0051To0100
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]
Policyholder Account Balance	$ 0		$ 0