| Financial Information for Tracking Stock Groups (Tables)
 | 3 Months Ended | 
| Mar. 31, 2023 | 
|---|
| Condensed Balance Sheets | BALANCE SHEET INFORMATION March 31, 2023 (unaudited) 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  |  |  | Attributed (note 1) |  |  |  |  |  |  
|  |  | Liberty  |  |  |  |  |  |  |  |  |  |  
|  |  | SiriusXM  |  | Braves |  | Formula One  |  | Inter-Group |  | Consolidated |  |  
|  |      | Group |  | Group |  | Group |  | Eliminations |  | Liberty |      |  |  |  
|  |  | amounts in millions |  |  
| Assets |  |  |  |  |  |  |  |  |  |  |  |  |  
| Current assets: |  |  |  |  |  |  |  |  |  |  |  |  |  
| Cash and cash equivalents |  | $ |  430 |  |  215 |  |  1,584 |  |  — |  |  2,229 |   |  
| Trade and other receivables, net |  |   |  587 |  |  23 |  |  91 |  |  — |  |  701 |   |  
| Other current assets |  |   |  366 |  |  62 |  |  278 |  |  — |  |  706 |   |  
| Total current assets |  |   |  1,383 |  |  300 |  |  1,953 |  |  — |  |  3,636 |   |  
| Intergroup interests (note 1) |  |  |  134 |  |  — |  |  228 |  |  (362) |  |  — |  |  
| Investments in affiliates, accounted for using the equity method (note 1) |  |   |  862 |  |  94 |  |  37 |  |  — |  |  993 |   |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Property and equipment, at cost |  |   |  2,926 |  |  1,021 |  |  616 |  |  — |  |  4,563 |   |  
| Accumulated depreciation |  |   |  (1,742) |  |  (292) |  |  (112) |  |  — |  |  (2,146) |   |  
|  |  |   |  1,184 |  |  729 |  |  504 |  |  — |  |  2,417 |   |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Intangible assets not subject to amortization |  |  |  |  |  |  |  |  |  |  |  |  |  
| Goodwill |  |   |  15,209 |  |  176 |  |  3,956 |  |  — |  |  19,341 |   |  
| FCC licenses |  |   |  8,600 |  |  — |  |  — |  |  — |  |  8,600 |   |  
| Other |  |   |  1,242 |  |  124 |  |  — |  |  — |  |  1,366 |   |  
|  |  |   |  25,051 |  |  300 |  |  3,956 |  |  — |  |  29,307 |   |  
| Intangible assets subject to amortization, net |  |   |  1,060 |  |  28 |  |  3,083 |  |  — |  |  4,171 |   |  
| Other assets |  |   |  529 |  |  67 |  |  1,217 |  |  (4) |  |  1,809 |   |  
| Total assets |  | $ |  30,203 |  |  1,518 |  |  10,978 |  |  (366) |  |  42,333 |   |  
|  |  |  |  |  |  |  |  |  |  |  |  |  |  
| Liabilities and Equity |  |  |  |  |  |  |  |  |  |  |  |  |  
| Current liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  
| Intergroup payable (receivable) (note 3) |  | $ |  35 |  |  (2) |  |  (33) |  |  — |  |  — |  |  
| Accounts payable and accrued liabilities |  |  |  1,229 |   |  66 |  |  318 |  |  — |  |  1,613 |  |  
| Current portion of debt |  |  |  608 |  |  75 |  |  23 |  |  — |  |  706 |  |  
| Deferred revenue |  |   |  1,307 |   |  191 |  |  655 |  |  — |  |  2,153 |  |  
| Other current liabilities |  |   |  80 |   |  5 |  |  35 |  |  — |  |  120 |  |  
| Total current liabilities |  |   |  3,259 |   |  335 |  |  998 |  |  — |  |  4,592 |  |  
| Long-term debt (note 1) |  |   |  12,292 |   |  463 |  |  2,935 |  |  — |  |  15,690 |  |  
| Deferred income tax liabilities |  |   |  2,046 |   |  46 |  |  — |  |  (4) |  |  2,088 |  |  
| Redeemable intergroup interests (note 1) |  |  |  — |  |  291 |  |  71 |  |  (362) |  |  — |  |  
| Other liabilities |  |   |  596 |   |  147 |  |  136 |  |  — |  |  879 |  |  
| Total liabilities |  |   |  18,193 |   |  1,282 |  |  4,140 |  |  (366) |  |  23,249 |  |  
