Annual report pursuant to Section 13 and 15(d)

Income Taxes - Narrative (Details)

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Income Taxes - Narrative (Details)
 12 Months Ended
Dec. 31, 2021
USD ($)
Jurisdiction
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Income Tax Disclosure [Line Items]      
Unrecognized tax benefits that would impact effective rate $ 959,000,000 $ 976,000,000 $ 814,000,000
Decrease in unrecognized tax benefits, reasonably possible 398,000,000    
Penalties and interest expense (benefit) 32,000,000 9,000,000 (19,000,000)
Penalties and interest accrued $ 167,000,000 130,000,000  
Number of jurisdictions for filing income tax returns (more than) | Jurisdiction 100    
Temporary differences with investments in Non-US subsidiaries $ 5,000,000,000    
Deferred tax liability, temporary differences with investments in Non-US subsidiaries 1,000,000,000    
Accumulated Other Comprehensive Income (Loss)      
Income Tax Disclosure [Line Items]      
Other comprehensive income (loss), tax expense (benefit) (877,000,000) $ 1,506,000,000 $ 1,860,000,000
Net operating losses – non-U.S.      
Income Tax Disclosure [Line Items]      
Valuation Allowance (253,000,000)    
United Kingdom | Net operating losses – non-U.S.      
Income Tax Disclosure [Line Items]      
Valuation Allowance $ 0