Debt (Senior Notes - Schedule of Material Terms of Debt Outstanding) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Amount Outstanding	$ 12,388,000,000	$ 12,952,000,000
2020 Senior Notes [Member]
Debt Instrument [Line Items]
Issue Date	Feb. 04, 2020
Amount Outstanding	$ 1,500,000,000	1,500,000,000
Interest Rate Coupon	3.875%
Maturity Date	Feb. 15, 2027
Interest Due Dates	Feb. 15 & Aug. 15
Financing fees	$ 18,000,000.0
2021 Senior Notes [Member]
Debt Instrument [Line Items]
Issue Date	Jan. 29, 2021
Amount Outstanding	$ 1,500,000,000	$ 1,500,000,000
Interest Rate Coupon	3.125%
Maturity Date	Feb. 01, 2029
Interest Due Dates	Feb. 1 & Aug. 1
Financing fees	$ 14,800,000