Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Impact of Adoption on Condensed Consolidated Balance Sheet) (Details)

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Summary of Significant Accounting Policies (Impact of Adoption on Condensed Consolidated Balance Sheet) (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Assets      
Other current assets $ 152 $ 54  
Total current assets 851 334  
Other non-current assets 265 187  
Total assets 4,976 2,137 $ 1,998
Liabilities and net investment      
Deferred income 109 84  
Total current liabilities 693 411  
Deferred income taxes 399 173  
Deferred income 164 164  
Other non-current liabilities 182 46  
Total liabilities 3,558 875  
Former Parent’s net investment 0 1,257  
Total liabilities and net investment $ 4,976 2,137  
Previously Reported Balance      
Assets      
Other current assets   50  
Total current assets   330  
Other non-current assets   176  
Total assets   2,122  
Liabilities and net investment      
Deferred income   79  
Total current liabilities   406  
Deferred income taxes   181  
Deferred income   76  
Other non-current liabilities   78  
Total liabilities   822  
Former Parent’s net investment   1,295  
Total liabilities and net investment   2,122  
New Revenue Standard Adjustments | Accounting Standards Update 2014-09      
Assets      
Other current assets   4  
Total current assets   4  
Other non-current assets   11  
Total assets   15  
Liabilities and net investment      
Deferred income   5  
Total current liabilities   5  
Deferred income taxes   (8)  
Deferred income   88  
Other non-current liabilities   (32)  
Total liabilities   53  
Former Parent’s net investment   (38)  
Total liabilities and net investment   $ 15