Indebtedness Indebtedness (Issuances) (Details) - US Dollar Notes [Member]	Sep. 30, 2020 USD ($)
1.125% Notes due May 2023 [Member]
Debt Instrument [Line Items]
Face Value	$ 750,000,000
Interest Rate	1.125%
1.500% Notes due May 2025 [Member]
Debt Instrument [Line Items]
Face Value	$ 750,000,000
Interest Rate	1.50%
2.100% Notes due May 2030 [Member]
Debt Instrument [Line Items]
Face Value	$ 750,000,000
Interest Rate	2.10%