| Equity / Attributed net assets |  |   |  8,920 |   |  229 |  |  6,813 |  |  — |  |  15,962 |  |  
| Noncontrolling interests in equity of subsidiaries |  |   |  3,090 |   |  7 |  |  25 |  |  — |  |  3,122 |  |  
| Total liabilities and equity |  | $ |  30,203 |   |  1,518 |  |  10,978 |  |  (366) |  |  42,333 |  |  | 
| Condensed Statement of Operations | STATEMENT OF OPERATIONS INFORMATION Three months ended March 31, 2023 (unaudited)  
|  |  |  |  |  |  |  |  |  |  |  |  
|  |  |  | Attributed (note 1) |  |  |  |  
|  |  | Liberty  |  |  |  |  |  |  |  |  
|  |  | SiriusXM  |  | Braves |  |  Formula One |  | Consolidated |  |  
|  |  | Group |  | Group |  | Group |  | Liberty |  |  |  |  
|  |  | amounts in millions |  |  
| Revenue: |  |  |  |  |  |  |  |  |  |  |  
| Sirius XM Holdings revenue |  | $ |  2,144 |   |  — |  |  — |  |  2,144 |  |  
| Formula 1 revenue |  |  |  — |  |  — |  |  381 |  |  381 |  |  
| Other revenue |  |   |  — |   |  31 |  |  — |  |  31 |  |  
| Total revenue |  |   |  2,144 |   |  31 |  |  381 |  |  2,556 |  |  
| Operating costs and expenses, including stock-based compensation (note 2): |  |  |  |  |  |  |  |  |  |  |  
| Cost of Sirius XM Holdings services (exclusive of depreciation shown separately below): |  |  |  |  |  |  |  |  |  |  |  
| Revenue share and royalties |  |   |  700 |   |  — |  |  — |  |  700 |  |  
| Programming and content |  |   |  150 |   |  — |  |  — |  |  150 |  |  
| Customer service and billing |  |   |  122 |   |  — |  |  — |  |  122 |  |  
| Other |  |   |  52 |   |  — |  |  — |  |  52 |  |  
| Cost of Formula 1 revenue (exclusive of depreciation shown separately below) |  |  |  — |  |  — |  |  206 |  |  206 |  |  
| Subscriber acquisition costs |  |   |  90 |   |  — |  |  — |  |  90 |  |  
| Other operating expenses |  |   |  79 |   |  39 |  |  — |  |  118 |  |  
| Selling, general and administrative |  |   |  385 |   |  26 |  |  75 |  |  486 |  |  
| Impairment, restructuring and acquisition costs, net of recoveries |  |  |  32 |   |  — |  |  — |  |  32 |  |  
| Depreciation and amortization |  |   |  161 |   |  15 |  |  84 |  |  260 |  |  
|  |  |   |  1,771 |   |  80 |  |  365 |  |  2,216 |  |  
| Operating income (loss) |  |   |  373 |   |  (49) |  |  16 |  |  340 |  |  
| Other income (expense): |  |  |  |  |  |  |  |  |  |  |  
| Interest expense |  |   |  (136) |   |  (9) |  |  (51) |  |  (196) |  |  
| Share of earnings (losses) of affiliates, net |  |   |  (7) |   |  (1) |  |  (2) |  |  (10) |  |  
| Realized and unrealized gains (losses) on financial instruments, net |  |   |  2 |   |  (1) |  |  (47) |  |  (46) |  |  
| Unrealized gains (losses) on intergroup interests (note 1) |  |  |  54 |  |  (13) |  |  (41) |  |  — |  |  
| Other, net |  |   |  3 |   |  1 |  |  10 |  |  14 |  |  
|  |  |   |  (84) |   |  (23) |  |  (131) |  |  (238) |  |  
| Earnings (loss) before income taxes |  |   |  289 |   |  (72) |  |  (115) |  |  102 |  |  
| Income tax (expense) benefit |  |   |  (69) |   |  13 |  |  6 |  |  (50) |  |  
| Net earnings (loss) |  |   |  220 |   |  (59) |  |  (109) |  |  52 |  |  
| Less net earnings (loss) attributable to the noncontrolling interests |  |   |  37 |   |  — |  |  — |  |  37 |  |  
| Net earnings (loss) attributable to Liberty stockholders |  | $ |  183 |   |  (59) |  |  (109) |  |  15 |  |   STATEMENT OF OPERATIONS INFORMATION Three months ended March 31, 2022 (unaudited)  
