v3.22.0.1
Debt - Schedule of Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Aug. 23, 2021
Aug. 13, 2021
Mar. 23, 2021
Dec. 31, 2020
Debt Instrument [Line Items]          
Unamortized premium $ 1,740       $ 2,197
Unamortized discount (200)       (197)
Debt issuance costs and consent fees (238)       (244)
Total debt 74,193       71,125
Less: Current portion of Senior Notes and other debt to third parties 3,378       4,579
Total long-term debt 68,570       66,546
Long-term debt 67,076       61,830
Long-term debt to affiliates 1,494       4,716
Affiliates          
Debt Instrument [Line Items]          
Unamortized discount (5)       (20)
Affiliates | Senior Notes          
Debt Instrument [Line Items]          
Less: Current portion of Senior Notes and other debt to third parties 2,245       0
3.360% Series 2016-1 A-1 Notes due 2021          
Debt Instrument [Line Items]          
Long-term debt $ 0       656
3.360% Series 2016-1 A-1 Notes due 2021 | Senior Notes          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.36%        
7.250% Senior Notes due 2021          
Debt Instrument [Line Items]          
Long-term debt $ 0       2,250
7.250% Senior Notes due 2021 | Senior Notes          
Debt Instrument [Line Items]          
Interest rate, stated percentage 7.25%        
11.500% Senior Notes due 2021          
Debt Instrument [Line Items]          
Long-term debt $ 0       1,000
4.000% Senior Notes due 2022          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.00%        
Long-term debt $ 500       500
4.000% Senior Notes due 2022 | Affiliates          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.00%        
Long-term debt $ 1,000       1,000
5.375% Senior Notes to affiliates due 2022 | Affiliates          
Debt Instrument [Line Items]          
Interest rate, stated percentage 5.375%        
Long-term debt $ 1,250       1,250
6.000% Senior Notes due 2022          
Debt Instrument [Line Items]          
Long-term debt $ 2,280       2,280
6.000% Senior Notes due 2023          
Debt Instrument [Line Items]          
Interest rate, stated percentage 6.00%        
Long-term debt $ 0       1,300
7.875% Senior Notes due 2023          
Debt Instrument [Line Items]          
Long-term debt $ 4,250       4,250
6.000% Senior Notes due 2024          
Debt Instrument [Line Items]          
Interest rate, stated percentage 6.00%        
Long-term debt $ 0       1,000
7.125% Senior Notes due 2024          
Debt Instrument [Line Items]          
Long-term debt $ 2,500       2,500
3.500% Senior Secured Notes due 2025          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.50%        
Long-term debt $ 3,000       3,000
4.738% Series 2018-1 A-1 Notes due 2025          
Debt Instrument [Line Items]          
Long-term debt $ 1,706       2,100
4.738% Series 2018-1 A-1 Notes due 2025 | Senior Notes          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.738%        
5.125% Senior Notes due 2025          
Debt Instrument [Line Items]          
Interest rate, stated percentage 5.125%        
Long-term debt $ 0       500
7.625% Senior Notes due 2025          
Debt Instrument [Line Items]          
Long-term debt $ 1,500       1,500
1.500% Senior Secured Notes due 2026          
Debt Instrument [Line Items]          
Interest rate, stated percentage 1.50%        
Long-term debt $ 1,000       1,000
2.250% Senior Notes due 2026          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.25%        
Long-term debt $ 1,800       0
2.625% Senior Notes due 2026          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.625%        
Long-term debt $ 1,200       0
6.500% Senior Notes due 2026          
Debt Instrument [Line Items]          
Interest rate, stated percentage 6.50%     6.50%  
Long-term debt $ 0       2,000
4.500% Senior Notes due 2026          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.50%        
Long-term debt $ 0       1,000
4.500% Senior Notes due 2026 | Affiliates          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.50%        
Long-term debt $ 0       1,000
4.500% Senior Notes due 2026 | Affiliates | Senior Notes          
Debt Instrument [Line Items]          
Interest rate, stated percentage   4.50%      
7.625% Senior Notes due 2026          
Debt Instrument [Line Items]          
Long-term debt $ 1,500       1,500
3.750% Senior Secured Notes due 2027          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.75%        
Long-term debt $ 4,000       4,000
5.375% Senior Notes due 2027          
Debt Instrument [Line Items]          
Interest rate, stated percentage 5.375%        
Long-term debt $ 500       500
2.050% Senior Secured Notes due 2028          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.05%        
Long-term debt $ 1,750       1,750
4.750% Senior Notes due 2028          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.75%        
Long-term debt $ 1,500       1,500
4.750% Senior Notes due 2028 | Affiliates          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.75%        
Long-term debt $ 1,500       1,500
5.152% Series 2018-1 A-2 Notes due 2028          
Debt Instrument [Line Items]          
Long-term debt 1,838       1,838
6.875% Senior Notes due 2028          
