Financial Information for Tracking Stock Groups - Balance Sheet (Details) - USD ($) $ in Millions |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
$ 1,029
|
$ 562
|
$ 201
|
$ 681
|
Trade and other receivables, net |
358
|
240
|
Ìý
|
Ìý
|
Other current assets |
376
|
227
|
Ìý
|
Ìý
|
Total current assets |
1,763
|
1,029
|
Ìý
|
Ìý
|
Investments in available-for-sale securities and other cost investments |
1,114
|
1,309
|
Ìý
|
Ìý
|
Investments in affiliates, accounted for using the equity method |
1,750
|
1,117
|
Ìý
|
Ìý
|
Property and equipment, at cost |
3,596
|
3,182
|
Ìý
|
Ìý
|
Accumulated depreciation |
(1,055)
|
(830)
|
Ìý
|
Ìý
|
Property and equipment, net |
2,541
|
2,352
|
Ìý
|
Ìý
|
Goodwill |
18,383
|
14,345
|
14,345
|
Ìý
|
FCC licenses |
8,600
|
8,600
|
Ìý
|
Ìý
|
Other |
1,074
|
1,073
|
Ìý
|
Ìý
|
Intangible assets not subject to amortization |
28,057
|
24,018
|
Ìý
|
Ìý
|
Intangible assets subject to amortization, net |
6,131
|
1,072
|
Ìý
|
Ìý
|
Other assets |
640
|
480
|
Ìý
|
Ìý
|
Total assets |
41,996
|
31,377
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Accounts Payable and accrued liabilities |
1,250
|
985
|
Ìý
|
Ìý
|
Current portion of debt |
768
|
5
|
Ìý
|
Ìý
|
Deferred revenue |
1,941
|
1,877
|
Ìý
|
Ìý
|
Other current liabilities |
20
|
5
|
Ìý
|
Ìý
|
Total current liabilities |
3,979
|
2,872
|
Ìý
|
Ìý
|
Long-term debt |
13,186
|
8,013
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
1,478
|
2,025
|
Ìý
|
Ìý
|
Other liabilities |
779
|
751
|
Ìý
|
Ìý
|
Total liabilities |
19,422
|
13,661
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent, Total |
16,943
|
11,756
|
Ìý
|
Ìý
|
Noncontrolling interests in equity of subsidiaries |
5,631
|
5,960
|
Ìý
|
Ìý
|
Total liabilities and equity |
41,996
|
31,377
|
Ìý
|
Ìý
|
Â鶹×îгöÆ· Sirius XM Group |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
615
|
287
|
112
|
148
|
Trade and other receivables, net |
242
|
223
|
Ìý
|
Ìý
|
Other current assets |
207
|
206
|
Ìý
|
Ìý
|
Total current assets |
1,064
|
716
|
Ìý
|
Ìý
|
Investments in available-for-sale securities and other cost investments |
580
|
Ìý
|
Ìý
|
Ìý
|
Investments in affiliates, accounted for using the equity method |
672
|
164
|
Ìý
|
Ìý
|
Property and equipment, at cost |
2,274
|
2,079
|
Ìý
|
Ìý
|
Accumulated depreciation |
(927)
|
(746)
|
Ìý
|
Ìý
|
Property and equipment, net |
1,347
|
1,333
|
Ìý
|
Ìý
|
Goodwill |
14,247
|
14,165
|
Ìý
|
Ìý
|
FCC licenses |
8,600
|
8,600
|
Ìý
|
Ìý
|
Other |
931
|
930
|
Ìý
|
Ìý
|
Intangible assets not subject to amortization |
23,778
|
23,695
|
Ìý
|
Ìý
|
Intangible assets subject to amortization, net |
972
|
998
|
Ìý
|
Ìý
|
Other assets |
117
|
145
|
Ìý
|
Ìý
|
Total assets |
28,530
|
27,051
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Intergroup payable (receivable) |
9
|
5
|
Ìý
|
Ìý
|
Accounts Payable and accrued liabilities |
934
|
827
|
Ìý
|
Ìý
|
Current portion of debt |
755
|
5
|
Ìý
|
Ìý
|
Deferred revenue |
1,882
|
1,833
|
Ìý
|
Ìý
|
Other current liabilities |
3
|
3
|
Ìý
|
Ìý
|
Total current liabilities |
3,583
|
2,673
|
Ìý
|
Ìý
|
Long-term debt |
6,741
|
6,102
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
1,447
|
1,967
|
Ìý
|
Ìý
|
Other liabilities |
283
|
278
|
Ìý
|
Ìý
|
Total liabilities |
12,054
|
11,020
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent, Total |
10,861
|
10,085
|
Ìý
|
Ìý
|
Noncontrolling interests in equity of subsidiaries |
5,615
|
5,946
|
Ìý
|
Ìý
|
Total liabilities and equity |
28,530
|
27,051
|
Ìý
|
Ìý
|
Braves Group |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
132
|
107
|
13
|
11
|
Trade and other receivables, net |
32
|
15
|
Ìý
|
Ìý
|
Other current assets |
56
|
17
|
Ìý
|
Ìý
|
Total current assets |
220
|
139
|
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 |