|  |  |  |  |  |  |  |  |  |  |  |  
|  |  |  | Attributed (note 1) |  |  |  |  
|  |  | Liberty  |  |  |  |  |  |  |  |  
|  |  | SiriusXM |  | Braves |  |  Formula One |  | Consolidated |  |  
|  |  | Group |  | Group |  | Group |  | Liberty |  |  |  |  
|  |  | amounts in millions |  |  
| Revenue: |  |  |  |  |  |  |  |  |  |  |  
| Sirius XM Holdings revenue |  | $ |  2,186 |   |  — |  |  — |  |  2,186 |  |  
| Formula 1 revenue |  |  |  — |  |  — |  |  360 |  |  360 |  |  
| Other revenue |  |   |  — |   |  23 |  |  — |  |  23 |  |  
| Total revenue |  |   |  2,186 |   |  23 |  |  360 |  |  2,569 |  |  
| Operating costs and expenses, including stock-based compensation (note 2): |  |  |  |  |  |  |  |  |  |  |  
| Cost of Sirius XM Holdings services (exclusive of depreciation shown separately below): |  |  |  |  |  |  |  |  |  |  |  
| Revenue share and royalties |  |   |  670 |   |  — |  |  — |  |  670 |  |  
| Programming and content |  |   |  140 |   |  — |  |  — |  |  140 |  |  
| Customer service and billing |  |   |  125 |   |  — |  |  — |  |  125 |  |  
| Other |  |   |  54 |   |  — |  |  — |  |  54 |  |  
| Cost of Formula 1 revenue (exclusive of depreciation shown separately below) |  |  |  — |  |  — |  |  195 |  |  195 |  |  
| Subscriber acquisition costs |  |   |  90 |   |  — |  |  — |  |  90 |  |  
| Other operating expenses |  |   |  67 |   |  23 |  |  — |  |  90 |  |  
| Selling, general and administrative |  |   |  404 |   |  22 |  |  56 |  |  482 |  |  
| Depreciation and amortization |  |   |  152 |   |  18 |  |  90 |  |  260 |  |  
|  |  |   |  1,702 |   |  63 |  |  341 |  |  2,106 |  |  
| Operating income (loss) |  |   |  484 |   |  (40) |  |  19 |  |  463 |  |  
| Other income (expense): |  |  |  |  |  |  |  |  |  |  |  
| Interest expense |  |   |  (122) |   |  (6) |  |  (29) |  |  (157) |  |  
| Share of earnings (losses) of affiliates, net |  |   |  (18) |   |  4 |  |  — |  |  (14) |  |  
| Realized and unrealized gains (losses) on financial instruments, net |  |   |  61 |   |  5 |  |  (7) |  |  59 |  |  
| Unrealized gains (losses) on intergroup interests (note 1) |  |  |  20 |  |  1 |  |  (21) |  |  — |  |  
| Other, net |  |   |  20 |   |  20 |  |  5 |  |  45 |  |  
|  |  |   |  (39) |   |  24 |  |  (52) |  |  (67) |  |  
| Earnings (loss) before income taxes |  |   |  445 |   |  (16) |  |  (33) |  |  396 |  |  
| Income tax (expense) benefit |  |   |  (101) |   |  3 |  |  (2) |  |  (100) |  |  
| Net earnings (loss) |  |   |  344 |   |  (13) |  |  (35) |  |  296 |  |  
| Less net earnings (loss) attributable to the noncontrolling interests |  |   |  56 |   |  — |  |  9 |  |  65 |  |  
| Less net earnings (loss) attributable to redeemable noncontrolling interest |  |  |  — |  |  — |  |  (9) |  |  (9) |  |  
| Net earnings (loss) attributable to Liberty stockholders |  | $ |  288 |   |  (13) |  |  (35) |  |  240 |  |   | 
| Condensed Statement of Cash Flows | STATEMENT OF CASH FLOWS INFORMATION Three months ended March 31, 2023 (unaudited)  
|  |  |  |  |  |  |  |  |  |  |  |  
|  |  |  | Attributed (note 1) |  |  |  |  
|  |  | Liberty  |  |  |  |  |  |  |  |  
|  |  | SiriusXM  |  | Braves |  |  Formula One |  | Consolidated |  |  
|  |  | Group |  | Group |  | Group |  | Liberty |  |  |  |  
|  |  | amounts in millions |  |  
| Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |  
