Quarterly report pursuant to Section 13 or 15(d)

Debt - Senior Notes (Details)

v3.10.0.1
Debt - Senior Notes (Details) - Senior Notes - $1,800 million 5.375% Senior notes, due 2026 - USD ($)
Sep. 30, 2018
May 31, 2018
Debt Instrument [Line Items]    
Aggregate principal $ 1,800,000,000 $ 1,800,000,000
Interest rate 5.375% 5.375%