Borrowings - Pre-Swap Obligations (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Pre-swap annual contractual obligations of long-term debt outstanding
2018 (for Q4)	$ 1,724
2019	7,034
2020	6,286
2021	6,139
2022	4,320
2023 and beyond	17,946
Total	$ 43,450	$ 45,445

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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