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Debt Maturities (Details) - USD ($)
9 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Debt Maturities [Abstract]      
Debt $ 108,044,000,000   $ 117,717,000,000
Total unamortized discount 24,000,000   29,000,000
Unamortized debt issuance costs (197,000,000)   (212,000,000)
Total fair value adjustments (1,765,000,000)   $ 390,000,000
Unsecured Debt [Member] | Corporate debt [Member]      
Debt Maturities [Abstract]      
Debt Instrument, Repurchased Face Amount   $ 3,000,000,000  
DebtInstrumentRepurchaseAmountIncludingFees   $ 3,000,000,000  
Gain (Loss) on Repurchase of Debt Instrument $ 16,600,000