Segment Information (Total Assets of Reportable Segments) (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 82,705	$ 92,175
Corporate and Other [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	3,620	7,905
Other Segments | Americas [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	46,238	49,600
Other Segments | CANADA
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	5,036	5,109
Other Segments | EMEA [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	8,716	11,835
Other Segments | Asia Pacific [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	19,095	17,726
Life Insurance Product Line [Member] | Other Segments | Americas [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	20,640	20,572
Life Insurance Product Line [Member] | Other Segments | CANADA
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	4,994	5,091
Life Insurance Product Line [Member] | Other Segments | EMEA [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	4,341	4,670
Life Insurance Product Line [Member] | Other Segments | Asia Pacific [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	9,072	10,048
Nontraditional Long-Duration Contracts [Member] | Other Segments | Americas [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	25,598	29,028
Nontraditional Long-Duration Contracts [Member] | Other Segments | CANADA
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	42	18
Nontraditional Long-Duration Contracts [Member] | Other Segments | EMEA [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	4,375	7,165
Nontraditional Long-Duration Contracts [Member] | Other Segments | Asia Pacific [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 10,023	$ 7,678