145
|
61
|
Ìý
|
Ìý
|
Property and equipment, at cost |
1,150
|
943
|
Ìý
|
Ìý
|
Accumulated depreciation |
(51)
|
(13)
|
Ìý
|
Ìý
|
Property and equipment, net |
1,099
|
930
|
Ìý
|
Ìý
|
Goodwill |
180
|
180
|
Ìý
|
Ìý
|
Other |
143
|
143
|
Ìý
|
Ìý
|
Intangible assets not subject to amortization |
323
|
323
|
Ìý
|
Ìý
|
Intangible assets subject to amortization, net |
49
|
73
|
Ìý
|
Ìý
|
Other assets |
22
|
14
|
Ìý
|
Ìý
|
Total assets |
1,866
|
1,548
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Intergroup payable (receivable) |
(39)
|
(17)
|
Ìý
|
Ìý
|
Accounts Payable and accrued liabilities |
58
|
141
|
Ìý
|
Ìý
|
Current portion of debt |
13
|
Ìý
|
Ìý
|
Ìý
|
Deferred revenue |
51
|
44
|
Ìý
|
Ìý
|
Other current liabilities |
8
|
Ìý
|
Ìý
|
Ìý
|
Total current liabilities |
91
|
168
|
Ìý
|
Ìý
|
Long-term debt |
649
|
328
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
62
|
48
|
Ìý
|
Ìý
|
Redeemable intergroup interest |
202
|
187
|
Ìý
|
Ìý
|
Other liabilities |
435
|
417
|
Ìý
|
Ìý
|
Total liabilities |
1,439
|
1,148
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent, Total |
413
|
385
|
Ìý
|
Ìý
|
Noncontrolling interests in equity of subsidiaries |
14
|
15
|
Ìý
|
Ìý
|
Total liabilities and equity |
1,866
|
1,548
|
Ìý
|
Ìý
|
Formula One Group |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Cash and cash equivalents |
282
|
168
|
$ 76
|
$ 522
|
Trade and other receivables, net |
84
|
2
|
Ìý
|
Ìý
|
Other current assets |
113
|
5
|
Ìý
|
Ìý
|
Total current assets |
479
|
175
|
Ìý
|
Ìý
|
Intergroup interest in the Â鶹×îгöÆ· Braves Group |
202
|
187
|
Ìý
|
Ìý
|
Investments in available-for-sale securities and other cost investments |
526
|
1,301
|
Ìý
|
Ìý
|
Investments in affiliates, accounted for using the equity method |
933
|
892
|
Ìý
|
Ìý
|
Property and equipment, at cost |
172
|
160
|
Ìý
|
Ìý
|
Accumulated depreciation |
(77)
|
(71)
|
Ìý
|
Ìý
|
Property and equipment, net |
95
|
89
|
Ìý
|
Ìý
|
Goodwill |
3,956
|
Ìý
|
Ìý
|
Ìý
|
Intangible assets not subject to amortization |
3,956
|
Ìý
|
Ìý
|
Ìý
|
Intangible assets subject to amortization, net |
5,110
|
1
|
Ìý
|
Ìý
|
Other assets |
501
|
350
|
Ìý
|
Ìý
|
Total assets |
11,802
|
2,995
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Intergroup payable (receivable) |
30
|
12
|
Ìý
|
Ìý
|
Accounts Payable and accrued liabilities |
258
|
17
|
Ìý
|
Ìý
|
Deferred revenue |
8
|
Ìý
|
Ìý
|
Ìý
|
Other current liabilities |
9
|
3
|
Ìý
|
Ìý
|
Total current liabilities |
305
|
32
|
Ìý
|
Ìý
|
Long-term debt |
5,796
|
1,583
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
(31)
|
39
|
Ìý
|
Ìý
|
Other liabilities |
61
|
56
|
Ìý
|
Ìý
|
Total liabilities |
6,131
|
1,710
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent, Total |
5,669
|
1,286
|
Ìý
|
Ìý
|
Noncontrolling interests in equity of subsidiaries |
2
|
(1)
|
Ìý
|
Ìý
|
Total liabilities and equity |
11,802
|
2,995
|
Ìý
|
Ìý
|
Elimination |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Assets, Current |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Other current assets |
Ìý
|
(1)
|
Ìý
|
Ìý
|
Total current assets |
Ìý
|
(1)
|
Ìý
|
Ìý
|
Intergroup interest in the Â鶹×îгöÆ· Braves Group |
(202)
|
(187)
|
Ìý
|
Ìý
|
Other assets |
Ìý
|
(29)
|
Ìý
|
Ìý
|
Total assets |
(202)
|
(217)
|
Ìý
|
Ìý
|
Liabilities, Current [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Other current liabilities |
Ìý
|
(1)
|
Ìý
|
Ìý
|
Total current liabilities |
Ìý
|
(1)
|
Ìý
|
Ìý
|
Deferred income tax liabilities |
Ìý
|
(29)
|
Ìý
|
Ìý
|
Redeemable intergroup interest |
(202)
|
(187)
|
Ìý
|
Ìý
|
Total liabilities |
(202)
|
(217)
|
Ìý
|
Ìý
|
Stockholders' Equity Attributable to Parent [Abstract] |
Ìý
|
Ìý
|
Ìý
|
Ìý
|
Total liabilities and equity |
$ (202)
|
$ (217)
|
Ìý
|
Ìý
|