Consolidated Statement of Changes in Equity - USD ($) $ in Millions |
Total |
Redeemable Noncontrolling Interests And Redeemable Subsidiary Preferred Stock [Member] |
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
Treasury Stock at Cost [Member] |
Accumulated Other Comprehensive Income (Loss) [Member] |
Noncontrolling Interest [Member] |
NBCUniversal Media LLC [Member] |
NBCUniversal Media LLC [Member]
Redeemable Noncontrolling Interest [Member]
|
NBCUniversal Media LLC [Member]
Member's Capital [Member]
|
NBCUniversal Media LLC [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
|
NBCUniversal Media LLC [Member]
Noncontrolling Interest [Member]
|
Class A Common Stock [Member]
Common Stock [Member]
|
Class A Special Common Stock [Member]
Common Stock [Member]
|
Class B Common Stock [Member]
Common Stock [Member]
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beginning Balance at Dec. 31, 2013 | $ 29,327 | $ 29,056 | $ (16) | $ 287 | |||||||||||
| Beginning Balance at Dec. 31, 2013 | $ 51,058 | $ 38,890 | $ 19,235 | $ (7,517) | $ 56 | $ 364 | $ 25 | $ 5 | $ 0 | ||||||
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||||||||||
| Stock compensation plans | 299 | 732 | (433) | ||||||||||||
| Repurchases and retirements of common stock | (4,251) | (928) | (3,323) | ||||||||||||
| Employee stock purchase plans | 118 | 118 | |||||||||||||
| Dividends declared | (2,320) | (2,320) | (1,641) | (1,641) | |||||||||||
| Issuance of subsidiary shares to noncontrolling interests | 11 | 11 | 0 | ||||||||||||
| Contributions From And Distributions To Noncontrolling Interests | (132) | (132) | (152) | (152) | |||||||||||
| Other comprehensive income (loss) | (202) | (202) | (143) | (143) | |||||||||||
| Other | (29) | (7) | (22) | (13) | (1) | (12) | |||||||||
| Net income (loss) | 8,516 | 8,380 | 136 | 3,259 | 3,115 | 144 | |||||||||
| Ending Balance at Dec. 31, 2014 | 53,068 | 38,805 | 21,539 | (7,517) | (146) | 357 | 25 | 5 | 0 | ||||||
| Ending Balance at Dec. 31, 2014 | 30,637 | 30,529 | (159) | 267 | |||||||||||
| Beginning Balance at Dec. 31, 2013 | $ 957 | $ 231 | |||||||||||||
| Increase (Decrease) in Temporary Equity [Roll Forward] | |||||||||||||||
| Issuance of subsidiary shares to noncontrolling interests, temporary equity | 85 | 85 | |||||||||||||
| Contributions from (distributions to) noncontrolling interests, net | (19) | (24) | |||||||||||||
| Other | (33) | ||||||||||||||
| Net income (loss) | 76 | 38 | |||||||||||||
| Ending Balance at Dec. 31, 2014 | 1,066 | 330 | |||||||||||||
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||||||||||
| Stock compensation plans | 337 | 739 | (402) | ||||||||||||
| Repurchases and retirements of common stock | (6,750) | (1,345) | (5,404) | (1) | |||||||||||
| Employee stock purchase plans | 136 | 136 | |||||||||||||
| Dividends declared | (2,483) | (2,483) | (1,385) | (1,385) | |||||||||||
| Contributions From And Distributions To Noncontrolling Interests | (146) | (146) | (159) | (159) | |||||||||||
| Other comprehensive income (loss) | (57) | (28) | (29) | (82) | (53) | (29) | |||||||||
| Contribution from member | 252 | 252 | |||||||||||||
| Reclassification of Class A Special common stock | 0 | 4 | (4) | ||||||||||||
| Universal Studios Japan | 1,440 | 1,440 | 1,429 | (11) | 1,440 | ||||||||||
| Other | 106 | 183 | (77) | 31 | 35 | (4) | |||||||||
| Net income (loss) | 8,327 | 8,163 | 164 | 3,580 | 3,414 | 166 | |||||||||
| Ending Balance at Dec. 31, 2015 | 53,978 | 38,518 | 21,413 | (7,517) | (174) | 1,709 | 29 | 0 | 0 | ||||||
| Ending Balance at Dec. 31, 2015 | 34,303 | 32,834 | (212) | 1,681 | |||||||||||
| Increase (Decrease) in Temporary Equity [Roll Forward] | |||||||||||||||
| Contributions from (distributions to) noncontrolling interests, net | 11 | (30) | |||||||||||||
| Other | 58 | 28 | |||||||||||||
| Net income (loss) | 86 | 44 | |||||||||||||
| Ending Balance at Dec. 31, 2015 | 1,221 | 1,221 | 372 | 372 | |||||||||||
| Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||||||||||
| Stock compensation plans | 394 | 720 | (326) | ||||||||||||
| Repurchases and retirements of common stock | (5,000) | (949) | (4,050) | (1) | |||||||||||
| Employee stock purchase plans | 156 | 156 | |||||||||||||
| Dividends declared | (2,656) | (2,656) | (1,606) | (1,606) | |||||||||||
| Contributions From And Distributions To Noncontrolling Interests | (134) | (134) | (148) | (148) | |||||||||||
| Other comprehensive income (loss) | 346 | 272 | 74 | 151 | 77 | 74 | |||||||||
| Contribution from member | 3,655 | 3,566 | 89 | ||||||||||||
| Other | 138 | (187) | 325 | 165 | 7 | 158 | |||||||||
| Net income (loss) | 8,952 | 8,695 | 257 | 4,497 | 4,235 | 262 | |||||||||
| Ending Balance at Dec. 31, 2016 | 56,174 | $ 38,258 | $ 23,076 | $ (7,517) | $ 98 | $ 2,231 | $ 28 | $ 0 | $ 0 | ||||||
| Ending Balance at Dec. 31, 2016 | 41,017 | $ 39,036 | $ (135) | $ 2,116 | |||||||||||
| Increase (Decrease) in Temporary Equity [Roll Forward] | |||||||||||||||
| Contributions from (distributions to) noncontrolling interests, net | (16) | (59) | |||||||||||||
| Other | 148 | 168 | |||||||||||||
| Net income (loss) | 93 | 49 | |||||||||||||
| Ending Balance at Dec. 31, 2016 | $ 1,446 | $ 1,446 | $ 530 | $ 530 |