Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Debt Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Debt Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2021	Jun. 30, 2021	Jun. 30, 2020
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 9,825
Proceeds from Debt, Net of Issuance Costs	$ 9,780
Repayments of Debt		$ 9,882	$ 8,265
One Point One Six Seven Percent due February 4, 2023 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Feb. 04, 2023
Debt Instrument, Interest Rate, Stated Percentage	1.167%
Debt Instrument, Face Amount	$ 1,325
One Point Four Three Three Percent due February 4, 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Feb. 04, 2024
Debt Instrument, Interest Rate, Stated Percentage	1.433%
Debt Instrument, Face Amount	$ 3,000
Two Point One Nine Six Percent due February 4, 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Feb. 04, 2026
Debt Instrument, Interest Rate, Stated Percentage	2.196%
Debt Instrument, Face Amount	$ 5,500
Delayed Draw Term Loan Facility
Debt Instrument [Line Items]
Repayments of Debt	$ 9,825
Line of Credit Facility, Remaining Borrowing Capacity		4,000
Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		14,753
Three Hundred And Sixty Four Day Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		3,073
Two Year Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		5,280
Three Year Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		3,200
Five Year Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 3,200