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

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Debt - Debt Instrument Redemption (Details) - USD ($)		3 Months Ended
Debt - Debt Instrument Redemption (Details) - USD ($)	Apr. 15, 2022	Mar. 31, 2022
Debt Instrument [Line Items]
Principal Amount		$ 132,000,000
Senior Notes \| Affiliates
Debt Instrument [Line Items]
Principal Amount		1,500,000,000
4.000% Senior Notes due 2022 \| Senior Notes
Debt Instrument [Line Items]
Principal Amount		$ 500,000,000
Redemption Price (as a percent)		100.00%
4.000% Senior Notes to affiliates due 2022 \| Senior Notes
Debt Instrument [Line Items]
Redemption Price (as a percent)		100.00%
4.000% Senior Notes to affiliates due 2022 \| Senior Notes \| Affiliates
Debt Instrument [Line Items]
Principal Amount		$ 1,000,000,000
4.738% Series 2018-1 A-1 Notes due 2025 \| Senior Notes
Debt Instrument [Line Items]
Principal Amount		$ 131,000,000
Interest rate, stated percentage		4.738%
Other debt
Debt Instrument [Line Items]
Principal Amount		$ 1,000,000
4.000% Senior Notes due 2022
Debt Instrument [Line Items]
Interest rate, stated percentage		4.00%
4.000% Senior Notes due 2022 \| Affiliates
Debt Instrument [Line Items]
Interest rate, stated percentage		4.00%
5.375% Senior Notes to affiliates due 2022 \| Affiliates \| Subsequent Event
Debt Instrument [Line Items]
Interest rate, stated percentage	5.375%
5.375% Senior Notes to affiliates due 2022 \| Senior Notes \| Affiliates \| Subsequent Event
Debt Instrument [Line Items]
Interest rate, stated percentage	5.375%
Repayments of debt	$ 1,250,000,000