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Borrowings and Credit Agreements - Schedule of Borrowings (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Sep. 30, 2022 | Aug. 31, 2022 | May 31, 2022 | Dec. 31, 2021 | Aug. 18, 2021 | Dec. 31, 2020 | Aug. 31, 2020 | Mar. 31, 2020
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt | $ 51,288 |  |  |  |  |  |  |  |
Finance lease liabilities | 1,465 |  |  |  | $ 1,300 |  |  |  |
Total debt principal | 52,753 |  |  |  | 56,743 |  |  |  |
Debt premiums | 200 |  |  |  | 219 |  |  |  |
Debt discounts and deferred financing costs | (696) |  |  |  | (786) |  |  |  |
Long-term debt and lease obligation | 52,257 |  |  |  | 56,176 |  |  |  |
Current portion of long-term debt | (1,778) |  |  |  | (4,205) |  |  |  |
Long-term debt | $ 50,479 |  |  |  | $ 51,971 |  |  |  |
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] | Long-term debt (1) |  |  |  | Long-term debt (1) |  |  |  |
Senior Notes | 3.5% senior notes due July 2022 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.50% |  |  | 3.50% |  |  |  |  |
Long-term debt | $ 0 |  |  |  | $ 1,500 |  |  |  |
Senior Notes | 2.75% senior notes due November 2022 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 2.75% |  | 2.75% |  |  |  |  |  |
Long-term debt | $ 0 |  |  |  | 1,000 |  |  |  |
Senior Notes | 2.75% senior notes due December 2022 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 2.75% | 2.75% |  |  |  |  |  |  |
Long-term debt | $ 0 |  |  |  | 1,250 |  |  |  |
Senior Notes | 4.75% senior notes due December 2022 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.75% | 4.75% |  |  |  |  |  |  |
Long-term debt | $ 0 |  |  |  | 399 |  |  |  |
Senior Notes | 2.8% senior notes due June 2023 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 2.80% |  |  |  |  |  |  |  |
Long-term debt | $ 1,300 |  |  |  | 1,300 |  |  |  |
Senior Notes | 4% senior notes due December 2023 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.00% |  |  |  |  |  | 4.00% | 4.00% |
Long-term debt | $ 414 |  |  |  | 414 |  |  |  |
Senior Notes | 3.375% senior notes due August 2024 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.375% |  |  |  |  |  |  |  |
Long-term debt | $ 650 |  |  |  | 650 |  |  |  |
Senior Notes | 2.625% senior notes due August 2024 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 2.625% |  |  |  |  |  |  |  |
Long-term debt | $ 1,000 |  |  |  | 1,000 |  |  |  |
Senior Notes | 3.5% senior notes due November 2024 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.50% |  |  |  |  |  |  |  |
Long-term debt | $ 750 |  |  |  | 750 |  |  |  |
Senior Notes | 5% senior notes due December 2024 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 5.00% |  |  |  |  |  |  |  |
Long-term debt | $ 299 |  |  |  | 299 |  |  |  |
Senior Notes | 5% senior notes due December 2024 | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt | $ 3 |  |  |  |  |  |  |  |
Senior Notes | 4.1% senior notes due March 2025 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.10% |  |  |  |  |  | 4.10% | 4.10% |
Long-term debt | $ 950 |  |  |  | 950 |  |  |  |
Senior Notes | 3.875% senior notes due July 2025 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.875% |  |  |  |  |  |  |  |
Long-term debt | $ 2,828 |  |  |  | 2,828 |  |  |  |
Senior Notes | 2.875% senior notes due June 2026 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 2.875% |  |  |  |  |  |  |  |
Long-term debt | $ 1,750 |  |  |  | 1,750 |  |  |  |
Senior Notes | 3% senior notes due August 2026 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.00% |  |  |  |  |  |  |  |
Long-term debt | $ 750 |  |  |  | 750 |  |  |  |
Senior Notes | 3.625% senior notes due April 2027 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.625% |  |  |  |  |  |  |  | 3.625%
Long-term debt | $ 750 |  |  |  | 750 |  |  |  |
Senior Notes | 6.25% senior notes due June 2027 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 6.25% |  |  |  |  |  |  |  |
Long-term debt | $ 372 |  |  |  | 372 |  |  |  |
Senior Notes | 1.3% senior notes due August 2027 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 1.30% |  |  |  |  |  |  |  |
Long-term debt | $ 2,250 |  |  |  | 2,250 |  |  |  |
