Debt (Schedule of Debt) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Nov. 30, 2022	Oct. 31, 2018	Jun. 30, 2008
Debt Instrument [Line Items]
Long-term debt	$ 11,582,000,000
Finance leases	192,000,000	$ 123,000,000
Total debt	11,518,000,000	11,370,000,000
Less short-term portion	(1,465,000,000)	(161,000,000)
Total long-term debt	$ 10,053,000,000	$ 11,209,000,000
Weighted-average interest rate on average debt outstanding	6.40%	5.40%
Line of credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 1,000,000,000
Repurchase facility expiring 2023 | Repurchase facility
Debt Instrument [Line Items]
Long-term debt	$ 100,000,000	$ 100,000,000
Accounts receivable securitization facility expiring 2024 | Line of credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	1,300,000,000
Long-term debt	1,300,000,000	959,000,000
Borrowing capacity, net of letters of credit	$ 0
Interest rate at December 31, 2023	6.40%
Average month-end debt outstanding	$ 1,171,000,000
Weighted-average interest rate on average debt outstanding	6.10%
Maximum month-end debt outstanding	$ 1,300,000,000
Term loan facility expiring 2025
Debt Instrument [Line Items]
Long-term debt	$ 945,000,000	953,000,000
Debt repayment installment rate	1.00%
$3.75 billion ABL facility expiring 2027 | Line of credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 4,250,000,000				$ 1,250,000,000
Long-term debt	1,261,000,000	1,523,000,000
Borrowing capacity, net of letters of credit	2,967,000,000
Letters of credit	$ 14,000,000
Interest rate at December 31, 2023	6.50%
Average month-end debt outstanding	$ 1,694,000,000
Weighted-average interest rate on average debt outstanding	6.20%
Maximum month-end debt outstanding	$ 1,848,000,000
5 1/2 percent Senior Notes due 2027 | Senior notes
Debt Instrument [Line Items]
Stated interest rate	5.50%
Long-term debt	$ 498,000,000	498,000,000
3 7/8 percent Senior Secured Notes due 2027 | Senior notes
Debt Instrument [Line Items]
Stated interest rate	3.875%
Long-term debt	$ 745,000,000	744,000,000
4 7/8 percent Senior Notes due 2028 | Senior notes
Debt Instrument [Line Items]
Stated interest rate	4.875%
Long-term debt	$ 1,665,000,000	1,663,000,000
6 percent Senior Secured Notes due 2029 | Senior notes
Debt Instrument [Line Items]
Stated interest rate	600.00%		6.00%
Long-term debt	$ 1,488,000,000	1,486,000,000
5 1/4 percent Senior Notes due 2030 | Senior notes
Debt Instrument [Line Items]
Stated interest rate	5.25%
Long-term debt	$ 745,000,000	744,000,000
4 percent Senior Notes due 2030 | Senior notes
Debt Instrument [Line Items]
Stated interest rate	4.00%
Long-term debt	$ 744,000,000	743,000,000
3 7/8 percent Senior Notes due 2031 | Senior notes
Debt Instrument [Line Items]
Stated interest rate	3.875%
Long-term debt	$ 1,091,000,000	1,090,000,000
3 3/4 percent Senior Notes due 2032 | Senior notes
Debt Instrument [Line Items]
Stated interest rate	3.75%
Long-term debt	$ 744,000,000	$ 744,000,000
Term loan facility | Line of credit
Debt Instrument [Line Items]
Borrowing capacity, net of letters of credit	$ 0
Interest rate at December 31, 2023	7.10%
Average month-end debt outstanding	$ 953,000,000
Weighted-average interest rate on average debt outstanding	6.90%
Maximum month-end debt outstanding	$ 958,000,000
Repurchase facility | Line of credit
Debt Instrument [Line Items]
Interest rate at December 31, 2023	6.50%
Average month-end debt outstanding	$ 50,000,000
Weighted-average interest rate on average debt outstanding	6.00%
Maximum month-end debt outstanding	$ 100,000,000
Senior Notes 4.875 Percent, One | Senior notes
Debt Instrument [Line Items]
Long-term debt	1,661,000,000
Senior Notes 4.875 Percent, Two | Senior notes
Debt Instrument [Line Items]
Long-term debt	$ 4,000,000