Goodwill And Other Intangible Assets - Narrative (Details) $ in Millions	Jun. 30, 2017 USD ($)
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
Amortization expense relating to amortizable intangible assets, remainder of 2017	$ 83
Amortization expense relating to amortizable intangible assets, 2018	167
Amortization expense relating to amortizable intangible assets, 2019	140
Amortization expense relating to amortizable intangible assets, 2020	134
Amortization expense relating to amortizable intangible assets, 2021	103
Amortization expense relating to amortizable intangible assets, 2022	$ 84