Debt - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	May 15, 2024
Debt Instrument [Line Items]
Line of credit facility, expiration period		5 years
Interest costs incurred		$ 2,874	$ 2,560	$ 2,650
Interest paid, including capitalized interest, operating and investing activities		2,440	2,408	2,572
Interest paid, capitalized, investing activities		149	$ 101	$ 89
Thereafter		37
364 Day Revolving Credit Facility - Expiring August 2024
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 800
364 Day Revolving Credit Facility - Expiring August 2024 | Line of Credit
Debt Instrument [Line Items]
Line of credit facility, expiration period	364 days
Five Year Credit Facility - Expiring October 2024
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 3,200
Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		10,000
Line of Credit | Five Year Credit Facility Expiring - May 2029
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity					$ 4,000
Line of credit facility, expiration period	5 years
Line of Credit | Five Year Credit Facility - Expiring October 2024
Debt Instrument [Line Items]
Line of credit facility, expiration period	5 years
Line of Credit | Five Year Credit Facility - Expiring August 2025
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 3,000
Line of credit facility, expiration period		3 years
Line of Credit | Five Year Credit Facility Expiring - August 2028
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 3,000
Line of credit facility, expiration period		5 years
Senior Unsecured Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument, face amount	$ 10,000
Proceeds from debt, net of issuance costs	9,900
Unsecured Senior Notes Due May 2027 | Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,000
Debt instrument, interest rate, stated percentage	6.259%
Unsecured Senior Notes Due May 2029 | Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,500
Debt instrument, interest rate, stated percentage	6.298%
Unsecured Senior Notes Due May 2031 | Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,000
Debt instrument, interest rate, stated percentage	6.388%
Unsecured Senior Notes Due May 2034 | Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 2,500
Debt instrument, interest rate, stated percentage	6.528%
Unsecured Senior Notes Due May 2054 | Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 2,500
Debt instrument, interest rate, stated percentage	6.858%
Unsecured Senior Notes Due May 2064 | Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,500
Debt instrument, interest rate, stated percentage	7.008%