Debt Instrument [Line Items]          
Long-term debt $ 2,475       2,475
2.400% Senior Secured Notes due 2029          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.40%        
Long-term debt $ 500       0
2.625% Senior Notes due 2029          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.625%        
Long-term debt $ 1,000       0
3.375% Senior Notes due 2029          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.375%        
Long-term debt $ 2,350       0
3.875% Senior Secured Notes due 2030          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.875%        
Long-term debt $ 7,000       7,000
2.250% Senior Secured Notes due 2031          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.25%        
Long-term debt $ 1,000       1,000
2.550% Senior Secured Notes due 2031          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.55%        
Long-term debt $ 2,500       2,500
2.875% Senior Notes due 2031          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.875%        
Long-term debt $ 1,000       0
3.500% Senior Notes due 2031          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.50%        
Long-term debt $ 2,450       0
2.700% Senior Secured Notes due 2032          
Debt Instrument [Line Items]          
Interest rate, stated percentage 2.70%        
Long-term debt $ 1,000       0
8.750% Senior Notes due 2032          
Debt Instrument [Line Items]          
Long-term debt $ 2,000       2,000
4.375% Senior Secured Notes due 2040          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.375%        
Long-term debt $ 2,000       2,000
3.000% Senior Secured Notes due 2041          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.00%        
Long-term debt $ 2,500       2,500
4.500% Senior Secured Notes due 2050          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.50%        
Long-term debt $ 3,000       3,000
3.300% Senior Secured Notes due 2051          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.30%        
Long-term debt $ 3,000       3,000
3.400% Senior Secured Notes due 2052          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.40%   3.40%    
Long-term debt $ 2,800       0
3.600% Senior Secured Notes due 2060          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.60%   3.60%    
Long-term debt $ 1,700       1,000
Other debt          
Debt Instrument [Line Items]          
Long-term debt 47       $ 240
Sprint          
Debt Instrument [Line Items]          
Total debt $ 21,720        
Sprint | 3.360% Series 2016-1 A-1 Notes due 2021          
Debt Instrument [Line Items]          
Interest rate, stated percentage 3.36%        
Total debt $ 0        
Sprint | 11.500% Senior Notes due 2021          
Debt Instrument [Line Items]          
Interest rate, stated percentage 11.50%        
Sprint | 11.500% Senior Notes due 2021 | Senior Notes          
Debt Instrument [Line Items]          
Total debt $ 0        
Sprint | 6.000% Senior Notes due 2022          
Debt Instrument [Line Items]          
Interest rate, stated percentage 6.00%        
Sprint | 6.000% Senior Notes due 2022 | Senior Notes          
Debt Instrument [Line Items]          
Total debt $ 2,312        
Sprint | 7.875% Senior Notes due 2023          
Debt Instrument [Line Items]          
Interest rate, stated percentage 7.875%        
Sprint | 7.875% Senior Notes due 2023 | Senior Notes          
Debt Instrument [Line Items]          
Total debt $ 4,472        
Sprint | 7.125% Senior Notes due 2024          
Debt Instrument [Line Items]          
Interest rate, stated percentage 7.125%        
Sprint | 7.125% Senior Notes due 2024 | Senior Notes          
Debt Instrument [Line Items]          
Total debt $ 2,650        
Sprint | 4.738% Series 2018-1 A-1 Notes due 2025          
Debt Instrument [Line Items]          
Interest rate, stated percentage 4.738%        
Total debt $ 1,735        
Sprint | 7.625% Senior Notes due 2025          
Debt Instrument [Line Items]          
Interest rate, stated percentage 7.625%        
Sprint | 7.625% Senior Notes due 2025 | Senior Notes          
Debt Instrument [Line Items]          
Total debt $ 1,618        
Sprint | 7.625% Senior Notes due 2026          
Debt Instrument [Line Items]          
Interest rate, stated percentage 7.625%        
Sprint | 7.625% Senior Notes due 2026 | Senior Notes          
Debt Instrument [Line Items]          
Total debt $ 1,648        
Sprint | 5.152% Series 2018-1 A-2 Notes due 2028          
Debt Instrument [Line Items]          
Interest rate, stated percentage 5.152%        
Total debt $ 1,936        
Sprint | 6.875% Senior Notes due 2028          
Debt Instrument [Line Items]          
Interest rate, stated percentage 6.875%        
Sprint | 6.875% Senior Notes due 2028 | Senior Notes          
Debt Instrument [Line Items]          
Total debt $ 2,772        
Sprint | 8.750% Senior Notes due 2032          
Debt Instrument [Line Items]          
Interest rate, stated percentage 8.75%        
Sprint | 8.750% Senior Notes due 2032 | Senior Notes          
Debt Instrument [Line Items]          
Total debt $ 2,577        
Sprint | Other debt          
Debt Instrument [Line Items]          
Total debt $ 0