Debt (Senior Notes) (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 12,438,000,000	$ 12,396,000,000
2020 Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 1,500,000,000	1,500,000,000
Debt instrument, maturity date	Feb. 15, 2027
Debt instrument, interest rate, stated percentage	3.875%
2021 Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 1,500,000,000	$ 1,500,000,000
Debt instrument, maturity date	Feb. 01, 2029
Debt instrument, interest rate, stated percentage	3.125%