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

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- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Weighted average interest rate of debt outstanding.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of increase (decrease) of the credit facility.

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Debt - Narrative (Details) - USD ($)	12 Months Ended
Debt - Narrative (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 31, 2022
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 105,000,000	$ 0	$ 0
Revolving Credit Facilities \| Maximum
Debt Instrument [Line Items]
Expiration period	6 years
Senior Notes
Debt Instrument [Line Items]
Weighted average interest rate (percent)	2.77%
Face amount of debt	$ 45,300,000,000
Senior Notes \| Senior Notes with Maturity Dates from 2024 to 2031
Debt Instrument [Line Items]
Weighted average interest rate (percent)	1.62%
Face amount of debt	$ 12,200,000,000
Senior Notes \| 5.2% Senior Notes Due 2023
Debt Instrument [Line Items]
Face amount of debt	$ 1,500,000,000
Interest rate (percent)	5.20%
Loss on extinguishment of debt	$ 105,000,000
Senior Notes \| Senior Notes Due with Maturity Dates from 2027 to 2032 \| Subsequent Event
Debt Instrument [Line Items]
Face amount of debt				$ 2,600,000,000
Interest rate (percent)				2.57%
Line of Credit
Debt Instrument [Line Items]
Weighted average interest rate (percent)	2.69%
Debt instrument term	4 years
Unsecured Debt
Debt Instrument [Line Items]
Issuance costs	$ 114,000,000	106,000,000
Secured Debt
Debt Instrument [Line Items]
Weighted average interest rate (percent)	1.27%
Issuance costs	$ 82,000,000	$ 85,000,000
Secured Debt \| Revolving Credit Facilities
Debt Instrument [Line Items]
Renewed credit facilities	$ 25,800,000,000
Secured Debt \| Securitization notes payable
Debt Instrument [Line Items]
Weighted average interest rate (percent)	0.79%
Face amount of debt	$ 23,300,000,000