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Long-term Debt and Finance Leases - Senior Notes Outstanding with Early Redemption Features (Details) - Recourse Debt	Dec. 31, 2020	Dec. 02, 2020	May 24, 2019	May 14, 2019	Dec. 07, 2017	Aug. 02, 2016	May 23, 2016
7.250% Senior Notes due 2026
Debt Instrument [Line Items]
Interest rate, stated percentage	7.25%						7.25%
6.625% Senior Notes due 2027
Debt Instrument [Line Items]
Interest rate, stated percentage	6.625%					6.625%
5.750% Senior Notes due 2028
Debt Instrument [Line Items]
Interest rate, stated percentage	5.75%				5.75%
5.25% Senior Notes due 2029
Debt Instrument [Line Items]
Interest rate, stated percentage	5.25%		5.25%	5.25%
3.375% Senior Notes due 2029
Debt Instrument [Line Items]
Interest rate, stated percentage	3.375%	3.375%
3.625% Senior Notes due 2031
Debt Instrument [Line Items]
Interest rate, stated percentage		3.625%

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

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+ References

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