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LONG-TERM DEBT - SCHEDULE (Details) - USD ($)
$ in Millions
Jan. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]      
Long-term debt, gross   $ 17,958 $ 28,493
Unamortized premium, net   1,261 670
Debt issuance costs   (73) (135)
Net book value of debt   19,146 29,028
Long-term finance leases   546 504
Current finance leases   143 85
Total debt and finance leases   19,835 29,617
Less current maturities of financing leases   (143) (85)
Less current maturities of long-term debt   (22) (101)
Long-term debt, net [1]   19,670 29,431
Senior notes      
Debt Instrument [Line Items]      
Long-term debt, gross   10,500 6,700
Net book value of debt   $ 9,800 6,800
2.600% senior notes due 2022 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   2.60%  
Long-term debt, gross   $ 0 101
2.700% senior notes due 2023 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   2.70%  
Long-term debt, gross   $ 0 $ 442
8.750% medium-term notes due 2023 | Senior notes | Subsequent event      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage 8.75%    
8.750% medium-term notes due 2023 | Medium-term notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   8.75% 8.75%
Long-term debt, gross   $ 22 $ 22
2.900% senior notes due 2024 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   2.90%  
Long-term debt, gross   $ 654 949
6.950% senior notes due 2024 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   6.95%  
Long-term debt, gross   $ 291 650
3.450% senior notes due 2024 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   3.45%  
Long-term debt, gross   $ 111 127
8.000% senior notes due 2025 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   8.00%  
Long-term debt, gross   $ 0 500
5.875% senior notes due 2025 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   5.875%  
Long-term debt, gross   $ 606 900
3.500% senior notes due 2025 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   3.50%  
Long-term debt, gross   $ 137 326
5.500% senior notes due 2025 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   5.50%  
Long-term debt, gross   $ 465 750
5.550% senior notes due 2026 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   5.55%  
Long-term debt, gross   $ 870 1,100
3.200% senior notes due 2026 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   3.20%  
Long-term debt, gross   $ 182 797
3.400% senior notes due 2026 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   3.40%  
Long-term debt, gross   $ 284 $ 779
7.500% debentures due 2026 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage     7.50%
7.500% debentures due 2026 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.50% 7.50%
Long-term debt, gross   $ 112 $ 112
8.500% senior notes due 2027 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   8.50%  
Long-term debt, gross   $ 489 500
3.000% senior notes due 2027 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   3.00%  
Long-term debt, gross   $ 216 $ 634
7.125% debentures due 2027 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.125% 7.125%
Long-term debt, gross   $ 150 $ 150
7.000% debentures due 2027 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.00% 7.00%
Long-term debt, gross   $ 48 $ 48
6.625% debentures due 2028 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   6.625% 6.625%
Long-term debt, gross   $ 14 $ 14
7.150% debentures due 2028 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.15%  
Long-term debt, gross   $ 232 $ 235
7.200% senior debentures due 2028 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.20% 7.20%
Long-term debt, gross   $ 82 $ 82
6.375% senior notes due 2028 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   6.375%  
Long-term debt, gross   $ 578 $ 600
7.200% debentures due 2029 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.20% 7.20%
Long-term debt, gross   $ 135 $ 135
7.950% debentures due 2029 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.95% 7.95%
Long-term debt, gross   $ 116 $ 116
8.450% senior debentures due 2029 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   8.45% 8.45%
Long-term debt, gross   $ 116 $ 116
3.500% senior notes due 2029 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   3.50%  
Long-term debt, gross   $ 286 $ 1,477
Variable rate bonds due 2030 | Variable rate bonds      
Debt Instrument [Line Items]      
Debt instrument, variable rate   5.32% 0.90%
Long-term debt, gross   $ 68 $ 68
8.875% senior notes due 2030 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   8.875% 8.875%
Long-term debt, gross   $ 1,000 $ 1,000
6.625% senior notes due 2030 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   6.625%  
Long-term debt, gross   $ 1,449 1,500
6.125% senior notes due 2031 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   6.125%  
Long-term debt, gross   $ 1,143 $ 1,250
7.500% senior notes due 2031 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.50% 7.50%
Long-term debt, gross   $ 900 $ 900
7.875% senior notes due 2031 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.875% 7.875%
Long-term debt, gross   $ 500 $ 500
6.450% senior notes due 2036 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   6.45%  
Long-term debt, gross   $ 1,727 1,750
Zero Coupon senior notes due 2036 | Senior notes      
Debt Instrument [Line Items]      
Long-term debt, gross   $ 673 2,269
4.300% senior notes due 2039 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   4.30%  
Long-term debt, gross   $ 247 $ 693
7.950% senior notes due 2039 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.95% 7.95%
Long-term debt, gross   $ 325 $ 325
6.200% senior notes due 2040 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   6.20%  
Long-term debt, gross   $ 737 750
4.500% senior notes due 2044 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   4.50%  
Long-term debt, gross   $ 191 608
4.625% senior notes due 2045 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   4.625%  
Long-term debt, gross   $ 296 $ 634
6.600% senior notes due 2046 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   6.60% 6.60%
Long-term debt, gross   $ 1,117 $ 1,157
4.400% senior notes due 2046 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   4.40%  
Long-term debt, gross   $ 424 976
4.100% senior notes due 2047 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   4.10%  
Long-term debt, gross   $ 258 663
4.200% senior notes due 2048 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   4.20%  
Long-term debt, gross   $ 304 961
4.400% senior notes due 2049 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   4.40%  
Long-term debt, gross   $ 280 $ 704
7.730% debentures due 2096 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage     7.73%
7.730% debentures due 2096 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.73% 7.73%
Long-term debt, gross   $ 58 $ 58
7.500% debentures due 2096 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.50% 7.50%
Long-term debt, gross   $ 60 $ 60
7.250% debentures due 2096 | Senior notes      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage     7.25%
7.250% debentures due 2096 | Debentures      
Debt Instrument [Line Items]      
Debt instrument interest rate stated percentage   7.25% 7.25%
Long-term debt, gross   $ 5 $ 5
[1] Included $546 million and $504 million of finance lease liabilities as of December 31, 2022 and 2021, respectively.