Annual report pursuant to Section 13 and 15(d)

Acquisitions Pro Forma (Details)

v3.8.0.1
Acquisitions Pro Forma (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Business Acquisition [Line Items]                      
Net earnings (loss) $ 1,429 $ 261 $ 156 $ 44 $ 186 $ 169 $ 142 $ 427 $ 1,890 $ 924 $ 248
Formula 1                      
Business Acquisition [Line Items]                      
Net earnings (loss)                 261    
Business Acquisition, Pro Forma Revenue                 7,595 7,072  
Business Acquisition, Pro Forma Net Income (Loss)                 1,874 743  
Net earnings (loss) attributable to Liberty stockholders                 $ 1,338 $ 499