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Short-Term Borrowings and Long-Term Debt Maturities of commercial paper and long-term debt (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Debt Instrument [Line Items]  
2022 $ 3,626
2023 2,277
2024 2,652
2025 2,452
2026 2,652
Thereafter $ 32,829