Borrowings - Pre-Swap Obligations (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Pre-swap annual contractual obligations of long-term debt outstanding
2019 (for Q2- Q4)	$ 5,459
2020	7,374
2021	6,700
2022	4,354
2023	5,358
2024 and beyond	18,102
Total	$ 47,346	$ 43,196

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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