Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Feb. 07, 2023	Jan. 11, 2023
Subsequent Event [Line Items]
Gains (losses) on retirement of long-term obligations	[1]	$ (28)	$ (145)	$ (95)
Unsecured Debt [Member] | 5.000% Unsecured Notes
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						5.00%
Subsequent Event
Subsequent Event [Line Items]
Dividends Payable, Amount Per Share					$ 1.565
Subsequent Event | Unsecured Debt [Member] | 5.000% Unsecured Notes
Subsequent Event [Line Items]
Debt Instrument, Face Amount						$ 1,000

[1] Inclusive of the write-off of the respective deferred financing costs.