Senior Notes | 4.3% senior notes due March 2028 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.30% |  |  |  |  |  |  |  |
Long-term debt | $ 5,000 |  |  |  | 5,000 |  |  |  |
Senior Notes | 3.25% senior notes due August 2029 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.25% |  |  |  |  |  |  |  |
Long-term debt | $ 1,750 |  |  |  | 1,750 |  |  |  |
Senior Notes | 3.75% senior notes due April 2030 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.75% |  |  |  |  |  |  |  | 3.75%
Long-term debt | $ 1,500 |  |  |  | 1,500 |  |  |  |
Senior Notes | 1.75% senior notes due August 2030 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 1.75% |  |  |  |  |  |  |  |
Long-term debt | $ 1,250 |  |  |  | 1,250 |  |  |  |
Senior Notes | 1.875% senior notes due February 2031 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 1.875% |  |  |  |  |  |  |  |
Long-term debt | $ 1,250 |  |  |  | 1,250 |  |  |  |
Senior Notes | 2.125% senior notes due September 2031 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 2.125% |  |  |  |  | 2.125% |  |  |
Long-term debt | $ 1,000 |  |  |  | 1,000 |  |  |  |
Senior Notes | 4.875% senior notes due July 2035 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.875% |  |  |  |  |  |  |  |
Long-term debt | $ 652 |  |  |  | 652 |  |  |  |
Senior Notes | 6.625% senior notes due June 2036 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 6.625% |  |  |  |  |  |  |  |
Long-term debt | $ 771 |  |  |  | 771 |  |  |  |
Senior Notes | 6.75% senior notes due December 2037 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 6.75% |  |  |  |  |  |  |  |
Long-term debt | $ 533 |  |  |  | 533 |  |  |  |
Senior Notes | 4.78% senior notes due March 2038 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.78% |  |  |  |  |  |  |  |
Long-term debt | $ 5,000 |  |  |  | 5,000 |  |  |  |
Senior Notes | 6.125% senior notes due September 2039 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 6.125% |  |  |  |  |  |  |  |
Long-term debt | $ 447 |  |  |  | 447 |  |  |  |
Senior Notes | 4.125% senior notes due April 2040 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.125% |  |  |  |  |  |  |  | 4.125%
Long-term debt | $ 1,000 |  |  |  | 1,000 |  |  |  |
Senior Notes | 2.7% senior notes due August 2040 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 2.70% |  |  |  |  |  |  |  |
Long-term debt | $ 1,250 |  |  |  | 1,250 |  |  |  |
Senior Notes | 5.75% senior notes due May 2041 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 5.75% |  |  |  |  |  |  |  |
Long-term debt | $ 133 |  |  |  | 133 |  |  |  |
Senior Notes | 4.5% senior notes due May 2042 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.50% |  |  |  |  |  |  |  |
Long-term debt | $ 500 |  |  |  | 500 |  |  |  |
Senior Notes | 4.125% senior notes due November 2042 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.125% |  |  |  |  |  |  |  |
Long-term debt | $ 500 |  |  |  | 500 |  |  |  |
Senior Notes | 5.3% senior notes due December 2043 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 5.30% |  |  |  |  |  |  |  |
Long-term debt | $ 750 |  |  |  | 750 |  |  |  |
Senior Notes | 4.75% senior notes due March 2044 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.75% |  |  |  |  |  |  |  |
Long-term debt | $ 375 |  |  |  | 375 |  |  |  |
Senior Notes | 5.125% senior notes due July 2045 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 5.125% |  |  |  |  |  |  |  |
Long-term debt | $ 3,500 |  |  |  | 3,500 |  |  |  |
Senior Notes | 3.875% senior notes due August 2047 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 3.875% |  |  |  |  |  |  |  |
Long-term debt | $ 1,000 |  |  |  | 1,000 |  |  |  |
Senior Notes | 5.05% senior notes due March 2048 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 5.05% |  |  |  |  |  |  |  |
Long-term debt | $ 8,000 |  |  |  | 8,000 |  |  |  |
Senior Notes | 4.25% senior notes due April 2050 |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt interest rate | 4.25% |  |  |  |  |  |  |  | 4.25%
Long-term debt | $ 750 |  |  |  | 750 |  |  |  |
Other Debt Obligations |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Long-term debt | $ 314 |  |  |  | $ 320 |  |  |  |

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