Debt - 2022 Financing Activities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 11,250	$ 11,250
Unsecured Debt | Fixed-Rate 5.0% Senior Unsecured Notes, Maturing January 2033
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 1,000	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	5.00%	5.00%
Unsecured Debt | Fixed-Rate 3.25% Senior Unsecured Notes, Maturing November 2051
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 500	$ 500
Debt Instrument, Interest Rate, Stated Percentage	3.25%	3.25%
Unsecured Debt | Fixed-rate 4.40% Senior Unsecured Notes, Maturing June 2027
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 500	$ 500
Debt Instrument, Interest Rate, Stated Percentage	4.40%	4.40%
Revolving Credit Facility | Floating-Rate Revolving Credit Facility, Maturity August 2027
Debt Instrument [Line Items]
Debt instrument, principal amount	$ 0
Debt Instrument, Interest Rate, Stated Percentage	0.00%