XML 83 R71.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurement - Nonrecurring (Details) - Fair Value Measurements Nonrecurring [Member] - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2018
Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value - Net PP&E (held for sale) $ 201 $ 250
Before Tax Loss Net PPE (held for sale) 43 44
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value - Net PP&E (held for sale) 201 0
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value - Net PP&E (held for sale) $ 0 $ 250