Debt Narrative (details) (Details)	6 Months Ended
	Jun. 30, 2020 USD ($) days
Debt Instrument [Line Items]
debt weighted average balance | $	$ 93,400,000
Proceeds from Issuance of Commercial Paper | $	$ 1,300,000,000
Minimum [Member]
Debt Instrument [Line Items]
commercial paper days outstanding | days	1
Maximum [Member]
Debt Instrument [Line Items]
commercial paper days outstanding | days	18