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Debt - Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
May 15, 2024 | Sep. 30, 2023 | Jun. 30, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | May 01, 2024
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit facility, expiration period |  |  | 5 years | 5 years |  |  |
Interest costs incurred |  |  |  | $ 2,560 | $ 2,650 | $ 2,790 |
Interest paid, including capitalized interest, operating and investing activities |  |  |  | 2,408 | $ 2,572 | $ 2,583 |
Senior Unsecured Notes | Senior Notes |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  | $ 10,000
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%
Five Year Credit Facility Expiring - August 2028 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ 3,000 | $ 3,000 |  |  |  |  |
Line of credit facility, expiration period | 5 years | 5 years |  |  |  |  |
364 Day Revolving Credit Facility - Expiring August 2024 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ 800 | $ 800 |  |  |  |  |
Line of credit facility, expiration period | 364 days | 364 days |  |  |  |  |
364 Day Revolving Credit Facility - Expiring August 2025 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit facility, expiration period |  | 364 days |  |  |  |  |
Line of credit facility, term out period |  | 1 year |  |  |  |  |
Three Year Credit Facility - Expiring August 2025 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ 3,000 | $ 3,000 |  |  |  |  |
Line of credit facility, expiration period | 3 years | 3 years |  |  |  |  |
Five Year Credit Facility - Expiring October 2024 |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ 3,200 | $ 3,200 |  |  |  |  |
Line of credit facility, expiration period | 5 years | 5 years |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  | $ 10,000 | $ 10,000 |  |  |
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 |  |  |  |  |  |

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