Amount of short-term and long-term debt and lease obligation.

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

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Amount, after accumulated amortization, of debt discount (premium).

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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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Present value of lessee's discounted obligation for lease payments from finance lease.

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Long-term Debt and Finance Leases - Schedule of Long-term Debt and Finance Leases (Details) $ / shares in Units, $ in Millions		9 Months Ended
	Oct. 31, 2022 $ / shares	Sep. 30, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Finance leases		$ 12	$ 13
Subtotal long-term debt and finance leases (including current maturities)		8,112	8,113
Less current maturities		(62)	(4)
Less debt issuance costs		(74)	(83)
Discounts		(2)	(60)
Total long-term debt and finance leases		7,974	7,966
Recourse Debt
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		8,100	8,100
Recourse Debt \| Senior Notes, due 2027
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 375	375
Interest rate, stated percentage		6.625%
Recourse Debt \| Senior Notes, due 2028
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 821	821
Interest rate, stated percentage		5.75%
Recourse Debt \| Senior Notes, due 2029
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 733	733
Interest rate, stated percentage		5.25%
Recourse Debt \| Senior Notes, due 2029
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 500	500
Interest rate, stated percentage		3.375%
Recourse Debt \| Senior Notes, due 2031
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 1,030	1,030
Interest rate, stated percentage		3.625%
Recourse Debt \| Senior Notes, due 2032
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 1,100	1,100
Interest rate, stated percentage		3.875%
Recourse Debt \| Convertible Senior Notes due 2048
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 575	575
Interest rate, stated percentage		2.75%
Convertible notes, conversion price (in usd per share) \| $ / shares		$ 43.77
Conversion rate		0.0228467
Recourse Debt \| Convertible Senior Notes due 2048 \| Subsequent Event
Debt Instrument [Line Items]
Convertible notes, conversion price (in usd per share) \| $ / shares	$ 43.46
Conversion rate	0.0230116
Recourse Debt \| Senior Secured First Lien Notes, due 2024
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 600	600
Interest rate, stated percentage		3.75%
Recourse Debt \| Senior Secured First Lien Notes, due 2025
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 500	500
Interest rate, stated percentage		2.00%
Recourse Debt \| Senior Secured First Lien Notes, due 2027
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 900	900
Interest rate, stated percentage		2.45%
Recourse Debt \| Senior Secured First Lien Notes, due 2029
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 500	500
Interest rate, stated percentage		4.45%
Recourse Debt \| Tax-exempt bonds
Debt Instrument [Line Items]
Subtotal long-term debt (including current maturities)		$ 466	$ 466
Recourse Debt \| Tax-exempt bonds \| Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage		1.25%
Recourse Debt \| Tax-exempt bonds \| Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage		4.75%