Financial Information for Tracking Stock Groups - Balance Sheet (Details) - USD ($) $ in Millions |
Sep. 30, 2017 |
Dec. 31, 2016 |
Sep. 30, 2016 |
Dec. 31, 2015 |
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
$ 783
|
$ 562
|
$ 940
|
$ 201
|
Trade and other receivables, net |
353
|
240
|
Ìý
|
Ìý
|
Other current assets |
299
|
227
|
Ìý
|
Ìý
|
Total current assets |
1,435
|
1,029
|
Ìý
|
Ìý
|
Investments in available-for-sale securities and other cost investments |
1,120
|
1,309
|
Ìý
|
Ìý
|
Investments in affiliates, accounted for using the equity method |
1,772
|
1,117
|
Ìý
|
Ìý
|
Property and equipment, at cost |
3,485
|
3,182
|
Ìý
|
Ìý
|
Accumulated depreciation |
(971)
|
(830)
|
Ìý
|
Ìý
|
Property and equipment, net |
2,514
|
2,352
|
Ìý
|
Ìý
|
Goodwill |
18,395
|
14,345
|
Ìý
|
Ìý
|
FCC licenses |
8,600
|
8,600
|
Ìý
|
Ìý
|
Other |
1,074
|
1,073
|
Ìý
|
Ìý
|
Intangible assets not subject to amortization |
28,069
|
24,018
|
Ìý
|
Ìý
|
Intangible assets subject to amortization, net |
6,242
|
1,072
|
Ìý
|
Ìý
|
Other assets |
701
|
480
|
Ìý
|
Ìý
|
Total assets |
41,853
|
31,377
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Accounts Payable and accrued liabilities |
1,100
|
985
|
Ìý
|
Ìý
|
Current portion of debt |
47
|
5
|
Ìý
|
Ìý
|
Deferred revenue |
2,179
|
1,877
|
Ìý
|
Ìý
|
Other current liabilities |
28
|
5
|
Ìý
|
Ìý
|
Total current liabilities |
3,354
|
2,872
|
Ìý
|
Ìý
|
Long-term debt |
13,445
|
8,013
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
2,814
|
2,025
|
Ìý
|
Ìý
|
Other liabilities |
786
|
751
|
Ìý
|
Ìý
|
Total liabilities |
20,399
|
13,661
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent, Total |
15,839
|
11,756
|
Ìý
|
Ìý
|
Noncontrolling interests in equity of subsidiaries |
5,615
|
5,960
|
Ìý
|
Ìý
|
Total liabilities and equity |
41,853
|
31,377
|
Ìý
|
Ìý
|
Â鶹×îгöÆ· Sirius XM Group |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
234
|
287
|
611
|
112
|
Trade and other receivables, net |
225
|
Ìý
|
Ìý
|
Ìý
|
Other current assets |
198
|
Ìý
|
Ìý
|
Ìý
|
Total current assets |
657
|
Ìý
|
Ìý
|
Ìý
|
Investments in available-for-sale securities and other cost investments |
552
|
Ìý
|
Ìý
|
Ìý
|
Investments in affiliates, accounted for using the equity method |
680
|
164
|
Ìý
|
Ìý
|
Property and equipment, at cost |
2,191
|
Ìý
|
Ìý
|
Ìý
|
Accumulated depreciation |
(859)
|
Ìý
|
Ìý
|
Ìý
|
Property and equipment, net |
1,332
|
Ìý
|
Ìý
|
Ìý
|
Goodwill |
14,247
|
Ìý
|
Ìý
|
Ìý
|
FCC licenses |
8,600
|
Ìý
|
Ìý
|
Ìý
|
Other |
931
|
Ìý
|
Ìý
|
Ìý
|
Intangible assets not subject to amortization |
23,778
|
Ìý
|
Ìý
|
Ìý
|
Intangible assets subject to amortization, net |
971
|
Ìý
|
Ìý
|
Ìý
|
Other assets |
147
|
Ìý
|
Ìý
|
Ìý
|
Total assets |
28,117
|
Ìý
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Intergroup payable (receivable) |
(9)
|
Ìý
|
Ìý
|
Ìý
|
Accounts Payable and accrued liabilities |
838
|
Ìý
|
Ìý
|
Ìý
|
Current portion of debt |
4
|
Ìý
|
Ìý
|
Ìý
|
Deferred revenue |
1,846
|
Ìý
|
Ìý
|
Ìý
|
Other current liabilities |
8
|
Ìý
|
Ìý
|
Ìý
|
Total current liabilities |
2,687
|
Ìý
|
Ìý
|
Ìý
|
Long-term debt |
6,978
|
Ìý
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
2,292
|
Ìý
|
Ìý
|
Ìý
|
Other liabilities |
285
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities |
12,242
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent, Total |
10,277
|
Ìý
|
Ìý
|
Ìý
|
Noncontrolling interests in equity of subsidiaries |
5,598
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities and equity |
28,117
|
Ìý
|
Ìý
|
Ìý
|
Braves Group |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
129
|
107
|
109
|
13
|