| Net earnings (loss) |  | $ |  220 |   |  (59) |  |  (109) |  |  52 |  |  
| Adjustments to reconcile net earnings (loss) to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  
| Depreciation and amortization |  |   |  161 |   |  15 |  |  84 |  |  260 |  |  
| Stock-based compensation |  |   |  48 |   |  3 |  |  5 |  |  56 |  |  
| Non-cash impairment and restructuring costs |  |  |  8 |   |  — |  |  — |  |  8 |  |  
| Share of (earnings) loss of affiliates, net |  |   |  7 |   |  1 |  |  2 |  |  10 |  |  
| Unrealized (gains) losses on intergroup interests, net |  |  |  (54) |  |  13 |  |  41 |  |  — |  |  
| Realized and unrealized (gains) losses on financial instruments, net |  |   |  (2) |   |  1 |  |  47 |  |  46 |  |  
| Deferred income tax expense (benefit) |  |   |  7 |   |  (8) |  |  (5) |  |  (6) |  |  
| Intergroup tax allocation |  |  |  31 |  |  (5) |  |  (26) |  |  — |  |  
| Other charges (credits), net |  |   |  4 |   |  1 |  |  (3) |  |  2 |  |  
| Changes in operating assets and liabilities |  |  |  |  |  |  |  |  |  |  |  
| Current and other assets |  |   |  46 |   |  27 |  |  (8) |  |  65 |  |  
| Payables and other liabilities |  |   |  (157) |   |  96 |  |  229 |  |  168 |  |  
| Net cash provided (used) by operating activities |  |   |  319 |   |  85 |  |  257 |  |  661 |  |  
| Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |  
| Investments in equity method affiliates and debt and equity securities |  |   |  (39) |   |  — |  |  (130) |  |  (169) |  |  
| Cash proceeds from dispositions |  |  |  — |  |  — |  |  34 |  |  34 |  |  
| Capital expended for property and equipment, including internal-use software and website development |  |   |  (205) |   |  (14) |  |  (62) |  |  (281) |  |  
| Other investing activities, net |  |   |  2 |   |  — |  |  (1) |  |  1 |  |  
| Net cash provided (used) by investing activities |  |   |  (242) |   |  (14) |  |  (159) |  |  (415) |  |  
| Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |  
| Borrowings of debt |  |   |  1,479 |   |  — |  |  — |  |  1,479 |  |  
| Repayments of debt |  |   |  (1,633) |   |  (4) |  |  (53) |  |  (1,690) |  |  
| Intergroup (repayments) borrowings |  |  |  202 |  |  — |  |  (202) |  |  — |  |  
| Subsidiary shares repurchased by subsidiary |  |   |  (62) |   |  — |  |  — |  |  (62) |  |  
| Cash dividends paid by subsidiary |  |  |  (17) |  |  — |  |  — |  |  (17) |  |  
| Taxes paid in lieu of shares issued for stock-based compensation |  |   |  (15) |   |  (1) |  |  (8) |  |  (24) |  |  
| Other financing activities, net |  |  |  37 |  |  6 |  |  14 |  |  57 |  |  
| Net cash provided (used) by financing activities |  |   |  (9) |   |  1 |  |  (249) |  |  (257) |  |  
| Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash |  |  |  — |  |  — |  |  2 |  |  2 |  |  
| Net increase (decrease) in cash, cash equivalents and restricted cash |  |   |  68 |   |  72 |  |  (149) |  |  (9) |  |  
| Cash, cash equivalents and restricted cash at beginning of period |  |   |  370 |   |  173 |  |  1,733 |  |  2,276 |  |  
| Cash, cash equivalents and restricted cash at end of period |  | $ |  438 |   |  245 |  |  1,584 |  |  2,267 |  |   STATEMENT OF CASH FLOWS INFORMATION Three months ended March 31, 2022 (unaudited)  
|  |  |  |  |  |  |  |  |  |  |  |  
|  |  |  | Attributed (note 1) |  |  |  |  
|  |  | Liberty  |  |  |  |  |  |  |  |  
|  |  | SiriusXM  |  | Braves |  |  Formula One |  | Consolidated |  |  
|  |  | Group |  | Group |  | Group |  | Liberty |  |  |  |  
|  |  | amounts in millions |  |  
| Cash flows from operating activities: |  |  |  |  |  |  |  |  |  |  |  
| Net earnings (loss) |  | $ |  344 |   |  (13) |  |  (35) |  |  296 |  |  
| Adjustments to reconcile net earnings (loss) to net cash provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  
| Depreciation and amortization |  |   |  152 |   |  18 |  |  90 |  |  260 |  |  
| Stock-based compensation |  |   |  49 |   |  3 |  |  3 |  |  55 |  |  
| Share of (earnings) loss of affiliates, net |  |   |  18 |   |  (4) |  |  — |  |  14 |  |  
| Unrealized (gains) losses on intergroup interests, net |  |  |  (20) |  |  (1) |  |  21 |  |  — |  |  
| Realized and unrealized (gains) losses on financial instruments, net |  |   |  (61) |   |  (5) |  |  7 |  |  (59) |  |  
| Deferred income tax expense (benefit) |  |   |  39 |   |  (10) |  |  26 |  |  55 |  |  
| Intergroup tax allocation |  |  |  42 |  |  7 |  |  (49) |  |  — |  |  
| Other charges (credits), net |  |   |  (11) |   |  (20) |  |  (2) |  |  (33) |  |  
| Changes in operating assets and liabilities |  |  |  |  |  |  |  |  |  |  |  
| Current and other assets |  |   |  21 |   |  23 |  |  (158) |  |  (114) |  |  
| Payables and other liabilities |  |   |  (238) |   |  83 |  |  232 |  |  77 |  |  
| Net cash provided (used) by operating activities |  |   |  335 |   |  81 |  |  135 |  |  551 |  |  
| Cash flows from investing activities: |  |  |  |  |  |  |  |  |  |  |  
| Investments in equity method affiliates and debt and equity securities |  |   |  (1) |   |  (5) |  |  (3) |  |  (9) |  |  
| Cash proceeds from dispositions |  |  |  50 |  |  47 |  |  — |  |  97 |  |  
| Capital expended for property and equipment, including internal-use software and website development |  |   |  (97) |   |  (4) |  |  (10) |  |  (111) |  |  
| Other investing activities, net |  |   |  (42) |   |  — |  |  76 |  |  34 |  |  
| Net cash provided (used) by investing activities |  |   |  (90) |   |  38 |  |  63 |  |  11 |  |  
| Cash flows from financing activities: |  |  |  |  |  |  |  |  |  |  |  
| Borrowings of debt |  |   |  1,740 |   |  15 |  |  — |  |  1,755 |  |  
| Repayments of debt |  |   |  (1,204) |   |  (37) |  |  (1) |  |  (1,242) |  |  
| Liberty stock repurchases |  |  |  (202) |  |  — |  |  (37) |  |  (239) |  |  
| Subsidiary shares repurchased by subsidiary |  |   |  (206) |   |  — |  |  — |  |  (206) |  |  
| Cash dividends paid by subsidiary |  |  |  (201) |  |  — |  |  — |  |  (201) |  |  
| Taxes paid in lieu of shares issued for stock-based compensation |  |   |  (61) |   |  — |  |  26 |  |  (35) |  |  
| Other financing activities, net |  |  |  1 |  |  (4) |  |  7 |  |  4 |  |  
| Net cash provided (used) by financing activities |  |   |  (133) |   |  (26) |  |  (5) |  |  (164) |  |  
| Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash |  |  |  — |  |  — |  |  (2) |  |  (2) |  |  
| Net increase (decrease) in cash, cash equivalents and restricted cash |  |   |  112 |   |  93 |  |  191 |  |  396 |  |  
| Cash, cash equivalents and restricted cash at beginning of period |  |   |  606 |   |  244 |  |  2,074 |  |  2,924 |  |  
| Cash, cash equivalents and restricted cash at end of period |  | $ |  718 |   |  337 |  |  2,265 |  |  3,320 |  |  |