Trade and other receivables, net |
51
|
Ìý
|
Ìý
|
Ìý
|
Other current assets |
23
|
Ìý
|
Ìý
|
Ìý
|
Total current assets |
203
|
Ìý
|
Ìý
|
Ìý
|
Investments in available-for-sale securities and other cost investments |
8
|
8
|
Ìý
|
Ìý
|
Investments in affiliates, accounted for using the equity method |
111
|
61
|
Ìý
|
Ìý
|
Property and equipment, at cost |
1,120
|
Ìý
|
Ìý
|
Ìý
|
Accumulated depreciation |
(36)
|
Ìý
|
Ìý
|
Ìý
|
Property and equipment, net |
1,084
|
Ìý
|
Ìý
|
Ìý
|
Goodwill |
180
|
Ìý
|
Ìý
|
Ìý
|
Other |
143
|
Ìý
|
Ìý
|
Ìý
|
Intangible assets not subject to amortization |
323
|
Ìý
|
Ìý
|
Ìý
|
Intangible assets subject to amortization, net |
59
|
Ìý
|
Ìý
|
Ìý
|
Other assets |
15
|
Ìý
|
Ìý
|
Ìý
|
Total assets |
1,803
|
Ìý
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Intergroup payable (receivable) |
(21)
|
Ìý
|
Ìý
|
Ìý
|
Accounts Payable and accrued liabilities |
108
|
Ìý
|
Ìý
|
Ìý
|
Current portion of debt |
43
|
Ìý
|
Ìý
|
Ìý
|
Deferred revenue |
27
|
Ìý
|
Ìý
|
Ìý
|
Total current liabilities |
157
|
Ìý
|
Ìý
|
Ìý
|
Long-term debt |
533
|
Ìý
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
75
|
Ìý
|
Ìý
|
Ìý
|
Redeemable intergroup interest |
230
|
Ìý
|
Ìý
|
Ìý
|
Other liabilities |
438
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities |
1,433
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent, Total |
355
|
Ìý
|
Ìý
|
Ìý
|
Noncontrolling interests in equity of subsidiaries |
15
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities and equity |
1,803
|
Ìý
|
Ìý
|
Ìý
|
Formula One Group |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
420
|
168
|
$ 220
|
$ 76
|
Trade and other receivables, net |
77
|
Ìý
|
Ìý
|
Ìý
|
Other current assets |
78
|
Ìý
|
Ìý
|
Ìý
|
Total current assets |
575
|
Ìý
|
Ìý
|
Ìý
|
Intergroup interest in the Â鶹×îгöÆ· Braves Group |
230
|
Ìý
|
Ìý
|
Ìý
|
Investments in available-for-sale securities and other cost investments |
560
|
1,301
|
Ìý
|
Ìý
|
Investments in affiliates, accounted for using the equity method |
981
|
$ 892
|
Ìý
|
Ìý
|
Property and equipment, at cost |
174
|
Ìý
|
Ìý
|
Ìý
|
Accumulated depreciation |
(76)
|
Ìý
|
Ìý
|
Ìý
|
Property and equipment, net |
98
|
Ìý
|
Ìý
|
Ìý
|
Goodwill |
3,968
|
Ìý
|
Ìý
|
Ìý
|
Intangible assets not subject to amortization |
3,968
|
Ìý
|
Ìý
|
Ìý
|
Intangible assets subject to amortization, net |
5,212
|
Ìý
|
Ìý
|
Ìý
|
Other assets |
569
|
Ìý
|
Ìý
|
Ìý
|
Total assets |
12,193
|
Ìý
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Intergroup payable (receivable) |
30
|
Ìý
|
Ìý
|
Ìý
|
Accounts Payable and accrued liabilities |
154
|
Ìý
|
Ìý
|
Ìý
|
Deferred revenue |
306
|
Ìý
|
Ìý
|
Ìý
|
Other current liabilities |
20
|
Ìý
|
Ìý
|
Ìý
|
Total current liabilities |
510
|
Ìý
|
Ìý
|
Ìý
|
Long-term debt |
5,934
|
Ìý
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
477
|
Ìý
|
Ìý
|
Ìý
|
Other liabilities |
63
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities |
6,984
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent, Total |
5,207
|
Ìý
|
Ìý
|
Ìý
|
Noncontrolling interests in equity of subsidiaries |
2
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities and equity |
12,193
|
Ìý
|
Ìý
|
Ìý
|
Elimination |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Intergroup interest in the Â鶹×îгöÆ· Braves Group |
(230)
|
Ìý
|
Ìý
|
Ìý
|
Other assets |
(30)
|
Ìý
|
Ìý
|
Ìý
|
Total assets |
(260)
|
Ìý
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
(30)
|
Ìý
|
Ìý
|
Ìý
|
Redeemable intergroup interest |
(230)
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities |
(260)
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities and equity |
$ (260)
|
Ìý
|
Ìý
|
Ìý
|